Izuku Midoriya

Izuku Midoriya (緑谷出久) is the main protagonist of Boku no Hero Academia. Though originally born without a Quirk, he manages to catch the attention of the legendary hero All Might and has since become his close pupil and a student at Yuuei.

Appearance
Izuku is a 15 year old boy with green eyes and black curly hair with green highlights. During his Junior High School days, he wore a black gakuran uniform with yellow buttons. In Yuuei, he wears the standard male uniform: a light grey suit over a white dress shirt and dark green dress pants, along with a red necktie. Izuku usually wears oversized red shoes. Though initially very skinny, Izuku has gained an array of well-developed abdominal muscles after his training with All Might.

Izuku's first hero costume is a dark green/teal full-body (including mask) unitard with a red belt, elbow pads, knee pads, gloves, and red boots. It has long ear-like protrusions that resemble All Might's haircut, and a mask with a smile on it. During the Ultimate Space & Jams Arc, while his costume is being repaired, Izuku wears his gym clothes: a blue track suit with thick white lines over his upper body and legs, which form the letters "UA".

After his fight with Shouto, the fingers on his right hand became a little deformed and he gained two scars on the sides of his hand.

Personality
Izuku is a very timid and polite boy. Due to being bullied since childhood for being born without a Quirk, he is initially portrayed as insecure, being more reserved and not self expressive, especially in front of Katsuki. However, after being accepted into Yuuei and facing Katsuki during Battle Training, he has gradually become more confident and brave.

Izuku is also very diligent and strong willed. Since he greatly admires Heroes and has always aimed to be one, he has an habit of writing down in his notebooks all he knows about heroes and their quirks, including other Yuuei students. He is a very caring person, and will never hesitate to rescue someone in danger, even if he knows he's not strong enough. When someone has a personal problem, Izuku will always try to help, even if its not his business. Izuku also has the tendency to overthink with anything that grabs his attention, which makes him start mumbling to himself a lot.

History
As a child, Izuku greatly admired heroes. Being a fan of All Might, he wished to be a hero like him once he got his Quirk. However, by the time kids his age had started manifesting their powers, Izuku still showed no signs of having any special abilities. Due to that, his mother chose to take him to a doctor, where he received the news that the fact that he has two joints on his pinky toe meant he would never have a Quirk. Later on that same day, Izuku kept watching videos of All Might on his computer and tearfully asked his mother if he could still become a hero. She hugged him and apologized, words that Izuku would remember as not what he wanted to hear.

Even so, Izuku kept aiming to be a hero and to get into Yuuei Academy. That led him to be constantly bullied and ridiculed by his childhood friend, Katsuki, and his classmates, who believed it was impossible for someone without a Quirk to ever become a hero.

Entrance Exam Arc
One day during school, it was revealed by Katsuki Bakugou that Izuku wishes to attend the prestigious "Yuuei" high school. His fellow students scoff at him and dismiss his ambitions as ridiculous. However, Izuku holds to his dreams and despite the mocking, he convicts himself to enter the school. The same day, while walking home, a villain fleeing the scene of a crime encounters Izuku. The villain had apparently escaped All Might earlier in the day. The villain decided that to avoid detection, he should take over Izuku's body. Just as Izuku fell into despair, All Might showed up and saved him. Stunned, Izuku asked for an autograph, but All Might left before he could ask the questions he had on his mind. In an effort to get All Might to stay, he latched on to All Might's leg and hanged on while he launched himself into the air.After a quick struggle they landed safely on a rooftop. Where Izuku asked if he could become a hero without an individuality. Telling All Might that he always wanted to be a hero and save people. Suddenly All Might's appearance drastically changes. He explains to him how a severe wound he received has placed a great restriction on his abilities, by only retaining his hero form 3 hours a day. All Might then saw a villain attacking from a distance. After a scene change down to the area of disaster, Izuku recognized Katsuki and ran into save him from the villain. As he went to grab him, All Might got to him first and attacked the villain. Katsuki became mad that he was saved and walked away. All Might then thanked Midoriya and offered him the chance to become a hero. All Might tells Izuku he's worthy to inherit his strength and that he has the power to transfer his Quirk to people. All Might then begins to train him at the Seaside Park by moving large pieces of garbage around, such as trucks, large office drawers, various craters, and bookshelves. After 10 months of training, the day of the entrance exam arrives. At six o'clock in the morning, at the last possible second, Izuku moves the final piece of garbage. All Might commends him and cuts off a piece of his hair and gives it to Izuku, who eats it, receiving his first dose, a very small piece of One For All. However, because the entrance exam is so close, Izuku must hurry to the school without getting used to the power. Izuku arrives at Yuuei for the Entrance Exam, excited that he will be able to have a chance at becoming a hero. As he runs forward and trips, but is saved by a girl's Quirk. The girl says she is nervous and asks if he is as well, to which he replies with a nod. The girl wishes him good luck while Izuku stands there awestruck, having talked to a girl for the first time in his life (even though he actually didn't talk to her). During the practical test, Izuku tries to destroy a robot, but finds himself too afraid to even move. Yuuga Aoyama appears and destroys the robot. Izuku realizes that he is running out of time. Suddenly, a huge robot appears and begins destroying the area. Izuku runs away but then he sees the same girl who helped him before on the ground about to be attacked by the huge robot. Izuku musters up the courage to fight the robot and, for the first time, uses One For All and attacks the huge robot with a devastating punch which completely destroys it and saves the life of the girl while shocking everyone else. However, Izuku's bones begin to crack due to having never used it before and begins falling. He tries to use Detroit Smash to land safely, but to no avail. The girl, whose life Izuku saved, uses her Quirk to allow him to land safely. The practical test is declared over, much to Izuku's sadness as he did not get a single point. Recovery Girl then heals his heavy injuries. One week later, Izuku receives a letter that will determine whether he was accepted into Yuuei or not. Izuku opens the letter in his room and a screen with All Might on it appears. He apologises for not contacting Izuku earlier and informs him that he will be working as a teacher at Yuuei. All Might tells him that he did fine on the written test, but since he scored zero points during the practical test he has failed. However, All Might tells him that because he rescued someone during the practical test, he earned 60 points, meaning he has passed and therefore being accepted into Yuuei, much to Izuku's joy and happiness.

Quirk Apprehension Test Arc
During the arc, Izuku is tested on the power and use of his quirk. He tries to throw a ball as far as he can using his quirk, but Shouta Aizawa stops him by using his Quirk. He eventually powers up he end of his fingers and launches the ball, but in the end, gets last place.

Battle Trial Arc
Izuku gets teamed up with Ochako Uraraka and must stop Katsuki Bakugou and Tenya IIda from blowing up a fake Nuclear Bomb. They successfully infiltrate the building and look around the corners to see if anyone was coming, where Katsuki ambushes them. Izuku manages to save Ochako from Katsuki's attack, but half of his mask is burned off in the process. As Katsuki is about to attack again, Izuku appears before him, grabs his right arm and throws him into the ground, knowing that he would use his right arm to attack. Izuku tells Katsuki that he has analyzed and taken notes (the same notes Katsuki blew up and threw away in the past) on many Heroes including him. He announces that he is no longer the "Deku" who was a loser, but the "Deku" who's vibe is never giving up, much to Katsuki's fury. Izuku tells Ochako to go on ahead while he fights Katsuki. He manages to grab Katsuki's leg with the Capture Tape, but Katsuki breaks free using an Explosion. Knowing he's at a disadvantage, Izuku retreats in order to think of a strategy and contacts Ochako to learn about her location for the strategy. Katsuki finds him and attacks Izuku with a great empowered Explosion. Izuku survies and calls Katsuki insane for doing that, but a seething Katsuki demands that Izuku use his Quirk. Izuku and Katsuki continue their fight, with Katsuki overpowering him although Izuku manages to hold his own. Izuku concludes that Katsuki is stronger than he is. Izuku decides to use his Quirk and informs Ochako to grab onto something. Instead of hitting Katsuki, Izuku aims his Detroit Smash into the ceiling, destroying the fifth floor's ground, but Izuku is forced to take the full brunt of Katsuki's Explosion. Although Izuku was unable to defeat Katsuki, it did distract Tenya long enough for Ochako to grab the fake Nuclear Bomb, allowing both Izuku and Ochako to win. Izuku is then taken away on a stretcher to have his wound attended to by Recovery Girl. After spending most of the day having his wounds healed, Izuku returns to his classroom. As he enters, Izuku is commended by many of his classmates for his performance during the battle trial. Ochako asks if he is alright, to which he replies that he is fine. Izuku then asks her where Katsuki is. Although many of his classmates try to stop him, Izuku goes to find Katsuki. Izuku finds him and tells him his secret: that he obtained his Quirk from someone else in order to convince him that he had not been deceiving him.

Ultimate Space & Jams Arc
Izuku is confronted by a reporter from the media, asking him questions about All Might, but Izuku makes an excuse to escape from the reporter. In class, Shouta Aizawa makes a remark about Izuku's performance in the battle trial and encourages him to work harder. Afterwards, Izuku is elected as Class President after the class votes, much to his shock. In the lunch room, Izuku is unsure if he is the right one for the task, but Tenya assures Izuku that he is. Izuku then learns that Tenya is from a prestigious family of super heroes. As they continue talking, the siren goes off and everyone begins evacuating. After Tenya stops the chaotic evacuation, Izuku returns to class where he decides to step down as Class President and gives the position to Tenya, deeming him more worthy of the position than him. In a flashback, Izuku is seen speaking to All Might telling him that he revealed to Katsuki about the secret of the One For All Quirk. However, All Might isn't angry about it since Katsuki interpreted it as nonsense and tells Izuku to continue keeping the secret to himself and no one else. In the present, Izuku changes into his gym clothes (since his Hero Costume was tattered during his battle with Katsuki in the battle trial) in preparation for the rescue trial. On the way to the USJ, Tsuyu compares Izuku's Quirk to All Might's, although Eijirou dismisses Tsuyu's claim since Izuku's Quirk hurts him unlike All Might's Quirk. Class 1-A arrive at the USJ and listen to No. 13's speech. Izuku applauds No. 13. Suddenly, villains attack the USJ which shocks Izuku Izuku is seen evacuating with his class. However, he is suddenly warped away by Black Mist to the flood area of the Ultimate Space and Jams. In the water, he is then confronted by a fish like villain who prepares to devour him, but Tsuyu saves him and throws him onto a boat along with Minoru. Izuku thanks her for saving him. Izuku wonders about the villains' goal and then decides that their goal now is to fight. Izuku says that Tsuyu was teleported (along with him and Minoru Mineta) to an area (the flood zone) that allows her to be at full strength and then deduces that the villains do not know what their Quirks are. He then says that although the villains beat them in sheer numbers and experience, the one advantage they do have is the element of surprise (their Quirks as the villains do not know about them). Izuku concocts a plan and after telling Tsuyu and Minoru, Izuku uses Deleware Smash on the water while Minoru throws his sticky substance. The spread out water converges in the center along with Minoru's sticky substance (with the villains being pulled in), causing all the villains in the water to be stuck together by Minoru's Quirk. Izuku then escapes along with Minoru and Tsuyu, with Tsuyu saying that he was impressive. Izuku says that their priority is to call for help, that they can take the waterside to the exit, but after remembering that Shouta is at the central plaza fighting a large group of villains, Izuku decides that they should head to the central plaza and try to be of some assistance to Shouta. However, after reaching the central plaza, Izuku is horrified to see Shouta's condition after he is defeated by a monstrous villain. Izuku is surprised to hear Shigaraki Tomura that they are retreating and wonders why they came for nothing. Izuku attempts to save Tsuyu but Shouta uses his last bit of strength to nullify Tomura's Quirk which saves Tsuyu. Izuku focuses his attention on Noumu and attacks him, but this time, Izuku doesn't suffer from recoil. However, the attack barely fazes Noumu. Noumu grabs Izuku's arm, but Tsuyu wraps her tongue around him. Suddenly, All Might appears, much to Izuku's happiness. Izuku is then rescued by All Might along with Minoru and Tsuyu. After seeing All Might in a bad position, Izuku decides to help him, but Katsuki's attack stops him. Izuku then watches the battle between All Might and Noumu. After Noumu's defeat, Shigaraki and Black Mist attempt to finish off All Might, but Izuku intervenes their attempt by running in front of All Might to protect him. Izuku's intervention gives the Heroes enough time to reach the U.S.J, forcing Shigaraki and Black Mist to stop their attempt. After Shigaraki and Black Mist are dealt with by No. 13, Izuku is seen on the ground, crying, as he was unable to do anything to help. However, All Might tells him that is not the case; because if Izuku did not intervene, he would have been dead and thanks him for saving his life. Afterwards, Izuku is taken to Yuuei's Nursery to have his injuries attended to.

Sports Festival Arc
The next day, Izuku listens to Shouta Aizawa's announcement about Yuuei's Sports Festival. After end of the fourth period, Izuku is seen with Ochako Uraraka and Tenya Iida and listens to Ochako's reason for becoming a heroine and her history, to which he replies that with her Quirk, she would be able to build for free. After the discussion, All Might arrives asking Izuku to have lunch with him. In the resting room, Izuku tells All Might that he is adjusting to his Quirk, which pleases All Might. All Might asks Izuku to show the world at the Sport's Festival that he is the next generation's "All Might". However, Izuku is unsure if he is up to the task; All Might assures Izuku that he isn't forcing him and asks him to remember is feelings during his training at the Seaside Park. During the two weeks before the Sports Festival, Izuku trains himself. On the day of the Sports Festival while Class 1-A prepares, Shouto Todoroki approaches Izuku, telling him that he is stronger than him and will defeat him. Izuku admits that Shouto is indeed stronger, but since everyone is giving it their all, Izuku will also give everything he has got. He then walks out to the Sports Festival with his head up high, stating to himself that All Might can retire. Once the Obstacle Course Race begins, Izuku manages to get through the narrow gate while avoiding Shouto's ice. Izuku sees that there are robots in front of him and decides that now is the time to put his head to use, no longer shaking in fear unlike in the Entrance Exam. Izuku grabs a metal plate and severs a robot's head with it by using the robot's momentum. Izuku passes the Fall, but soon sees that he is far behind. Izuku gets on the metal plate and blasts himself towards the lead using the landmine. In the lead, Izuku sees that Katsuki and Shouto are on his tail and blows dust in their eyes with the metal plate, stunning them. Izuku crosses the finish line in first place which allowed him to advance to the second event of the Sports Festival, which is a Human Cavalry Battle. Izuku then finds out that he is worth 10 million points for the Human Cavalry Battle, because he got first place on the Race Course, which horrifies him. Izuku has trouble finding team mates, but then Ochako decides to team up with him, which makes him happy. Izuku then tries to team up with Tenya as he has great synergy with Ochako's Quirk but he politely declines, much to Izuku's disappointment. Mei Hatsume decides to team up with Izuku. Izuku decides on a final team member and chooses Fumikage Tokoyami. The event begins and Izuku's team is attacked by Tetsutetsu and Kyouka's teams, but thanks to Mei's gadgets and Fumikage's Dark Shadow they manage to thwart their attacks. The team takes to the air, but they are suddenly attacked by Katsuki. Fumikage uses his Dark Shadow to block Katsuki's attack and the team lands on the ground. Izuku says that they should have an easier time now, but takes those words back when they are confronted by Shouto and his team. Denki unleashes a large amount of electricity which Fumikage's Dark Shadow protects them from. Izuku and Shouto's team battle with neither team having the advantage. In a surprise twist, Tenya uses his Reciprocating Burst, allowing Shouto to take his 10 million headband in an instant, shocking Izuku. Izuku becomes distressed but thanks to Ochako's encouragement, Izuku remembers that his teammates fates are in his hands and deicdes to attack Shouto with One For All as a symbol of their unity. Izuku uses One For All to blow wind pressure at Shouto which distracts Shouto and allows Izuku to take a headband. However, Izuku took the wrong headband and his team fights Shouto's team for the last ten seconds. The event ends and Izuku becomes depressed. Fumikage reveals that he took a 615 point headband during Izuku's scuffle with Shouto which allows his team to move on to the last event. with Izuku crying in happiness. After the lunch break begins, Izuku is seen with Shouto in private in a hallway, with Izuku asking what is it that he wanted to talk about. Shouto asks whether Izuku is an illegitimate child of All Might or not, but Izuku states that is not the case. Shouto then tells Izuku about him; that he was conceived from a Quirk Marriage so that his father, Endeavor could raise him to be a hero that surpasses All Might; in the past, his mother threw boiling water on him because she despised his left side and that he will surpass Izuku without using his fire power as a way of disavowal-ling his father. Shouto's story leaves Izuku shocked and speechless. Although their goals are different with his goal being trifling compared to Shouto's, Izuku says he cannot let down the people who have helped him get so far and declares that he will defeat Shouto. The final event is a tournament event and Izuku's opponent in the first round is Hitoshi Shinsou. When Hitoshi approaches Izuku, Mashirao warns Izuku not to respond to his provocations. During the recreational events, Mashirao gives Izuku advise on Hitoshi's Quirk. Before the first fight begins, All Might goes to see Izuku and advises him to smile in the face of anxiety and fear. A confident Izuku steps out to the ring to confront Hitoshi. After Hitoshi calls Mashirao an idiot for throwing away the opportunity to participate in the tournament, the fight begins and Izuku, who is angered by Hitoshi's insults, attacks him, but mysteriously stops moving. Izuku finds himself to be completely immobile, but when Hitoshi orders him to go out of bounds and starts walking towards the exit of the ring. Still conscious, he tries to stop himself but finds that his body is moving on its own. As Izuku is about to reach the out of bounds of the ring, he has a hallucination and sees shadowy figures which causes Izuku to attack himself with One For All, allowing him to break free of Hitoshi's control. Izuku hypothesizes that the people he saw were those who had One For All before him. Izuku ignores Hitoshi's provocations and attacks him. After a brief struggle, Izuku throws Hitoshi over his shoulder and rings out Hitoshi, causing Izuku to move on to the second round. Immediately afterwards, Izuku asks Hitoshi about his goal, to which Hitoshi states that he wants to end the discrimination against his Quirk by entering the Heroics Department and becoming a Hero. Before leaving, Hitoshi warns Izuku to be weary of him. Izuku then heads to Recovery Girl's infirmary to have his wound attended to. After his wounds are fixed, Izuku tells All Might about the shadowy figres he saw; All Might hypothesizes that the shadowy figures he saw were the imprints of people who had beared the One For All Quirk. All Might advises Izuku to go and watch the next match. Izuku sits next to Tenya and Ochako who saved a seat for him. When Shouto freezes Hanta, creating a huge ice glacier in the process, Izuku watches in shock and horror. When Shouto unfreezes Hanta with his fire power after winning, Izuku notes that what he saw seemed immensely sad. Izuku then watches the other matches, writing down notes on his opponents, such as counter strategies. Ochako sees this and is impressed with him. Izuku visits Ochako inside the waiting room and offers a strategy against Katsuki. However, Ochako politely turns down his offer, thanking him for offering a strategy for her, claiming she'll be all right and they'll meet at the final match. Izuku, along with Tenya, go to their seats in the stadium to watch the match. Tenya asks Izuku what his counter strategy for Katsuki was, to which Izuku replies that the strategy involved striking fast to gain the advantage. Izuku watches the match and becomes worried when Ochako gets hit by Katsuki's explosions. After Ochako collapses and is declared the loser of the match, Izuku expresses sadness. Izuku leaves his seat and walks away. Along the way, he encounters Katsuki and congratulates him on winning his match. Katsuki accuses Izuku of giving Ochako strategies, but Izuku denies this and boldly states that Ochako used strategies on her own accord, much to Katsuki's anger. Izuku visits Ochako to see if she is alright. Wanting to be by herslef, Izuku leaves the room and walks to his next match. Suddenly, Izuku runs into Endeavor. Endeavor tells Izuku to give Shouto a good matchup. Before Endeavor leaves, Izuku states that he is not All Might and Shouto is not Endeavor. The match begins and Izuku prepares to charge. Shouto strikes first by sending a wave of ice towards Izuku. Izuku flicks his finger and sends a blast of wind pressure towards the incoming ice, destroying it and knocking Shouto back but at the cost of breaking his right hand's middle finger. Izuku sends another blast of wind pressure (breaking another finger in the process) against Shouto which strikes him but Shouto creates ice behind himself to stop himself from being blown out of the ring. Shouto sends another wave of ice against Izuku but Izuku counters by sending another blast of wind pressure to destroy it. Shouto closes in on Izuku and knocks him back and in the process sends ice towards Izuku which freezes his foot. As Shouto begins to attack, the immobilized Izuku uses his left arm to send a huge blast of wind pressure against Shouto to protect himself and in the process, frees him from the ice. Izuku, now that his left arm is broken, is tired and battered from the injuries caused by his Quirk. Shouto decides to end the match but Izuku sends a blast of wind pressure against Shouto's ice with his broken right hand, destroying it. Izuku states that Shouto has a limit to how much generated cold he can take but he can use his left side to solve that problem. Izuku goes on to say to Shouto that he thinks that he can win only using half of his power but he hasn't even been able to land a single scratch on him. Izuku, clenching his broken right hand into a fist, demands that Shouto go to him directly and fight him. An enraged Shouto runs toward Izuku to face him head on. Izuku prepares to use a One For All enhanced punch. Shouto's movement starts to lag due to his frostbite, allowing Izuku to successfully hit Shouto in the stomach with his One For All enhanced punch, knocking Shouto down onto the floor and injuring him. However, Izuku is hit by Shouto's ice in the process of punching him. Shouto manages to get back up and launches another wave of ice against Izuku who realizes that Shouto's ice attacks are becoming weaker. Izuku sends a blast of wind pressure against Shouto, which destroys his ice and knocks him back. Shouto asks Izuku why he is going so far, to which Izuku replies that he wants to live up to his mentor's expectations and become an awesome hero who is able to answer people with a smile. As Izuku hits Shouto, Izuku remarks that everyone is giving it their all to become awesome Heroes and says that while he doesn't understand Shouto's circumstances or resolution, Izuku tells Shouto that he thinks the idea of Shouto becoming Number One without his full strength and that he is doing it to disown someone is a joke. Izuku then hits Shouto successfully again thanks to Shouto's frostbite preventing him from moving. As Shouto gets back up, Izuku tells Shouto that the fire power he has is his power not his father's. Shouto, moved by Izuku's words, activates his fire power and states to Izuku that he too will become a hero, causing Izuku to crack a smile, happy to see his opponent finally giving it his all like himself. Izuku powers up the usage of One For All in his left leg and right arm. Izuku jumps forward using his enhanced One For All left leg to do so, avoiding Shouto's ice and launches a wind pressure blast against Shouto. Izuku's attack, along with Shouto's, collides into Cementoss's cement pillars, which causes a huge shock wave that blasts both Izuku and Shouto. After the dust and smoke clears up, Izuku is seen standing out of bounds. Izuku finally succumbs to his grievous wounds and falls flat onto the ground. Shouto is declared the winner and thus Izuku is eliminated from, the tournament event. Izuku is taken to Reovery Girl's office to have his wounds attended to. Izuku, even though he is weak and in pain from his severe injuries, apologizes to All Might for being unable to live up to his expectations and that all he wanted to do was help Shouto after seeing his sadness. Izuku then asks All Might for his forgiveness. All Might tells Izuku that his match was simply an unfortunate outcome but praises Izuku for helping Shouto with his problem, saying that reaching out and helping people with their personal problems is one of the principal qualities of being a Hero, happy that Izuku has such a quality. Izuku receives surgery from Recovery Girl, which heals his wounds. After the surgery, she warns Izuku to not abuse his Quirk again. Izuku leaves Recovery Girl's room with All Might and they walk down the corridor. Izuku tells All Might that he thinks that someone else should be his successor. However, All Might tells Izuku that he used to be Quirkless just like him, which surprises Izuku. Izuku says to All Might that he never knew about that information causing him to reply that Izuku never asked. All Might tells Izuku that he chose him to be his successor at first due to him being similar to his former self and admits to Izuku that he has surpassed his expectations after seeing Izuku's actions. All Might tells him only he will be able to truly shine with the power of One For All. Having been cheered up by his mentor, Izuku apologizes. Told by All Might to watch the rest of the Sports Festival, he goes to do so. Arriving back to the tournament event, he watches Eijirou and Katsuki's match. Tenya appears and mentions he's glad to see that Izuku's surgery went well and that he will make ample use of his fight with Shouto. After Tenya tells Izuku how he defeated Ibara, Izuku asks if his brother is watching, to which Tenya says that he was but is busy with work. After Katsuki defeats Eijirou, Tenya tells Izuku that he has to leave for his fight. After watching the fight, he becomes saddened that Tenya lost. Izuku, along with Ochako and Tenya, watches the match between Fumikage and Katsuki. Izuku notes that if Katsuki didn't find out about Fumikage's weakness, Fumikage would stand a better chance at winning. After the match between Fumikage and Katsuki ends, Izuku wonders how the match between Katsuki and Shouto will turn out. Both Izuku and Ochako agree with Tenya about watching the final match closely for revenge later. Izuku watches the final match between Katsuki and Shouto. During the match, Izuku yells at Shouto to keep fighting.

Izuku watches the closing ceremony of Yuuei's Sports Festival. After Tenya told him about what happened to his brother and that he had to leave the Sports Festival, Izuku wishes for Tenya to be safe. After the Sports Festival is finished, the next day at his home during breakfast, Izuku and his mother talk to each other with Izuku saying that she almost had a rougher time than she did. Izuku's mother talks to Izuku about his Quirk, saying that it is a risky power and that risk doesn't put her mind at ease but she will keep cheering him on. Izuku realizes that all he has been is been making the people watching over him worry about him. Izuku decides that he needs a method of his own that won't make people worry for him and once he finds that method, it will truly be his starting line. Izuku's mother asks him if he wants to watch the replay of the Sports Festival, to which Izuku says he will later.

Field Training Arc
Two days after the Sports Festival, Izuku is on a train to Yuuei. While on the train, some of the passengers recognize him from the Sports Festival, acknowledging his prowess. At Yuuei, Tenya is running and passes by Izuku, telling him that they should be at least 10 minutes earlier for school. After arriving inside, Tenya tells Izuku that he doesn't have to be worried about his older brother as he will be fine and apologizes for causing him unnecessary concern. In class during the Hero Informatics period, Minoru comments that he was afraid that they wouldn't get any nominations to which Izuku agrees. Afterwards, Class 1-A have to decide on Hero names. Izuku ponders that he came up with Hero names resembling All Might and now that he has inherited his power he cannot take any of his thought up Hero names. Izuku is the last student yet to reveal his Hero name. Izuku reveals his Hero name, causing some of his classmates to comment if he is okay with it, to which Izuku replies that up until now he didn't like it at all. Izuku says, however, that someone came along and changed the meaning of the name making him happy. Izuku reveals his Hero name to be Deku, saying with confidence that Deku will be his Hero name.

After Class 1-A is finished formulating their Hero names, Izuku is given a list of 40 work places he can choose from so that he can train from one of them. Ochako tells Izuku that she plans to train at Battle Hero Gunhead's Office with Izuku noting that it is an office specializing in combat and thought that she wanted to specialize in life saving like No. 13. Ochako replies with an explanation to which Izuku agrees with. She then notes that Izuku is shaking and he replies that he is doing an isometric exercise. After school that day, All Might appears in front of Izuku as he is about to leave class. All Might and Izuku walk along the corridor. All Might says that Izuku received a nomination, much to Izuku's surprise. All Might tells Izuku that the person who nominated him was Gran Torino. All Might explains that Gran Torino was a Pro Hero who taught at Yuuei for one year and that Gran Torino was his homeroom teacher. All Might says that Gran Torino was a close friend of his predecessor, but now he is in retirement. All Might says that Gran Torino knows about the One For All Quirk which is the reason why he must have nominated Izuku. Izuku notes that even All Might is nervous from talking about Gran Torino, wondering how scary the retired Pro Hero was. All Might tells Izuku that while it is his duty to train him, he should select Gran Torino as his work place of choice and go see what he can learn from him. Before leaving, All Might informs Izuku that his Hero costume has been repaired. Thus, Izuku chooses Gran Torino as his work place to train at. On the day of the work place training, Izuku is at the train station with his class so that he can travel to the work place of his choice by train. As Tenya walks to his train, Izuku tells Tenya that if he needs someone to talk to he can talk to him and Ochako (with her nodding in agreement) as they are his friends. Tenya replies that he will and walks away. After the train stops, Izuku arrives near his destination and walks to Gran Torino's home address. Izuku arrives at a dilapidated building. Izuku enters and tries introducing himself but is horrified to find the elderly retired Pro Hero on the floor seemingly dead. Gran Torino suddenly gets up, explaining to the boy that he was carrying a plate of sausages with ketchup on them but fell and got ketchup everywhere. Gran Torino asks the boy his name to which Izuku tells him his name and that he is from Yuuei. However, Gran Torino does not recall nominating him. He suddenly remembers, calling Izuku "Toshinori" in the process, much to Izuku's annoyance. Izuku tries to leave the apartment to speak to All Might on his phone, but Gran Torino asks Izuku to fight him with One For All, saying that he wants to see how well Izuku can handle One For All, wanting him to put his Hero costume on and fight him. Gran Torino once again forgets who Izuku is. Thinking that Gran Torino is playing games with him, Izuku declares to the elderly Hero that he needs to learn how to control his power as soon as possible since All Might is running out of time, telling the elderly Hero that he doesn't have time to be fooling around. Izuku starts leaving, visibly disappointed. Suddenly, Gran Torino jumps and leaps in front of Izuku at an incredible speed, stopping Izuku from leaving. Gran Torino tells Izuku that since Izuku has a goal to learn how to control his power, then he has all the more reason to stay. The elderly Hero asks Izuku to use One For All and fight him.

Izuku puts on his Hero costume (which has not only being repaired but redesigned as well) and faces Gran Torino in a mock battle. However, Izuku is unable to keep up with Gran Torino's incredible jumping speed and is constantly hit. Izuku prepares to use One For All and predicts that Gran Torino will attack him from behind. Izuku's prediction turns out to be correct, allowing Izuku to get into position to hit Gran Torino, but Gran Torino pushes Izuku's arm out of the way. The mock battle ends with Gran Torino telling Izuku that he is too rigid and his awareness is disjointed which are some reasons he is unable to use One For All properly. Gran Torino explains that Izuku's main problem is that thinks One For All is special. Izuku asks Gran Torino to explain what he means, but the elderly Hero tells Izuku to figure that out for himself and goes to eat something. Izuku ponders deeply about his problem with controlling One For All that Gran Torino pointed out. Izuku suddenly figures out what Gran Torino meant; that he has been thinking of One For All as a trump card which has made him "rigid" in its use (unable to use it properly) and that in order to control One For All properly he must be "flexible" (thinking of One For All as a simple body function). Izuku goes to write this crucial discovery down in his notebook, dumbfounded that he didn't realize the problem sooner when it was in front of him all the time. Izuku decides to drill in the repetition of thinking One For All flatly as a simple body function.

During the night on his first day, Izuku steps out of Gran Torino's apartment and goes to an alley. In the alley, Izuku decides to test out his discovery of using One For All as a normal function by jumping over a fence. Izuku uses One For All in his legs while thinking of One For All as a normal body function. However, Izuku fails to jump over the fence. Izuku concludes that he needs to put more strength of One For All into his legs and continues his self training. In the morning, Izuku tells Gran Torino that he put what he discovered as practice but found it to be difficult to do so. Gran Torino replies that it is difficult due to just discovering how to use One For All more effectively and comments that All Might in his younger days used One For All like it was normal which is why All Might's way of guidance is wrong. Izuku becomes fascinated from hearing about All Might's younger days, to which Gran Torino replies that he made All Might spew during a practical training session, commenting that All Might could not handle the power emotionally due to being entrusted to it by a late friend. Izuku asks Gran Torino about All Might's predecessor, much to Gran Torino's surprise. Someone arrives with a delivery for Gran Torino and Izuku goes to fetch the delivery. The delivery turns out to be a new microwave as Gran Torino broke his old microwave during his mock battle with Izuku. Gran Torino decides to have breakfast, telling Izuku to set up the new microwave. After doing so, Izuku heats up his and Gran Torino's breakfast which is taiyaki. Izuku serves Gran Torino his taiyaki, however, the taiyaki is still cold. Izuku is confused as to why the taiyaki is still cold, to which Gran Torino tells Izuku that he didn't put the microwave's plate in properly and, as a result, didn't turn and only a part of the taiyaki was heated. Izuku suddenly realizes the next problem as to why he cannot control One For All; that he has only used One For All on one body part and not using it on his whole body. Izuku activates One For All and sends its power throughout his entire body. Gran Torino asks if Izuku can move while using One For All throughout his body, to which Izuku replies that he is not sure. Gran Torino then asked if he can test whether Izuku can move around while using One For All throughout his body. Which Izuku replies that he can test him.

Gran Torino tells Izuku that if he can move around while having One For All coursing through his body, then he will be drawing a clear line from how he was during the Sports Festival. Gran Torino says that their mock battle will be three minutes for starters. The mock battle begins and Gran Torino hits Izuku from behind, stopping the flow of One For All throughout Izuku's body. Gran Torino attacks Izuku from all directions while Izuku stands helplessly unable to counter. After falling to the ground, Izuku realizes that Gran Torino's speed is too fast for him to counter and decides to regroup. Izuku crawls under the couch and activates One For All throughout his body again. Gran Torino heads towards the couch, but suddenly, Izuku punches the couch away, sending it flying and stopping Gran Torino's attack. Now that One For All is flowing throughout his body, Izuku leaps into the air and nearly manages to hit Gran Torino, however, the elderly Hero manages to dodge in the nick of time. Gran Torino jumps forward and prepares to attack Izuku from behind, but Izuku dodges the elderly Hero's attempt by jumping into the air above him. Izuku, seeing that he is in a perfect position, sends a One For All enhanced punch at Gran Torino. However, the elderly Hero manages to dodge Izuku's attempt. Izuku starts falling down while Gran Torino leaps from the wall and strikes Izuku in his stomach, smacking Izuku down onto the ground and causing One For All to stop it's flow. Gran Torino sees that three minutes are up and ends the mock battle for now. Izuku laments on his lack of ability to keep the activation of One For All throughout his body properly. However, Gran Torino compliments Izuku's intelligence. The elderly Hero notes to himself that Izuku has dramatically changed in such a short space of time and compliments Izuku for being able to graze him (a cut is shown on Gran Torino's face) even though he was using his own power earnestly. Gran Torino states Izuku that he must get used to using One For throughout his body and informs him that they will continue training after breakfast. After breakfast, Izuku continues his training with Gran Torino.

Izuku continues his training in gaining proper control of One For All with Gran Torino for two days. It is the third day at 5:00 PM, Izuku is on the floor injured due to his training. Gran Torino decides to end Izuku's training in One For All, not wanting Izuku to become stale due to fighting him all the time. Izuku protests but Gran Torino denies Izuku's request to continue training in One For All. Gran Torino declares that they will move on to phase two which is workplace experience. Izuku cleans himself up and puts on his Hero costume. Izuku and Gran Torino leave the apartment. Gran Torino tells Izuku that fighting him all the time will make him stale and now wants Izuku to experience fighting in all types and kinds of situations. Gran Torino tells Izuku that they will be going on an exursion and calls for a taxi. In the taxi, Gran Torino explains that highly populated areas are where crime is rife, causing Izuku to ask if they will be taking a train to Shinjuku to which Gran Torino says they will. Izuku realizes that they will be crossing Hosu along they way and begins thinking about Tenya, worried about him and decides to contact him later. The taxi takes Izuku and Gran Torino to the train station where they board a train that will take them to Shinjuku. The train passes Hosu. On the train, Izuku tells Gran Torino that they will arrive at night, to which Gran Torino replies that they will. Gran Torino explains that many villains appear at night and thus they will be able to get experience more easily. Izuku takes out his smartphone and sees that Tenya has read his message but did not reply. Suddenly, the train experiences an emergency stop and a Pro Hero comes crashing into the train, much to Izuku's and Gran Torino's shock. Immediately afterward, a creature that looks similar to Noumu appears. Izuku tries to take action, but Gran Torino orders Izuku to stay put. Gran Torino jumps from his seat and slams himself into the Noumu-like creature, smashing the Noumu-like creature and himself out of the train and into the air above Hosu. Izuku goes to check on Gran Torino but sees that a part of Hosu is ablaze. Izuku wonders what is transpiring and starts worrying about Tenya's safety.

Izuku exits the train and starts running towards Hosu. In Hosu, Izuku witnesses the battle between the Pro Heroes and the two Noumu-like creatures. Izuku is surprised that Tenya isn't at the battle and starts pondering. Izuku quickly figures out that Tenya came to Hosu to find and hunt down the Hero Killer Stain. Izuku leaves the battlefield and searches for Tenya. Izuku manages to find Tenya in an alley where he is on the ground injured and Stain is about to kill him. Izuku activates One For All throughout his body, dashes at great speed, and punches Stain in the face, preventing the Hero Killer from finishing off Tenya. Izuku announces his arrival and declares that he came to save Tenya.

Izuku asks Tenya if he can move, but Tenya tells Izuku that he is immobilized. Stain praises Izuku for his efforts and then threatens Izuku. Izuku plans on what to do; two people are injured and require protection. Izuku decides that he must protect Tenya and the Pro Hero by trying to drive Stain away. Tenya orders Izuku not to get involved since his fight with Stain has nothing to do with him. Izuku responds to Tenya's order, saying that Heroes would not be able to do anything by following Tenya's logic. Izuku puts on a brave face and says that getting involved in other people's business is one of the principal qualities of a Hero, causing Stain to smile. Izuku and Stain begin their battle; Izuku activates One for All Full Cowl throughout his body and Stain charges at the young Hero. Izuku manages to get close to Stain and runs through Stain's legs, evading the Hero Killer's katana and dagger. Stain counters by slashing at Izuku with his katana, but Izuku dodges by jumping into the air and above him. Izuku, above the Hero Killer, uses 5% Detroit Smash on Stain, delivering a powerful blow to Stain's head. Stain, unfazed by Izuku's move, licks his dagger and activates his Quirk, immobilizing Izuku. Stain, impressed with Izuku's actions, decides to spare Izuku but prepares to kill both Tenya and the Pro Hero. Izuku yells at Stain to stop but to no avail. Suddenly, two columns of fire and ice attack Stain but he manages to avoid the attack in the nick of time. Shouto reveals himself and tells Izuku that he texted him more information than usual and came running. Izuku is surprised that Shouto showed up.

Izuku asks Shouto why he is here and is shocked that Shouto is using his fire power. Izuku watches Shouto's battle with Stain; Izuku warns Shouto to not let Stain get his blood. Stain jumps into the air and prepares to stab Shouto with his katana. Izuku realizes that he can move and activates One For All Full Cowl. Izuku, using enhanced jumping speed, appears before Stain and grabs him, attempting to throw him onto the ground. The Hero Killer retaliates by knocking Izuku away with his elbow, causing Izuku to fall onto the ground. Izuku informs Shouto that he could have been released from Stain's Quirk due to either the number of targets thinning the effect, how much blood Stain has ingested or blood types; Stain praises Izuku for figuring out his Quirk. Shouto tells Izuku that avoiding close quarters combat and holding out is their best course of action against Stain with Izuku agreeing with him, telling Shouto that he will draw Stain's attention while he acts as support. Izuku and Shouto team up to battle Stain. Izuku activates One For All Full Cowl and tries to attack the Hero Killer, but Stain slashes at Izuku with his katana, causing Izuku's leg to bleed; Stain licks his katana and activates his Quirk, which paralyzes and immobilizes Izuku. Izuku apologizes to Shouto.

After Tenya breaks Stain's katana and kicks him away as well as in the process save Shouto, Tenya apologizes to Izuku for making him spill unnecessary blood, to which Izuku tells him not to worry. Izuku begins to feel movement within himself and gets up. Izuku activates One For All Full Cowl. Using his enhanced speed, Izuku jumps off Shouto's ice platform and heads towards Stain. Izuku punches Stain in the face with his enhanced might while Tenya attacks Stain with Recipro Extend.

Stain makes one last ditch attempt to kill Tenya but Tenya and Shouto attack him, causing him to lose consciousness. Izuku and Tenya land safely thanks to Shouto's ice ramp. Shouto decides to tie Stain up with Izuku suggesting that they remove his weapons first. Izuku, Shouto, Tenya and the Pro Hero leave the alley with an unconscious Stain in tow. The tired Izuku is carried by the Pro Hero; the Pro Hero laments for failing as a Hero but Izuku says to him that it isn't his fault as Stain is far too powerful when it comes to one-on-one battles. Eventually, Gran Torino arrives and comically propels his foot into Izuku's face, annoyed that Izuku did not stay put. Tenya apologizes to Izuku and Shouto for his unheroic actions, but Izuku claims that he is also sorry for overlooking Tenya's pain even though he is his friend. Suddenly, the winged Noumu-like creature appears and grabs Izuku. Suddenly, Stain awakens, frees himself and defeats the winged Noumu-like creature as well as saves Izuku. Izuku is shocked at Stain's action.

After Endeavor arrives, Izuku tries to break away from Stain. Stain's bandaged mask falls off and reveals his true face, shocking Izuku. Stain walks forward and declares that the only one who is allowed to kill him is All Might, unleashing a bloody malefic aura in the process. Izuku becomes terrified and unable to move due to the fear. After Stain loses consciousness for the last time, Izuku along with Shouto and Tenya are taken to the Hosu General Hospital to have their wounds treated. The next day at Hosu General Hospital, the recuperating Izuku states to Shouto and Tenya that it is a miracle that they are still alive as Stain could probably have killed him if he wanted to. Gran Torino arrives wanting to speak to Izuku but tells Izuku that he has a visitor; the Chief of Hosu Police, Tsurugamae Kenji. Tsurugamae tells Izuku, Shouto and Tenya that the Hero Killer is undergoing treatment. He states that Izuku, Shouto, and Tenya acted on their own without the supervision of their superiors and as such violated the rules, thus they along with their superiors (Gran Torino, Endeavor and Manuel due to their negligence) will be given punishment. Shouto becomes furious that Tsurugamae expected them to follow the rules and let people die as a result. Izuku, Gran Torino and Tenya stop Shouto. However, Tsurugamae states that there were limited witnesses and, as a result, there will not be any punishment for Izuku, Shouto, and Tenya, but they won't be receiving any praise either from the public as the events that occurred yesterday will be covered up. Izuku and his friends thank the Chief of Hosu Police for not punishing them. Tsurugamae states that Izuku along with Shouto and Tenya have a promising future and thanks them for their heroic actions.

Izuku gets a call from Ochako who asks him about his condition. Izuku says he is alright to which Ochako replies that he should get some rest and will talk to him at Yuuei. Afterwards, Izuku is flustered that he talked to a girl on the phone. Izuku returns to the room where Tenya reveals that his left hand's fingers won't move properly. Tenya states that until he becomes a true Hero, he will leave his left hand in its injured state as a reminder of his un-heroic actions during the encounter with the Hero Killer. Izuku thinks that apologizing would have little effect and sees that Tenya realizes his mistake. Izuku says to Tenya that his hand is also like his; Izuku states that they must become stronger together to which Tenya agrees. Shouto apologizes causing Izuku to ask why; Shouto states that whenever he is involved, people's hands go bad. Izuku is surprised that even Shouto can crack a joke, causing the three young Heroes to laugh together.

At the end of the week, workplace training comes to an end. Outside Gran Torino's apartment, Izuku thanks Gran Torino for looking after him; Izuku praises Gran Torino for his training as it has allowed him to become stronger. Gran Torino advises Izuku to maintain his control and composure when using One For All and to not go over the 5% limit. Izuku says that he will comply. Izuku asks Gran Torino a question; why a strong Hero like him isn't known by society. Gran Torino replies that he wasn't interested in the Hero life and that the only reason he became a certified Hero was for a certain goal and nothing else. Gran Torino tells Izuku to ask All Might about the whole story. As Izuku leaves, Gran Torino ponders that both All Might and Izuku are alike; having the same charisma. Gran Torino asks Izuku his name; Izuku thinks than Gran Torino went back to being senile, but realizes what he truly wants. Izuku tells Gran Torino that his name his Deku. Gran Torino smiles at the response. Izuku returns to Yuuei. In Class 1-A, Izuku appears next to Tenya and Shouto. Some of the class comment on Endeavor rescuing them from the Hero Killer, to which Shouto agrees as well as Izuku. After Tenya states his resolve to become a Hero anew, Izuku smiles. Class 1-A has Foundational Hero Studies next; All Might says that their lesson will be a rescue training race through Playing Ground Gamma (a construction site with many densely packed lanes which makes it look like a labyrinth). The class must race through the construction site and to the area in the middle to meet up with All Might. Class 1-A will split into four groups of five for the training lesson. Izuku, along with Ojiro, Tenya, Mina and Hanta are the first group that will partake in the rescue training race. The race begins; Izuku activates One For All Full Cowl and begins maneuvering through the construction site with ease; using his enhanced speed and agility to jump and move through the construction site. Many of Class 1-A are surprised by Izuku's movements. However, while moving towards the area, Izuku accidentally slips, causing him to lose his lead and arrive last. Izuku realizes that he needs to take into consideration where he is jumping in places without stable footholds. All Might approaches Izuku, telling him that he surprised him with his improvement. All Might tells Izuku that after the lesson is finished, he should come to his place because he wants to talk to Izuku about the story of him and One For All.

After Foundational Hero Studies is finished, Izuku heads to the boys' locker room to change into his school uniform. While changing, Izuku wonders why All Might was so serious. Afterwards, Izuku meets with All Might in the Break Room. All Might tells Izuku to lock the door and then apologizes to Izuku for not being at his side during the Hosu incident, to which Izuku replies that he doesn't have to apologize. All Might says that Izuku's blood was ingested by the Hero Killer, reminding Izuku about One For All transfer and inheritance method, causing Izuku to panic (thinking that One For All is in Stain's possession). However, All Might tells Izuku that he still has One For All because One For All won't be transferred to a new recipient unless the user wishes it, thus One For All cannot be forcibly stolen, although it can be forcibly passed on. All Might tells Izuku that One For All is a special Quirk and begins telling izuku One For All's origin. All Might says that One For All is derived from a Quirk that has existed since the beginning. All Might says that long ago during the Quirk phenomenon, society had not adapted to the idea of having Quirks which caused an age of upheaval to arise ; a man possessing a Quirk called All For One stole many Quirks and used his new overwhelming power and influence to gather and unify people under his command. The man used the people he gathered as pawns for his plans which allowed to take over Japan and made himself its evil ruler. Izuku says that he has heard rumors, but this story is not in any textbook causing All Might to reply that underground dealings are never recorded in the textbooks. Izuku asks how this man is related to One For All. All Might says that All For One can grant Quirks, but those who were not able to handle the strain became braindead like Noumu. All Might explains that there were cases for those who did survive the procedure where their Quirks mutated. All Might tells Izuku another story; the man who would eventually become Japan's evil ruler had a younger brother; the man used All For One and forcibly gave his younger brother a Quirk that stockpiles power. However, the younger brother already had a Quirk, a Quirk that can transfer itself to others. The younger brother's Quirks (one that stockpiles power and the other that can transfer itself) merged together and became One For All. All Might notes the irony that justice was born in the bowels of evil. Izuku says that it is impossible for the man who ruled Japan in the distant past to be alive. All Might theorizes that the man stole a Quirk that stopped his aging or a Quirk that granted him immortality. All Might explains that the younger brother, whose Quirks became One For All, fought against his older evil brother but could not defeat him. The younger brother decided to pass on One For All to the next generation so that one day it will accumulate enough power to defeat the older brother's All For One; All Might says that he was finally the successor that defeated the older brother, or so he thought. All Might tells Izuku that the man possessing All For One has returned and is leading the Villain Alliance. All Might finishes his story by saying that One For All is a power that is meant to stop All For One and that Izuku will also have to confront the man. All Might apologizes for giving Izuku so much information. Izuku says that whatever task All Might gives him he will accomplish no matter what as long as All Might is by his side. All Might thanks Izuku. Back in class, Shouta reveals that Class 1-A will be going to a forest lodge during the summer break.

End of Term Test Arc
One week before the end of term test, Izuku encourages Denki and Mina to do their best because he wants to go to the forest lodge with them; Tenya also encourages them while Shouto remarks that if he had just attended classes normally then he would not have such low grades, to which Denki asks Shouto to mind his words.In the lunchroom, Izuku, Tenya, Shouto, Ochako, Tsuyu and Tooru eat at a table, discussing how they will perform in the end of term test. After Itsuka reprimands Neito, she reveals that the exercise test is a battle simulation fighting against robots like the Entrance Exam. Back in class, Izuku reveals the content of the exercise test to the class, much to Denki and Mina's happiness Katsuki confronts Izuku, saying that Izuku is starting to get on his nerves. Ochako wonders if Katsuki is referring to Izuku's movements during the Foundational Hero Studies. Katsuki says to Izuku that he doesn't want the same hollow result like the Sports Festival. Katsuki says that they will determine who is the better man by their grades; Katsuki remarks that he will show the power gap between them and defeat him. Seething, Katsuki says that he will also defeat Shouto as well. Katsuki angrily walks out. On the day of the exercise test, Mr. Principal reveals that Class 1-A will be fighting against Yuuei's teachers in their exercise test. Shouta says that Izuku and Katsuki will be paired together, much to their shock. Izuku and Katsuki become more surprised to learn that they will be facing All Might in combat for their exercise test. All Might tells the duo to cooperate together to defeat him.

All Might, Izuku, and Katsuki get onto a bus and drive to an uninhabited city where the test exercise will take place. All Might, Izuku, and Katsuki arrive in the city. All Might explains the test exercise: Izuku and Katsuki have two options of winning and passing the test exercise; they must either handcuff All Might or one of them must escape from the battlefield. Izuku and Katsuki have to accomplish either fighting to handcuff their opponent or one of them must escape the battlefield in 30 minutes. Izuku notes that this will test their flight or fight decision skills. All Might puts on super compact weighted bracelets to give himself a handicap. The test exercise begins. Katsuki decides to fight All Might in order to handcuff him while Izuku suggests that avoiding the fight with All Might and escaping is a better course of action. Katsuki ignores Izuku's suggestion and begins going toward All Might. Izuku tells Katsuki that the idea of him beating All Might is ludicrous. Katsuki smacks Izuku onto the ground; Katsuki angrily orders him to stop talking while Izuku says that he is talking because he wants them to pass. Izuku and Katsuki get into an argument; Katsuki declares that he can pass the test himself and didn't need Izuku's help in the first place while Izuku says that Katsuki's bad anger is the reason nobody likes him. Suddenly, All Might throws a punch which devastates the area Izuku and Katsuki are in which causes Izuku to fall down.

Izuku is shocked at the level of All Might's (even though he knows that All Might is handicapped and severely weakened to begin with). All Might declares to the duo that he is a villain and collateral damage means nothing to him. All Might charges at the duo. Feeling All Might's pressure, Izuku tells Katsuki that they have no chance of winning and should run away. However, Katsuki refuses to run away. Katsuki uses Stun Grenade against All Might which distracts him. Katsuki charges at All Might, but the Symbol of Peace grabs Katsuki's face, stopping his advance. Katsuki launches a flurry of Explosions against All Might. However, Katsuki's Explosions do not even scratch All Might. All Might slams Katsuki down onto the ground. All Might turns his attention to Izuku who planned on running away. All Might questions Izuku on his decision to escape. Izuku recalls the Hero Killer and activates One For All Full Cowl, wondering why he suddenly recalled the Hero Killer. Izuku jumps into the air, but Katsuki has also jumped into the air; the duo collides into each other as a result. After the recoil, Izuku begs Katsuki to escape with him as they have no chance of winning. Angry, Katsuki still refuses to escape, saying that he will win because that is what a Hero does. Izuku remembers Katsuki's past; that he admired All Might as a Hero because he always won in the end regardless of the situation he was in. Izuku tries to convince Katsuki otherwise but to no avail. Suddenly, All Might appears in the air with a guardrail in his hands; All Might slams the guardrail on Izuku which pins him down to the ground. Then, All Might punches Katsuki in the stomach, greatly injuring him and sending him flying backward. All Might prepares to finish off Katsuki; Katsuki tries to move but to no avail. Suddenly, Izuku activates One For All Full Cowl and breaks free of the guard rail; Izuku charges and punches Katsuki out of harms way. Izuku grabs Katsuki and leaps into an alley to escape from All Might. Izuku tells Katsuki to not say that he would rather lose, asking Katsuki to use his strength before giving up and reminds Katsuki that he is the kid that never gives up on winning. In their childhood, Katsuki manages to beat 4th graders and says that the Number One Hero always wins in the end while Izuku admiringly looks on. All Might chases after Izuku and Katsuki. Suddenly, Katsuki appears from behind and attacks All Might with an Explosion which distracts All Might. However, one of Katsuki's Grenade Bracers is missing. Suddenly, Izuku appears behind All Might with Katsuki's missing Grenade Bracers equipped on him. Katsuki yells at Izuku to commence his attack; Izuku aims the Grenade Bracer at All Might and releases the trigger. Izuku releases the grenade pin and blasts an immense Explosion at All Might at point blank range. After the Explosion is finished, Izuku and Katsuki dash towards the exit.

However, All Might catches up to Izuku and Katsuki and defeats them; All Might holds the injured Izuku in the air with his arm.

A minute ago, Izuku and Katsuki are running towards the escape gate after blasting All Might with an immense explosion. Izuku spots the escape gate and notes that if one of them passes through the escape gate they pass the practical test. While running, Izuku isn't able to see All Might and wonders if he fainted, to which Katsuki admonishes Izuku for thinking that way. Katsuki tells Izuku that if All Might catches up he will launch Izuku using his bracer. Suddenly, All Might appears before the two, asking Katsuki what he plans to do after that, shocking Izuku and Katsuki. Before the young heroes can react, All Might crushes Katsuki's Grenadier Bracers into pieces, telling the duo that the weights are forcing him to use only a minuscule of his strength; All Might proceeds to pin down Katsuki with his foot and dangles Izuku in mid air. Back in the present, Recovery Girl announces that Shouto and Momo are the first team to pass the exam. All Might is surprised to learn that his colleague, Shouta, has been defeated. Izuku tries activating One For All Full Cowl, but All Might stops him and throws him onto the ground. All Might decides to finish off Izuku and Katsuki. Suddenly, Katsuki gets up and launches a big explosion against All Might, which distracts the Symbol of Peace. While All Might is distracted by the light, Katsuki grabs Izuku and throws Izuku towards the escape gate with an Explosion. To prevent Izuku from escaping, All Might uses New Hampshire and blasts himself into Izuku which crushes Izuku due to All Might's great weight and sends him tumbling down. Katsuki chases after All Might; Katsuki tells All Might that the Grenadier Bracers were to help him use his maximum Explosions without risk and admits that he was a fool for thinking that he could win without taking risks. Katsuki uses a huge Explosion against All Might (similar to the Explosion in the Sports Festival) and tells Izuku to escape; Izuku struggles to get up. Katsuki decides to sacrifice himself to hold off All Might so that Izuku has time to escape; Katsuki uses another huge Explosion against All Might. However, although the great Explosions have distracted All Might, the Symbol of Peace is still unscathed. Izuku gets up and prepares to activate One For All Full Cowl so that he can leap towards the escape gate. Not allowing Izuku to make an escape, All Might prepares to attack Izuku but Katsuki intercepts All Might's attempt. Izuku successfully activates One For All Full Cowl and begins his escape while All Might smashes Katsuki into the ground. Izuku sees that Katsuki is in trouble. Despite being greatly injured, Katsuki yells at Izuku to escape and bites All Might's hand. All Might ignores Katsuki's desperate attempt and tells Izuku that he won't allow him to escape. Surprisingly, Izuku does not rush towards the escape gate; instead, Izuku rushes back to help Katsuki. While rushing to help, Izuku remembers All Might's words; that when times are scary and uncertain, you face it all with a smile. Izuku smiles and punches All Might in the face. While All Might is suffering from slight recoil, Izuku grabs Katsuki who has fallen unconscious. Izuku rushes towards the escape gate with Katsuki in tow. All Might shrugs off Izuku's punch and watches him escape. Izuku passes through the escape gate along with the unconscious Katsuki in tow, which allows Izuku and Katsuki to pass the practical test.

After Izuku and Katsuki pass the practical exam, All Might carries them to Recovery Girl's tent to be healed. Recovery Girls scolds All Might for not restraining himself during his battle with Izuku and Katsuki. Recovery Girl asks All Might to take Izuku and Katsuki back to Yuuei to recover. However, a conscious and healed Izuku requests if he can stay and watch the remaining fights as he would like to observe and analyze the other Pro Heroes and his classmates. Recovery Girl allows Izuku to watch the remaining fights. While All Might leaves carrying an unconscious Katsuki in his arms, he notes that Izuku will be extraordinarily strong one day. Izuku and Recovery Girl watch the remaining fights. Recovery Girl comments on Fumikage and notes that he has brittle defense and struggles against numerable opponents, noting that Tsuyu is a person who is usually supportive in combat and can help Fumikage while Fumikage can help her with his strength, to which Izuku agrees with Recovery Girl's assessment. Izuku watches the battle between Denki and Mina against Nedzu and wonders if his classmates will be all right while Recovery Girl comments that Nedzu was toyed with by humans in the past and as a result whenever he is in battle, his true character shows. Izuku and Recovery Girl watch the battle between Kyouka and Kouji against Present Mic; Izuku notes that the challenge revolves around sound and how they will be able to beat a Quirk that cancels out sound. After Kouji and Kyouka pass, Izuku is glad to see that his classmates are passing one by one, but Recovery Girl points out that Minoru is running away, which surprises and intrigues Izuku.

Izuku and Recovery Girl continue watching the practical test, focusing on Minoru and Hanta versus Midnight. After Minoru reveals and executes his plan against Midnight, Recovery Girl and Izuku praise Minoru for his strategy; Izuku is happy to see his friend pass the practical exam.

Back at Yuuei in class, Izuku tries to help Denki, Mina, Rikidou and Eijirou relax by telling them that something will happen that will still allow them to go to the forest lodge; Denki launches a comical tirade at Izuku for trying to jinx them. Izuku learns that he passed the written exam and will go with all his classmates to the forest lodge which will be a boot camp. The class see that there are many items on the list that they don't have. Tooru suggests that Class 1-A go shopping together in order to get the items they need for the boot camp.The next day, most of Class 1-A (except Katsuki and Shouto) go to the Kiyashi Ward Shopping Mall, a shopping center that caters for all needs. Most of Class 1-A split up to go and buy their specific needs, leaving Ochako and Izuku alone. Izuku asks Ochako what she plans on buying and tells her that he plans on buying heavy wrist weights. Ochako says that she requires bug repellent; however, she begins blushing as soon as she looks at Izuku. The blushing Ochako runs off on her own shouting bug repellent, leaving Izuku confused and thinking that Ochako was referring to him as a bug.

Suddenly, a hooded man asks Izuku for his autograph after recognizing him from the Sports Festival. The hooded man puts his arm around Izuku and admires Izuku for running into Stain during the Hosu incident and living to tell the tale, telling Izuku that he is cool. The hooded man is in disbelief that he would meet Izuku again. Izuku breaks into a sweat after realizing who the hooded man was; the hooded man clutches Izuku's neck with his four fingers. The hooded man wonders why they met again, attributing it to destiny or fate and tells Izuku that the last time they met was during the Villain Alliance's attack at the USJ. The hooded man reveals himself to be Tomura Shigaraki. However, this time he doesn't have his signature hand on his face; the unmasked Tomura invites Izuku to have tea with him and smiles wickedly.

Tomura continues holding Izuku's neck and tells him to calm down. Tomura tells Izuku that he just wants to have a chat with him and threatens him with disintegration. Izuku warns Tomura that if he attacks him, then a Hero will jump out of the crowd, but Tomura threatens the safety of the crowd. Relenting, Izuku asks Tomura what he wants to talk about.

Izuku and Tomura sit in a plaza. Tomura explains to Izuku that he hates many things. However, what he truly despises above all is the Hero Killer Stain. Izuku tells Tomura that Stain was one of them, but Tomura reveals that Stain was never apart of the Villain Alliance to begin with and that the media and society merely speculated that Stain was a part of the Villain Alliance. Tomura explains that everything he has done up until now has been undermined by Stain's fame, but the problem he has difficulty understanding is that both of them were simply destroying things they didn't like in order to change the world, but Stain has still gained recognition and fame while he continues to be undermined. Tomura asks Izuku what the difference is between him and Stain.

Izuku answers Tomura's question; Izuku tells Tomura that he doesn't understand or accept his actions, whereas for Stain, he doesn't accept him either but he does understand him. Izuku explains that he understands Stain because both of them were inspired by All Might and started their journeys because of him. Izuku says that Stain didn't destroy because he wanted to, he destroyed in order to try and change the world for the better, according to his ideals. While he doesn't agree with Stain's methods, Izuku respects Stain for living according to his ideals and never giving up on them. Tomura feels exhilarated as he now understands why Stain and Izuku irritate him; its because of All Might. Tomura is annoyed that he had the answer around his fingertips and didn't realize it sooner. Tomura also understands why he hates the current society as well; because they are all living happily and grinning like All Might. Tomura thanks Izuku for chatting with him.

Suddenly, Ochako appears and wonders who Izuku is talking to. Izuku tries to tell Ochako to run. However, Tomura lets go of Izuku and apologizes for interrupting their shopping. Tomura begins leaving and warns Izuku to not give chase. However, Izuku asks Tomura what All For One's ultimate goal is. Tomura gives Izuku his answer; that he doesn't know and doesn't care. Disappearing into the crowd, Tomura tells Izuku to take care of himself because the next time they meet, he will kill him. Ochako calls the Police.

School Trip Arc
After the Police Force close down the mall, Naomasa Tsukauchi takes Izuku to the Police Station to be questioned by him about the event that transpired. At the Police Station, Naomasa questions Izuku about Tomura and their conversation. Although the information Izuku provides is nothing new, Naomasa thanks Izuku for the information and praises Izuku for being level headed during his confrontation with Tomura; The Police investigator is glad with Izuku’s actions because collateral damage was kept to a minimum and no lives were lost. Outside the Police Station, All Might greets Izuku and Naomasa; he apologizes to Izuku for not being there. Thinking about his conversation with Tomura, Izuku asks All Might if there were times when he failed to save someone. All Might tells Izuku that there were many times he couldn’t save someone; All Might modestly admits that he is only human and cannot save everyone. All Might notes that his title, the Symbol of Peace, serves to inspire people and Heroes to play their roles so that more people can be saved. Izuku’s mother arrives to pick Izuku up; Izuku comforts his crying mother, telling her that everything is fine. Izuku and his mother head home. The next day at Yuuei, Shouta informs Class 1-A that the destination for their lodge trip has been changed and the new destination will only be announced on the day of the event. During class, Katsuki comments that Izuku should have tried to stop the villain holding him hostage. The first semester has come to a close and summer break has begun. On the day of the event, Class 1-A boards a bus that will take them to the forest lodge destination. An hour later, Class 1-A’s bus stops for a restroom break. However, Class 1-A notes that Class 1-B isn’t at the rest stop. Suddenly, two females wearing cat-like costumes and a small boy appear; the females excitedly introduce themselves as the professional Hero Team, The Pussycats. Mandalei explains to Class 1-A that they will be staying at the base of a mountain which is a part of their domain; they have three hours to reach the base of the mountain using their Quirks as they please and those who don’t arrive there by 12:30 pm won’t be served lunch. Soon, Class 1-A realize that they have already arrived at their destination and their training camp has already begun with the Pussycats being their supervisors. Some of Class 1-A try to leave, but Pixiebob uses her Quirk to create a landslide of dirt that causes Class 1-A to fall into a forest called Forest of Magic Beasts, which they must traverse to reach their destination. Suddenly, Class 1-A are confronted by a beast; Kouji tries using his Quirk to control the beast but it does not work due to the beast being made out of dirt. Izuku along with Shouto, Tenya and Katsuki mobilize and use their Quirks to destroy the dirt beast. After Izuku, Tenya, Shouto and Katsuki destroy the dirt beast, Class 1-A begins traversing the Forest of Magic Beasts. However, the journey through the forest to the Cabin takes around about 8 hours. Class 1-A arrive at the facility, battered and tired. It is now 5:20 pm in the evening. Pixiebob admits that she thought they would take longer to get to the facility; she praises Class 1-A for figuring out her Earth Beasts quickly and easily. Pixiebob then commends Izuku, Tenya, Shouto and Katsuki for taking quick action against one of her Earth Beasts and concludes that they have experienced action against villains. Izuku then asks about the boy, Kouta and wonders if one of them is his mother. Mandalei explains to Izuku that Kouta is her nephew and asks him to say hello to Class 1-A. Izuku introduces himself to Kouta. Suddenly, Kouta punches Izuku in his crotch and begins walking away. Tenya goes to check on Izuku and admonishes Kouta for his actions.

Class 1-A fetch their luggage from the bus, put it in their rooms and head to the dining hall to have dinner. Class 1-A finish eating their dinner and head to the hot springs for a bath. After Kouta begins falling, Izuku catches him using One For All Full Cowl. Izuku brings the unconscious Kouta to the cabin’s office who has passed out from the fear of falling. In the office, Mandalei thanks Izuku for being there to help him. Izuku notes that Kouta doesn’t like the concept of Heroes and explains that he along with many others grew up in an environment where they wanted to become Heroes; Izuku is surprised that Kouta has a jaded view on Heroes. Mandalei explains that there are people in the world who don’t like Heroes and if Kouta had a normal upbringing, then he would have grown up to idolize Heroes as well. Pixiebob arrives and tells Izuku that Kouta’s parents (who are Mandalei’s cousins) were once Heroes. Pixiebob tells Izuku about Kouta's history and after hearing it, Izuku is reminded of his encounter with Tomura and his similar resentments towards Heroes; Izuku begin to understand that not all people have the same opinion.

The next day at 5:30 AM, Class 1-A are outside the training camp cabin. Shouta greets his students and tells them that they will undergo reinforcement training to strengthen and upgrade their Quirks which will allow Class 1-A to obtain their temporary licenses. Izuku is seen stretching and Tiger asks Izuku to attack him; Izuku uses 5% Detroit Smash but Tiger is able to dodge Izuku’s move effortlessly. Tiger retaliates by punching Izuku and notes that his muscle fibers have not yet teared. Tiger encourages Izuku to push his Quirk to the limit; Izuku gets up and understands that it is now up to him to discipline and train his body in order to use more of One For All’s power. Izuku begins stretching his body vigorously again while Tiger encourages him further. Behind a tree, a silent Kouta is watching. Later that at 4:00 PM, Izuku makes his own curry and while walking back to his class he sees Kouta. Izuku follows Kouta's footprints and finds him; he offers the curry to Kouta after surmising that he didn’t have anything to eat. Kouta harshly tells Izuku that he doesn’t want any of his food or company and demands that he leaves. Kouta finds Izuku’s training along with everyone else’s training to be pathetic because all they want is to brag about their "corny powers". Izuku notes that Kouta’s parents were the water-type Quirk users, the Water Horses; Kouta is infuriated that Izuku knows about his parents and surmises that Mandalay told him. However, Izuku tells Kouta that he knows their names after hearing about them. Izuku offers his condolences, but Kouta doesn’t take heed of it. Kouta expresses his contempt for the current society of Heroes and Villains; he is angry that they use their Quirks for violence just to show off and blames Quirks for being responsible for many deaths. Izuku sees that Kouta does not only have hatred for Heroes, but for Quirks and society itself. Izuku remains silent and becomes sympathetic to Kouta's circumstances. Kouta demands that Izuku leave. However, Izuku tells Kouta a story about his “friend” who was born without a Quirk. Izuku explains that his friend desired to be a Hero, but that dream was impossible without a Quirk and he could not accept the reality for a long time, so he tried many different methods to awaken his Quirk. Izuku tells Kouta the moral of the story; if you reject reality harshly, the only person getting hurt is yourself. Enraged, Kouta orders Izuku to leave and starts threatening him. Izuku apologizes to Kouta for not being able to offer any useful advice and leaves the curry on the ground for him. Izuku walks away. The next day which is the third day of the lodge trip; it is the afternoon and Class 1-A along with Class 1-B are undergoing their Quirk strengthening training. Izuku asks Shouta if any more teachers will come to the lodge; Shouta replies that they only came with the minimum amount of personnel needed to help with Class 1-A and Class 1-B’s training and as such no more teachers will be arriving with Ragdoll noting that they had All Might stay away due to him being a target. Pixiebob changes topic and informs the students that tonight they will be playing a game; a test of courage.

That evening, Class 1-A and 1-B are cooking themselves dinner. Shouto asks Izuku what he wanted to talk to All Might about; Izuku replies that he wanted to talk to him about Kouta. However, Izuku sees that Kouta is not around and surmises that he went back to his secret base. Izuku tells Shouto that Kouta doesn’t like the idea of a superhero society with Quirks and is unable to help him out with words. Izuku asks Shouto for advice. Shouto tells Izuku that words alone will not help Kouta since he would find reasoning from strangers to be pretentious. Shouto advises Izuku to tell him about what Heroes are doing and the help Heroes will bring to humanity. Shouto tells Izuku that he believes that action speaks louder than words. Izuku becomes encouraged from hearing Shouto’s advice and knows Shouto is correct. Class 1-A and 1-B finish dinner. During the test of courage later that night, Spinner and Kenji appear in front of the Pussycats and the remainder of Class 1-A; they attack and knockout Pixiebob. The Pussycats prepare to take action while Izuku realizes that Kouta is alone and defenseless.

Mandalei tells the Class 1-A students to leave and orders Tenya to take the lead. As Tenya leads his fellow classmates away, Izuku tells Tenya to go on ahead as he informs Mandalei about the villains’ objective. At the cliff, Izuku appears and saves Kouta from Muscular's attack. Izuku analyses the situation; his phone is broken as a result of tumbling to the ground from saving Kouta and didn’t tell anyone about his location, thus he doesn’t have any way of communicating for backup. Izuku notes that his top priority is to protect Kouta from the villain since he is the only one standing in the villain’s way. With no other options available, Izuku decides to fight the villain to protect Kouta. Izuku tells Kouta to not worry because he will save him no matter what; Izuku activates One For All Full Cowl and prepares to fight the villain who murdered Kouta’s parents.

Izuku prepares to fight Muscualr while protecting Kouta. The villain takes off his cloak and activates his Quirk. The battle between Izuku and the villain begins. However, Izuku is taken by surprise by Muscular's empowered speed, causing Izuku to be smashed into the rocky wall. Before attacking again, Muscular asks Izuku where Katsuki Bakugou is because targeting Katsuki is his job. The villain attacks again, but Izuku uses his One For All Full Cowl's enhanced speed to evade in the nick of time. Muscular kicks Izuku into the rocky wall again; Izuku lies on the ground injured. Izuku is shocked at the incredible strength and speed of the villain's Quirk. Izuku activates One For All Full Cowl again and punches the villain. Surprisingly, Izuku's enhanced punch doesn't do anything against the villain. Muscular smacks Izuku onto the ground again and reveals that his Quirk is Muscle Augmentation which enables him to augment the muscle fibers that sit beneath his skin, granting him great strength and speed. Muscular considers Izuku an inferior version of him; he torments Izuku for thinking that he can save the child with his hollow strength, mocking Izuku for being unable to back his words up and laughs at the injured Izuku.

Before the villain can attack Kouta, Izuku jumps at Muscular using One For All Full Cowl, telling him that he is the one at fault. Izuku analyzes that the villain's speed surpasses his own and the only slight chance of victory is to close their speed gaps. Izuku punches Muscular with his broken arm, trapping it between the villain's muscle fibers. Muscualr mocks Izuku for thinking that his plan to put them in a position where speed doesn’t matter will work since his inferior strength won't save him. However, Izuku tells Muscular that his job as a Hero is to put his life on the line for the sake of others; with no other choice, Izuku decides to unleash his Quirk's full power: One For All 100%. Izuku uses One For All 100% against the villain, which blasts Muscular with great force into the cliffside and also partially destroys the cliff due to the great impact. Kouta is sent flying away, but Izuku manages to grab Kouta’s shirt with his mouth and drags him back onto the cliff. After apologizing, Izuku decides that they should quickly escape while the villain is incapacitated. However, Muscular is revealed to have used his Muscle Augmentation to reduce the impact of Izuku’s One For All 100%  Smash, although Izuku’s attack did injure the villain. The villain compliments Izuku for his strength while Izuku is in disbelief that the villain is still conscious even though he used the same output of power as All Might. Under stress and unable to think of a plan, Izuku tries talking his way out of this fight by asking the villain about the League of Villains’ goal. Muscular replies that he doesn’t know and that as long as he can let loose with his Quirk and have fun, he doesn’t care. Muscular remembers that they were playing around, but declares that play time is over and decides to get serious. Muscular removes his artificial eye with another one to show that he is being serious.

Izuku orders Kouta to grab on to him; Izuku uses One For All Full Cowl to jump and run away from the villain. Izuku manages to avoid Muscular’s first attack, but barely avoids the villain’s second strike which sends Izuku and Kouta tumbling to the cliff again. The heavily injured Izuku thinks that getting back to the facility where Shouta could erase the villain’s Quirk is a good plan, but starts to doubt the plan due to Muscular’s speed surpassing his own. Izuku quickly forgets about the plan considering the grave circumstances he is in and decides that he has no choice but to defeat Muscular. Izuku tells Kouta to run back to the facility as fast as he can the second he clashes with the villain. Kouta doubts Izuku’s strategy due to his attacks proving to be futile. Izuku uses 100% Detroit Smash against Muscular. Izuku’s 100% Detroit Smash manages to keep the villain at bay; Izuku orders Kouta to escape while he still can but Muscular considers Izuku’s struggle to be in vain. The villain begins overpowering Izuku’s attack and begins pushing him into the ground while demanding blood and death. Izuku is barely able to hold back Muscular’s strength and apologizes to his mother and All Might; Izuku remembers that All Might surpassed his 100% when he fought Noumu. Izuku is shoved into the ground by Muscular. Suddenly, Kouta blasts water at the villain, demanding that he stop. However, the villain says that he will kill Kouta after he is done with Izuku. Furious, Izuku refuses to let the villain kill Kouta and begins pushing back the villain, eventually pushing the villain off him.

Izuku uses 1.000,000% Delaware Detroit Smash against Muscular, a powerful smack with incredible force that smashes Muscular into the cliff. Muscular’s artificial eye pops out and Muscular becomes incapacitated due to the great force of Izuku’s attack. Izuku roars with triumph.

After defeating Muscular, Izuku takes Kouta to safety. While running through the forest, Izuku finds Shouta and asks him to protect Kouta. Before running off to find Mandalay, Shouta asks him to give her a message. Izuku eventually finds Mandalay who is battling Spinner. Izuku activates One For All Full Cowl and shatters Spinner's sword with a leg lunge. Izuku tells Mandalay that Kouta is safe and gives Shouta's message for her to telepath. Izuku also tells Mandalay that one of the villains' goals is targeting Katsuki and ask her to tell everyone that. As Izuku sprints to the forest, Kenji tries to stop him only to be interrupted by Spinner's knife.

Izuku runs through the forest, trying to find Katsuki. Out of nowhere, a giant shadow claw is about to attack Izuku; Izuku tries to defend himself, but his adrenaline begins wearing off and starts to feel great pain which stops him from moving. However, Izuku is saved by Mezou. Mezou decides to carry Izuku on his back after seeing his grievous injuries. Mezou explains to Izuku the situation and as a result, Fumikage has lost control over his Quirk.

Izuku and Mezou turn their attention to Fumikage; Fumikage has been restrained by Dark Shadow, who is now larger and more ferocious due to the power of darkness. The empowered and rampaging Dark Shadow begins taking control of Fumikage’s body. Struggling, Fumikage pleads Izuku and Mezou to run away from him otherwise they will die. Izuku watches in shock.

The rampaging Dark Shadow attacks and destroys several trees around it. Dark Shadow attacks Mezou and Izuku, but Mezou is able to dodge in the nick of time. After maneuvering behind a tree, Mezou sees that Dark Shadow attacks anything that moves or makes, while also noting that Fumikage’s regret and indignation is intensifying Dark Shadow’s control over Fumikage as well as its own power. Fumikage pleads Mezou and Izuku to save the others and forget about him. Mezou informs Izuku that they need light to calm Dark Shadow down so that Fumikage can regain control; he tells Izuku that he can distract Dark Shadow while he runs back to the facility for help; Izuku is indecisive due to wanting to save Katsuki as well. Before Izuku can reply, Dark Shadow strikes at them, but Mezou is able to evade. Seeing that their situation is desperate, Mezou tells Izuku that he can either save Fumikage with him or save Katsuki by himself. Izuku apologizes to Mezou because he cannot make that decision and says that he has a plan.

Mezou and Izuku arrive to where Katsuki and Shouto are along with Dark Shadow in pursuit, with Mezou asking one of them to make light. Before he can explain further, Moonfish senses Mezou and Izuku’s presence and sends one of his teeth to attack them. The rampaging Dark Shadow uses its enormous claw to crush Moonfish, destroying Moonfish’s teeth and knocking him out. Shouto and Katsuki are surprised at what happened. Izuku’s plan was to lure the rampaging Dark Shadow to their location by creating decoys from Mezou’s Replicant Arms which worked. Izuku is happy to see Katsuki, glad that he doesn’t have to save only one of his classmates and sacrifice the other.

After the rampaging Dark Shadow effortlessly defeats Moonfish, Katsuki and Shouto manage to get close to Fumikage and use their Quirks, which calms down Dark Shadow; Dark Shadow reduces in size and retracts back into Fumikage, allowing Fumikage to return to normal. After Fumikage apologizes, Izuku tells Fumikage that their top priority is to protect Katsuki, who is the target of the villains’. Izuku decides that they should escort Katsuki back to the facility and take a shortcut through the forest to do so; Izuku thinks that with the power of Mezou’s scouting capabilities, Shouto’s powerful Quirk and the unrivaled power of Fumikage’s Dark Shadow, escorting Katsuki will be a cinch. However, Katsuki is angry that he needs protecting and refuses their help. The Bakugou Escort Squad (consisting of Mezou, Shouto, Izuku and Fumikage) begin escorting a begrudging Katsuki back to the facility.

The Bakugou Escort Team travel to the facility and come across Ochako and Tsuyu. After seeing that Ochako and Tsuyu are alright, Izuku asks them to join the escort. However, Ochako and Tsuyu wonder why Katsuki isn’t with them. Mezou, Shouto and Izuku turn around only to find that Fumikage and Katsuki are missing. Suddenly, a masked villain known as Compress appears on a tree branch and reveals that he used his “magic” to take Katsuki by turning him into a marble. The masked magician-like villain states that the Heroes don’t deserve someone of Katsuki’s caliber and notes that Katsuki will shine even brighter on the villains’ side. Izuku demands that he give Katsuki back.

Shouto attempts to stop Compress by trying to freeze him with his ice attacks, but Compress's speed allows him to avoid Shouto's attacks. Compress also reveals that he captured Fumikage as well due to being impressed with his victory against the powerful Moonfish and states that he will be very useful, much to Izuku's anger. Compress begins escaping. Izuku refuses to give up and hatches a plan to save Fumikage and Katsuki; Izuku asks Ochako to make him, Shouto and Mezou float, then tells Tsuyu to useher tongue to throw their weightless bodies as hard as she can towards the magician, which will allow the three of them to fly towards the villain with Mezou using his arms to guide their trajectory; once they are in reach of the villain Ochako will deactivate her Quirk. However, Ochako and Shouto see that Izuku’s injuries are severe and think he should stay put. Izuku insists that he goes along which convinces Ochako and Shouto. They execute the plan; Tsuyu wraps her tongue around Izuku, Mezou and Shouto while Ochako uses her Quirk to make them weightless. Tsuyu throws the weightless Izuku, Mezou and Shouto towards the Compress. The three fly at Compress at high speed and reach him. Ochako deactivates her Quirk, causing them to land on Compress and smash him onto the ground. Izuku, Mezou, Shouto and Compress landed right at the Vanguard Action Squad's rendezvous point. After apprehending Compress, Izuku, Shouto and Mezou see that they are right in front of Dabi, Himiko and Twice.

Dabi launches his flames, which hits Izuku and injures his arm. Himiko decides to fight and attacks Izuku, telling him her name and thinks that he should bleed more. Mezou smacks Himiko off Izuku while Shouto deals with Twice. When Mr Compress finds that his pocket is empty, Mezou reveals that he took the marbles Fumikage and Katsuki from Mr Compress, much to Izuku's happiness.

As Izuku and Shouto prepare to backup Mezou, Kurogiri arrives and blocks their path. After Himiko, Twice and the Noumu escape, Mr Compress reveals that the marbles Mezou took are not the captured targets and are decoys instead; the marbles Mezou took transform into ice, which shocks Mezou. Mr Compress removes his mask and sticks out his tongue which has the actual marbles. Izuku prepares to chase after Mr Compress. Suddenly, Mr Compress is hit by Yuuga's Navel Laser, causing him to spit out the marbles. Izuku, Mezou and Shouto rush to grab the marbles, although Izuku starts succumbing to his injuries which causes him to fall to the ground. Mezou and Shouto continue rushing towards the marbles; Mezou grabs the marble containing Fumikage, thus saving him. Shouto is almost in reach of the marble containing Katsuki and nearly grabs it, but Dabi snatches it away before Shouto can grab it.

Mr Compress deactivates his Quirk which frees Fumikage and Katsuki. Dabi and Mr Compress begin teleporting away along with Katsuki. As the teleportation is nearing completion, Izuku gets up and desperately tries to stop Dabi from taking Katsuki but to no avail. Before teleporting with the villains, Katsuki tells Izuku to stay away. Dabi, Mr Compress and the captured Katsuki successfully teleport away. Izuku howls in grief due to being unable to save Katsuki.

Two days later at a hospital near the training camp, Izuku is recovering from his grievous injuries as a result of his battle with Muscular. Class 1-A arrive to see Izuku; Fumikage apologizes for causing trouble for him during the training camp, but Izuku rebuffs and says that it is his fault for causing them trouble. Izuku asks if all of Class 1-A are here; Tenya informs Izuku about the conditions of Tooru, Kyouka and Momo. Izuku despairs about being unable to save Katsuki and becomes depressed that his Quirk amounted to nothing when he needed it the most. However, Eijirou states that they can still save Katsuki and tells him about the transmitter that was planted onto one of the villains by Momo and Yousetsu. Ejirou encourages Izuku to go though with the plan as it will enable him to reach and save Katsuki. Izuku gives a pleading look to Tenya.

However, most of Class 1-A are against the plan. A doctor enters and asks Class 1-A to leave so that he can speak to Izuku privately. As Class 1-A leave the room, Eijirou tells Izuku that they talked with Momo yesterday and have decided that they will rescue Katsuki tonight, inviting him to join them. After Eijirou leaves, the doctor informs Izuku that his arms have been healed but his ligaments have started to deteriorate; he warns Izuku that if he keeps getting the same injuries, he will never be able to use his arms again. The doctor tells Izuku that he is being discharged and hands Izuku a letter from Kouta.

Later that night in front of the hospital, Izuku arrives to see Eijirou and Shouto along with Momo. However, Tenya arrives who is angry that they are about to repeat the same mistake he made at Hosu. Although Izuku understands that breaking the rules is against the law, Tenya punches Izuku in the face. Tenya is frustrated that they are not taking his feelings and worry into consideration and doesn't want them to land up with serious injuries. Shouto and Eijirou state that their rescue mission will be covert only with no combat involved, to which Momo says that she will ensure that there is no combat involved. Izuku tells Tenya that he must save Katsuki. Seeing that they are determined and resolute, Tenya decides to accompany them.

Before leaving to rescue Katsuki, Izuku phones his mother and informs her about his wounds. Izuku’s mother asks if he can stop going to Yuuei, to which Izuku replies that he is All Might’s successor and as the successor he cannot sit back and relax. Izuku ends the call. Izuku returns to Eijirou, Shouto, Tenya and Momo. Tenya apologizes for punching him. Momo and Tenya remind Izuku, Shouto and Eijirou that they are going with them to ensure that they do not engage in combat.

The group boards a train to a place called Kamino Ward a place in Yokohama City in the Kanagawa Prefecture. At Kamino Ward, Izuku along with Shouto, Eijirou, Momo and Tenya put on disguises to make infiltration easier as well as to prevent the League of Villains from recognizing them.The disguised group exit the clothing shop and Izuku sees a video clip of the public apology issued by Yuuei. After watching the clip, Izuku sees that Yuuei are being treated like criminals and that the mood of the people watching has become heavy against Yuuei.

Quirk and Abilities
One For All (ワン・フォー・オール Wan fō ōru): Izuku's Quirk grants him superhuman strength and greatly enhanced agility. Izuku has yet to demonstrate superhuman speed, enhanced reflexes, and high durability on the level of All Might. He has shown that he has a type of mental connection to the previous users of One For All. As of now, Izuku has shown to be able to properly control a small percentage of One For All's power, using that small percentage to slightly enhance his strength, speed and agility.

Moves

 * Detroit Smash (デトロイトスマッシュ Detoroito Sumasshu): The same as All Might's move, except Izuku does it in the form of an uppercut.
 * 5% Detroit Smash (5 パーセント デトロイトスマッシュ 5 Pāsento Detoroito Sumasshu): Izuku activates One for All Full Cowl, then jumps into the air, and delivers an enhanced downward punch to the opponent.
 * 100% Detroit Smash (100 パーセント デトロイトスマッシュ 100 Pāsento Detoroito Sumasshu): Izuku activates One For All 100% and delivers a straightforward punch to the opponent.
 * Delaware Smash (デラウエアスマッュ Derauea Sumasshu): Izuku flicks his finger to create a powerful shock wave. Doing this often fractures said finger, limiting the time he can use this move up to 10 times.
 * 1,000,000% Delaware Detroit Smash (1000000 パーセント デトロイトデラウエアスマッュ1000000 Pāsento Detoroito  Derauea Sumasshu): Izuku's exceeds 100% and delivers a powerful smack with incredible force that blasts the opponent away. This move was powerful enough to overpower the villain's Muscle Augmentation and incapacitate him.


 * One For All Full Cowl (ワン・フォー・オール フルカウル Wan fō Ōru Furukauru): This technique allows Izuku to activate 5% of One For All throughout his body, letting the power course and flow through him instead of concentrating it in one location. Activating this technique gives him slightly enhanced strength, speed, and agility. It also prevents him from breaking his bones whenever he uses One For All.
 * One For All 100%: A technique that allows Izuku to activate the full power of One For All throughout his body.

Keen Intellect: Izuku has proven to be exceptionally intelligent on many occasions. He has displayed keen skills of observation and analysis. It is usually his intelligence that has helped him more than his Quirk. He was able to formulate a strategy that helped him along with Tsuyu and Minoru to escape the villains at the flood zone in the USJ. Izuku also has extensive knowledge on Pro Heroes and their Quirks as well. His intelligence has allowed him to figure out One For All's mechanisms, allowing him to utilize the Quirk more efficiently in a short space of time. Gran Torino even complimented Izuku's intelligence, saying that Izuku is the type of person who thinks before he acts.

Equipment and Weapons

 * Metal Sheet (Sports Festival) - This was used to attack the robots in the Sports Festival. Also, he used it to slam hidden mines to propel himself forward.
 * Jet Pack (Sports Festival) - This equipment was given to Izuku by Mei during the second part of the Sports Festival.
 * Grenadier Bracer (Combat Exam Arc) - Izuku borrowed one of Katsuki's Grenadier Bracers as part of their team attack against All Might.

Battles
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Entrance Exam Arc

 * Izuku Midoriya & All Might vs. Villain: Lose (Win for All Might.)

Battle Trial Arc

 * Katsuki Bakugou vs. Izuku Midoriya: Win

Ultimate Space & Jams Arc

 * Izuku Midoriya, Tsuyu Asui & Minoru Mineta vs. Villains: Win
 * All Might, Izuku Midoriya, Katsuki Bakugou, Shouto Todoroki & Eijirou Kirishima vs. Villain Alliance: Win

Sports Festival Arc

 * Izuku Midoriya vs. Hitoshi Shinsou: Win
 * Izuku Midoriya vs Shouto Todoroki: Lose

Field Training Arc

 * Tenya Iida & Izuku Midoriya vs. Stain: Lose
 * Tenya Iida, Izuku Midoriya & Shouto Todoroki vs. Stain: Win

End of Term Test Arc

 * Izuku Midoriya & Katsuki Bakugou vs. All Might: Win (Escaped)

School Trip Arc
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 * Izuku Midoriya and Kouta vs. Muscular: Win

All Might
Izuku has always admired All Might since he was a small child and wanted to be just like him. After earning All Might's respect after he just ran toward the slime monster trying to save Katsuki, a mentor-student relationship bloomed between them and All Might choose him as his successor as the "new" All Might. While All Might's training on Izuku was rough, the latter continued to give it his all. They grew closer as All Might listened to his resolve of training more than he has to become a great hero, impressing the hero.

All Might is his confidante, mentor, friend in and out of school and they share a mutual respect for each other's heroism ideals. Izuku's admiration and respect for All Might is so great that he had trouble trying to attack All Might during the End of Term Test and when he had no choice but to attack All Might with Katsuki's Grenade Bracer, Izuku apologized.

Shouta Aizawa
Shouta treated Izuku with disrespect at first because he saw through his "Quirk" saying he doesn't have what it takes to be a Hero. After seeing his potential in fights against Katsuki and Shouto, and even against villains, he believes in Izuku's true power and abilities. He's also been shown to be a little stubborn about Izuku's injuries when he broke his arms twice.

Kango Kyouyu
Kango is one of the few people who know about Izuku's Quirk. Often, she scolds at Izuku for using his Quirk dangerously.

Katsuki Bakugou
Izuku and Katsuki have known each other since they were very young, but they cannot be considered friends. Upon being bullied by Katsuki his whole childhood and hating his guts, Izuku began to admire everything about him, as Katsuki had everything that he didn't. Ever since the end of the Battle Trial Arc, Izuku has not spoken to Katsuki on friendly terms due to Katsuki considering Izuku his arch-rival. Despite Katsuki's antagonism towards Izuku, Izuku still has respect for Katsuki and is still shown to care for Katsuki, as shown when Katsuki is captured by the Vanguard Action Squad, Izuku uses all his strength in an attempt to save Katsuki and spiraled into despair after he failed to do so.

Ochako Uraraka
Ochako was the first new person Izuku interacted with when he first came to Yuuei. Izuku has a great friendship and camaraderie with Ochako; they get along very well and their discussions are always bright and friendly. It is implied that Izuku has a crush on Ochako, as he constantly blushes when ever she is with or near him and even started to like his once a demeaning nickname "Deku" when she said she liked the nickname. At the Sports Festival, Izuku was moved to tears to see that Ochako would team up with him even though he is worth a huge amount of points. Before Ochako's battle with Katsuki, Izuku offered to give her a strategy against Katsuki. When Katsuki accused Izuku of helping Ochako strategize against him, Izuku defended Ochako, saying that the strategy she used against him during their match was her doing.

Tenya Iida
Izuku first thought that Tenya was a scary guy and that they wouldn't get along together, but as he got to know him better, he found out he was a friendly guy and they ended up becoming friends. Izuku and Tenya are usually friendly with each other. However, sometimes their friendship slightly falters such as when Izuku criticized Tenya for seeking revenge against Stain and Tenya punching Izuku in the face for acting recklessly by attempting to save Katsuki. Despite this, Izuku and Tenya's friendship have rebounded back many times despite these mishaps, mainly because they are only concerned for each other's well being. They are usually seen together having friendly discussions. Izuku resigned as Class President and named his successor Tenya, knowing that he has better leadership qualities than him. After Tenya was defeated by Shouto, Izuku was saddened to see his friend lose. Since Izuku knew that Tenya has a grudge against Stain, Izuku tries to save Tenya from his death. While recuperating at Hosu General Hospital, both Izuku and Tenya resolve to become stronger together.

Tsuyu Asui
Tsuyu respects Midoriya for his heroic actions as well as his victory against Katsuki. During the Rescue Trial Arc, she was receptive of Midoriya's plan to subdue the swimming villains, showing not only respect, but also trust. After Shouto defeated Izuku in the Sports Festival, Tsuyu went to Recovery Girl's office to see if Izuku was fine or not.

Shouto Todoroki
Shouto saw Izuku as his arch rival due to him having connections with All Might (a person with whom his father has a major rivalry). Izuku, on the other hand, has a lot of respect for Shouto, admitting that Shouto is far stronger than him. After hearing Shouto's tragic backstory and seeing his sadness, Izuku started to show sympathy for Shouto's pain and resolved to help Shouto overcome his dark past by getting him to use his fire power, telling Shouto that the fire power belongs to him and not his father. Although Izuku lost to Shouto while trying to help him, Izuku's actions did have an impact on Shouto, as he has stopped rejecting his fire power. After the battle with Stain, Izuku and Shouto are on friendlier terms with each other.

Kouta
Izuku did not get along with Kouta due to their different circumstances and ideals. However, after Izuku saved Kouta from the Muscle Augmentation villain, Kouta respects Izuku more. At first, Kouta despised Izuku and Class 1-A for always working so hard to better themselves against fighting villains. Because of his past, he ignored anything that dealt with Heroes and Villains, and even Quirks altogether. Izuku, after finding his secret hideout, tried talking to him only to have him snap at him because he's never gone through what he has. Because of how similar Kouta was to him, both being "Quirk-less" (Izuku not being born with a Quirk and Kouta refusing to use his Quirk), Izuku took it upon himself to save Kouta from the Muscle Augmentation villain at all costs, even going past his Quirk's limitations. During the battle, Kouta used his Quirk out of desperation in an attempt to help Izuku. After the battle, he tells Kouta that his parents died to protect everyone and says he risked his life for him because he wanted his acknowledgement as a Hero. Izuku then tells Kouta to help save everyone just as he helped save him.

Stain
Stain respects Izuku's reasoning to be a Hero and see worth in letting Izuku live. Izuku, on the other hand, tries to save Tenya from Stain. Also, when Izuku was captured by on of the Noumu-like creatures, Stain was the one who saved him. While Izuku does not approve of Stain's methods, Izuku respects Stain for living according to his ideals and never giving up on achieving his ideal world.

Trivia

 * Izuku's nickname, "Deku", was given to him by Katsuki when they were little. "Deku" is another reading of his name 出久, and Bakugou uses it to mock Izuku, as "Deku" can mean "the one who can't achieve/do anything". Later, Ochako finds the nickname very inspiring because "Deku" gives off a feeling of "I can do it".
 * Izuku is student no.18 in Class 1-A.
 * Izuku ranked 7th during the Entrance Exam and last for the Quirk Apprehension Test.
 * In the First Popularity Poll, Izuku ranked 1st, which currently makes him the most popular character in Boku no Hero Academia.
 * Izuku's favorite food is Katsudon.
 * Izuku has a tendency to ramble his thoughts out loud.
 * The cover of chapter six that details Izuku's body jokingly state that his tear glands "give his sweat glands a run for their money". The chapters of the manga show this to be true, and his tears are strong enough to push people.
 * Izuku was first planned as an adult.
 * Izuku's blood type is O.
 * Izuku shares his birthday with Ichigo Kurosaki from Bleach, another Weekly Shōnen Jump series.

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