Dabi watches a public broadcast about the news of the Hero Killer's capture. Inspired by Stain's ideology, Dabi decides to move towards the organization that was widely believed to harbor Stain's cause: the League of Villains.
Giran brings Dabi and Himiko Toga to the League of Villains hideout. Dabi comments that the group's leader, Tomura Shigaraki, is gross looking. Tomura is displeased with the recruits and immediately asks Kurogiri to remove them. Kurogiri refuses and Giran introduces Dabi as a criminal who has not done any flashy crimes but follows Stain's ideology. Dabi says he is unsure about the league's motivations and asks if they would really let a crazy girl like Himiko join.
Tomura remarks that she introduced herself and asks Dabi for his name, but he says he will only reveal it at a later time. Dabi goes on to say he will make the Hero Killer's will a reality. Tomura becomes wildly irritated by Dabi and Himiko's comments about Stain, enough so to attack them. Dabi and Himiko prepare to defend themselves, but Kurogiri steps in and uses his Quirk to stop them from coming to blows. Tomura storms off as Dabi complains about his attitude. Kurogiri asks Giran and the recruits to wait for a proper answer at a later date.
Dabi is eventually recruited into the League of Villains and assigned to lead a team of elite villains called the Vanguard Action Squad. Tomura acquires equipment for the team and has them pick it up at an unknown warehouse location.
Himiko announces there is enough gear for everyone and they should bring it along on their mission. Muscular adds they need to hurry up, but Mustard disagrees because the team has been ordered not to rush or do anything too flashy. Dabi agrees and says that Tomura acted like a brat and attacking when they first met, but now he's suddenly taking charge. Dabi proclaims that their mission will be a warning shot that will tear down false heroes from their shining pedestals and drag them back to earth in order to create a new future for the world.
The next day, Dabi and six other villains secretly arrive on the Wild, Wild Pussycats forest reserve where U.A. High School students are training. The Vanguard Action squad observes the campsite from a high vantage point. The members of the group start to argue about their next move, so Dabi tells them all to shut up. He goes on to say that Tomura was foolish for trying to attack the U.S.J. with a band of low-level thugs and that it's much better to use a small group of elites. Dabi announces the League of Villain's first task is to strip away the student's sense of security.
The Vanguard Action Squad begins their assault the next evening. Dabi uses his quirk to set the Beast's Forest ablaze in blue fire. Dabi believes the time has come for the Vanguard Action Squad to tear the false heroes down from their shining pedestals.
Dabi keeps the fire going while the other villains search for Katsuki Bakugo, who is their target. Twice makes clones of Dabi so he can distract the U.A. teachers. Dabi waits outside of the base camp building and surprise attacks Eraser Head on his way out. He blasts Eraser Head with an explosion of blue flames, but the hero evades and erases Dabi's Quirk by looking at him. He overpowers the villain and pins him to the ground before interrogating him for information about his allies. Dabi refuses to comply and gets free once a few of the students arrive. Eraser Head goes to restrain Dabi again, but the clone disappears as Dabi taunts the latter, leaving Eraser Head shocked.
Dabi tells Twice the clone was defeated too fast. Twice rebuffs Dabi's claim. He comically argues until Dabi orders him to make another clone to keep the Pro-Heroes at bay. The clone attacks the base camp again. He blasts one of the classrooms and is quickly restrained by the Blood Hero: Vlad King. The clone goads Vlad King until Eraser Head arrives and destroys it.
Mr. Compress is able to successfully capture Katsuki, compressing him into a marble along Fumikage Tokoyami, and radios the team to rendezvous. Twice complains and Dabi argues that Mr. Compress did a fine job. Dabi seems to notice Yuga Aoyama hiding behind a bush, but before he is able to act, Twice reminds him to call back Nomu. Twice had to remind Dabi to unleash Nomu on the students earlier. Dabi remembers the Nomu was designed for him and will only react to his voice. He then signals for the Nomu while he and Twice walk to the meeting spot.
Dabi and Twice meet Himiko first. Dabi asks how her mission went and Himiko replies that she was only able to collect one sample of blood. As Twice and Himiko begin to banter back and forth, Dabi tells them both to shut up and notices a trio of students tackling Mr. Compress out of mid-air: Izuku Midoriya, Shoto Todoroki and Mezo Shoji.
Dabi, unfazed by this entrance, orders Mr. Compress to move aside and he does so by using his compressing Quirk on himself. Dabi throws a fireball that burns Mezo and Izuku. The other villains attack the students and Mr. Compress motions to give the captured students to Dabi. He meant to keep their compressed marble bodies inside his pocket, but Mezo stole them.
Kurogiri arrives to evacuate the villains as their goal is achieved. Dabi refuses to leave without Katsuki, but Mr. Compress reassures him he was hiding the real marbles the entire time. Hiding from the shadows, Yuga shoots Mr. Compress in the face and he drops the marbles out of his mouth. Mezo is able to retrieve Fumikage, but Dabi secures Katsuki's marble before Shoto reaches it. Dabi taunts Shoto's attempt as he commands Mr. Compress to confirm Katsuki's body. Katsuki reverts to his normal body with Dabi's hand around his neck. Dabi calls checkmate and the villains disappear within the warp-gate.
Having completed their mission, Dabi and the Vanguard Action Squad return to the hideout. They restrain Katsuki and bring him before Tomura. 
Tomura tells Katsuki about the League of Villain's goal to reform hero society. Then he asks Dabi to remove his restraints. Dabi argues that Katsuki will fight, but Tomura asks him to do it anyway. Dabi orders Twice to remove the bonds and then Katsuki immediately blasts Tomura in the face with an explosion. Katsuki tells the League he'll never join them because he wants to be a Hero like All Might. 
Magne comments that Katsuki is clever for realizing his own value to the villains. Dabi argues that he's a fool for fighting. Tomura puts the fallen hands back on and requests that nobody harm Katsuki. Tomura asks All For One to lend him his power and then orders Compress to restrain Katsuki. 
The League of Villains is interrupted by the unexpected arrival of what sounds to be a pizza delivery. Then All Might suddenly bursts through the opposite wall with Kamui Woods and the latter restrains all the villains with his Lacquered Chain Prison technique. Dabi attempts to free himself from the wooden binds by igniting his flames, however Gran Torino flies in and stops Dabi by knocking him unconscious with a swift kick to the head. 
Dabi and the other villains are saved when All For One warps them to the destroyed Nomu Factory.  All For One activates the Quirk of the unconscious Kurogiri and orders the League of Villains to capture Katsuki and retreat. Mr. Compress uses his Quirk to compress Dabi's body into a marble. All of the villains are forced to flee the battlefield when All For One uses Magne's Quirk to force them into the Warp Gate.
Three weeks following the battle in Kamino Ward, the League of Villains members separate in order to conceal themselves and recruit like-minded individuals to their cause. Dabi enters an alleyway, hoping to find recruits there.
The low life thugs threaten to kill Dabi and he recognizes that they're nothing but weak thugs. He tells them to get out of his way and then burns them all to death with his Quirk. Dabi mocks them by stating they're garbage and the least they can do is become kindling for his flames. 
While he was busy with these matters, Tomura and other members of the League of Villain have a clandestine encounter with the current leader of the Shie Hassaikai, Overhaul. A series of discrepancies and differences of opinions generate a confrontation between them that ends with the death of Magne and Mr. Compress losing an arm. Despite this, Dabi is present at the meeting in which Tomura informs them that they will form an alliance with Shie Hassaikai. Dabi says nothing, but Twice and Himiko are unhappy with the decision, but Tomura assures them that it's for the good of the League, and the time when they can avenge Magne and compress will come.
A few days later, the Shie Hassaikai Compound is assaulted by heroes, and with the help of Twice and Himiko, they manage to defeat the entire organization and arrest its members. During the aftermath of the Shie Hassaikai Raid, Dabi accompanies Tomura, Spinner, and Mr. Compress on their mission to confront the defeated Overhaul. Tomura claims that his plan is as simple as a game of Shogi. Dabi argues that Shogi isn't that simple.
The League of Villains engages a Police convoy carrying Overhaul inside one of the trucks while he's restrained and strapped to a medical bed. Dabi tells Spinner to stop driving erratically because it's making him carsick. He maintains his composure and attacks the convoy with a large flamethrower stream, prompting the Sand Hero: Snatch to appear from within one of the trucks.
Dabi recognizes Snatch as a powerful Pro Hero while Tomura fights him. He also notes that Tomura's infamy has gotten him way too famous. Tomura crashes several of the trucks into each other while Dabi confronts Snatch himself. He taunts Snatch for being a Hero that always needs to jump in to rescue others. Snatch recognizes Dabi as the villain associated with a string of murders where the corpses were burned. Dabi admits that he's excited to hear about his notoriety.Snatch attacks Dabi with a sand tiger move and Dabi counters with a large blast of fire. While Snatch is distracted, Mr. Compress uses his Quirk to trap him inside a marble with Dabi's flames. Mr. Compress accidentally burns himself and then asks Dabi if Snatch's sand will burn. Dabi believes Snatch can only transform his upper body into the sand and will likely die while compressed.
Tomura exacts his revenge on Overhaul by destroying his arms. Spinner warns his allies that police reinforcements will arrive soon. Dabi, Mr. Compress, and Tomura walk back towards the truck as the flames from their destruction burn in the background.Ujiko's High-End Nomu. At Hidamari Kindergarten on the same day as the Hero Billboard Chart JP release, Dabi tells the High-End "Hood" that it is the first intelligent Nomu and he expects good results. Hood attacks the No. 1 & 2 Pro Heroes: Endeavor and Hawks. Dabi watches from within the city limits when Endeavor narrowly wins their fight. With the two Pro Heroes injured from their fight and before they can request for help, Dabi confronts them himself and greets Endeavor. 
Dabi confronts the two heroes and traps them within a wall of fire. Endeavor recognizes Dabi as the villain who murdered Snatch and Dabi claims he has no idea who he's talking about. Dabi tells Endeavor he wants to talk while they have the opportunity. Hawks stands up to Dabi and the latter claims he wouldn't try and defeat the two top heroes alone. Then Dabi says that they're both on death's doorstep and decides to attack, that is when Mirko interrupts the latter and attacks Dabi from above. Her fearsome stomp keeps him at bay, making Dabi realize his disadvantage. Dabi then calls Ujiko to use the Warping Quirk to warp him away. Before he leaves, Dabi calls Endeavor by his real name and tells him not to die.
Afterward, Dabi meets with Hawks to discuss Hood's attack. Hawks is upset with Dabi for not keeping to their original plan and holds a blade to his neck. Unfazed, Dabi replies that Hawks wasn't supposed to bring someone as powerful as Endeavor. He questions the lack of casualties from the battle, insisting that a villain sympathizer wouldn't have acted in such a heroic way.
Hawks explains he has to keep a Heroic appearance to the public to make himself more useful to the League of Villains. Understanding, Dabi walks away and tells Hawks he can't meet their leader yet, but he'll contact him again in the future.
While walking towards the harbor, Dabi recalls Snatch and is seemingly moved by the hero's last words to him. Dabi says thinking about all the families he's affected has nearly driven him crazy. He wipes some blood from the patch underneath his eye as if he was crying.
Prior to the Hero Billboard JP, the League of Villains has seen better days. They're barely scraping by with no funds and have resorted to stealing from other criminal groups and living in a run downed building. Rather than partaking in theft, Dabi spends his time trying to recruit new members. He returns to the filthy hideout and berates his allies for sitting around doing nothing.
Twice replies that Dabi just burns everyone he meets. Dabi claims he burns them because they're ambition less trash and Himiko taunts him for being a poor judge of character. Spinner confronts Tomura over the state of the League and admits he's only here to fill his empty heart with a new purpose. Dabi taunts him by saying he's just a hollow cosplayer of Stain.
They're interrupted by an intense rumbling that brings the villains outside. The League of Villains come face to face with a giant claiming its searching for All For One's successor. Dabi questions the identity of this titan and Tomura claims he's the secret weapon Kurogiri got captured trying to retrieve. The giant quickly overpowers the League, while the voice of All For One's doctor plays from the beast's radio which hangs around his neck. 
The Doctor explains that the giant is named Gigantomachia and he is All For One's ex-bodyguard. Gigantomachia went into hiding before All For One's defeat and the Doctor claims this meeting was all apart of his plan. Dabi replies that the big guy isn't exactly a generous gift and lights up his flames. Dabi blasts Gigantomachia in blue flames. Shocked, Dabi watches as the giant brushes off the fire as Himiko tells Dabi his attack didn't work.
A recording of All For One's voice soothes Gigantomachia and calms him down. The Doctor warps the League to his lair using the warping Quirk from Kamino. Dabi immediately notices the Nomu housed in the lab. The Doctor commends Dabi's sharp eye and introduces himself as Daruma Ujiko. Annoyed, Dabi asks why the League is at the lair and the Doctor replies that they must prove themselves if they desire his support. 
In response, Tomura explains his past and why he desires to destroy everything. Bored, Dabi stands by with the others who don't appear to quite understand Tomura's distortion. The Doctor accepts Tomura but he will not fully support the League until they defeat Gigantomachia. Dabi refuses to help because he wants to put more time into recruiting a potential ally. Tomura says he's excited to see who he brings and the Doctor tells Dabi he can help test a High-End for him.
Following this, the High-End Hood attack on Edneavor and Hawks takes place. Almost a month and a half later, Dabi contacts Haws by phone call, and gives the number 2 hero one last job to prove himself to the League: he must kill a specific person.
A few days after this, while Dabi hides out on the border between Iwe and Shiga, Re-Destro, leader and great commander of the Meta Liberation Army, contacts Tomura. Re-Destro informs him that they captured and tortured his broker Giran in order to find them, as the MLA considers Tomura and his allies a threat to their plans. For this reason, he declares war on the League, and informs them that if they do not go to Deika Ciry to confront them, they will use their influence so that they have to face a force of Heroes.Tomura accepts the challenge and orders the Doctor to warp everyone to Deika City, where the confrontation must take place. Dabi is also warped to Deika City and regroups with the others for a war against the Meta Liberation Army. Dabi's annoyed they dragged him into their mission to recue Giran and this angers Twice. Himiko notices someone approaching the group and Dabi readies his flames. It turns out to be an escort, the Pro Hero Slidin' Go.
Slidin' Go leads the villains through the seemingly abandoned city where they eventually meet with Koku Hanabata and Chitose Kizuki, two top executives of the army. Koku begins the Liberation Army's Revival Celebration and dozens of citizens suddenly ambush the villains. 
Dabi appears to avoid direct combat while dodging various Quirks aimed toward the League. Spinner comments that no matter how many warriors are defeated, they just keep coming in waves. Dabi replies that Spinner hasn't defeated a single one yet. Koku Hanabata uses his campaign van to announce that Chitose has perished at the hands of Himiko. The warriors are enraged and swarm at Tomura, who counterattacks by killing them all with a single swipe of his hand.
Impressed, Dabi realizes it's about time he got serious about fighting when suddenly a hooded man tries to crush him using two giant ice gauntlets. Dabi avoids it and admits that he's gotten stronger and now he can tell at a glance this new bruiser is tough too. Geten asks Dabi why he hasn't used his wide range of flames to attack yet, suggesting something might be wrong with his abilities.
Dabi smirks and counterattacks with a wave of flames that melts his opponent's ice. The ice warrior collects ice from all the nearby buildings and collects it into one massive frozen figure. He claims to have been perfecting his Quirk without school his entire life. Dabi taunts him for living a sad life and the elements of their Quirks collide, splitting the battlefield.
The blue flames prove more ferocious and hold the advantage against Geten's ice. Dabi taunts his opponent, calling him outmatched since his ice is all gone. Compress struggles nearby against some of the other warriors and asks for help. Dabi asks why he should help when an army of Twice clones is headed their way. The doubles fight to protect Dabi and Compress from the other warriors. Many of them decide they should try and double Dabi but Compress urges them to save some fodder for when Gigantomachia awakens.
Geten takes out much of Twice's Sad Mans Parade with a barrage of ice. Confused, Dabi asks if this town specially manufactures ice. The Iceman explains that he can lower the temperature of the town's water supply in order to generate more ice. Dabi calls him obnoxious for not leading with that in the fight and Geten responds by claiming the Liberation Army will create a world where status is attained by the strength of one's Meta Ability.
Dabi believes that Geten's words of sheer strength sounds miserable and rudely asks him to keel over and die. The ice warrior claims Dabi will be the one who dies, as he can smell his burning body from here. Geten has been observing Dabi's Quirk and believes his body is not compatible with it. Dabi's blue flames starts eat away at his body, meaning its difficult for him to fight prolonged battles. Compress wishes they could stick Gigantomachia on the iceman and worries about Dabi's fate. Doctor Ujiko notices the League is in peril and awakens the giant early. 
Despite his injuries, Dabi fights on against Geten in a battle of elements. Their fighting continues until both fighters are worn down and Gigantomachia enters the city. The giant proves far more powerful than the army can contend with and Compress realizes they were foolish for underestimating him. Compress asks Dabi to finish up this battle so they can save Tomura before the giant reaches him. 
Worried for his own leader, Geten flees the area and tries to stop the giant on his own, only to be easily cast aside. Annoyed and smoking from his wounds, Dabi claims he was close to burning that icy freak up before he fled. Tomura achieves victory against the Meta Liberation Army's leader and obliterates half the city with his Quirk. Re-Destro concedes and hands the Liberation Army over to him.
The League of Villains all survive the Revival Party and recover for a week in a new mansion. Dabi meets back up with Hawks and confirms he killed a man as asked. He isn't sure its actually Best Jeanist but invites him to the next meeting anyway.
While dining on Sushi, Compress claims that this is the calm after the storm. Dabi replies that Compress didn't do a single thing in the battle. Spinner asks Dabi for his sushi and Dabi lets him have it because he hates fish.
Dabi and all his allies are led underground by Skeptic and Trumpet of the Liberation Army. With Tomura as its new leader, the League of Villains and the Meta Liberation Army merge to become the Paranormal Liberation Front. Dabi is one of the nine lieutenants appointed to Tomura and will receive a team tailored to him. 
Dabi then meets up with Hawks sometime after the ceremony and greets the No.2 Pro Hero, wondering about the latter's sudden change of mood. Hawks decides to not tell Dabi about his actual mood towards the new formation of the Paranormal Liberation Front.
At some point after the clash, Tomura and his allies gain information about one of Ujiko's projects involving Quirk and body enhancement upon getting requested to transfer important cargo to an unknown location. The League questions Ujiko what's inside the cargo, to which the Doctor simply tells them it has nothing to do with them. With that being said, Dabi, Spinner, and Mr. Compress are assigned to do the task. Although they dislike being treated like regular deliverymen, the three agree to do Ujiko's request.
On one late winter night, the League uses an armored truck to transfer the cargo while fleeing from a group of pursuing Pro Heroes on night duty. It turns out that the information about Ujiko's project was leaked out and the Heroes have apparently formed a trap to prevent the League from escaping. When Rock Lock and his partner try to get closer, Dabi emerges from one of the truck's windows and unleashes a blast of fire straight at them. This forces Rock Lock to use Deadbolt to protect him and his partner, preventing them to continue pursuing them. The other two also fend off the Heroes but one of them manages to board the truck. Dabi acts quickly and brutally cremates the Hero to death before he could do anything.
Although they successfully blocked off their pursuers, Spinner wonders who alerted the Heroes of their escape route, to which Dabi replies it must've been an info leak. Endeavor and his small team reveal themselves at the end of the road, surprising both Spinner and Compress. Dabi, on the other hand, expresses delight at Endeavor's arrival and launches another large fire blast at him. Endeavor counters this by using Flashfire Fist - Jet Burn, causing both attacks to cancel out on each other.
Spinner decides to accelerate the truck while Dabi readies himself to release a more powerful blast of his flames, both intending to kill Endeavor right on spot. Unfazed by this sudden move, Endeavor tells his allies to leave the scene as he retaliates with Prominence Burn, which ultimately breaks through Dabi's attack and consumes the truck in a burst of flames. The villains melt into sludge as they turn out to be clones created by Twice. The burning truck rolls off the road and crashes at a nearby forest, which was later revealed to be exactly where Ujiko wanted them to drop off the cargo.
A few days later, the League relocates to an abandoned shack. They discuss who was inside the convey, to which Dabi believes that it wasn't that important just as Ujiko mentioned before. Despite their discussion, all members (excluding Tomura) are still unaware of what was truly inside the convey.
Dabi and his allies (excluding Tomura and Geten) are present at a meeting in which Hawks informs them of Endeavor's decision to take on two new interns other than Shoto. Dabi comments that he feels like the students haven't changed ever since the Training Camp incident.  The lieutenants are also informed of Tomura's ultimate scheme to destroy everything in about 4 months once the latter finishes his upgrades.
Once four months have passed, Dabi is assigned as a commander for the "Vanguard Action Guerilla Warfare Regiment: Violet" team along with Geten.  When the Heroes launch their attack on the Paranormal Liberation Front, Dabi and the other lieutenants are first unaware of the raid, that is until noticing the Gunga Mountain Villa mansion splitting apart by Cementoss' Quirk.
The Paranormal Liberation Front lieutenants decide to evacuate their subordinates and instead send their lower-ranked advisers to fight the oncoming storm. While everyone else evacuates, Dabi moves towards somewhere else in mind.  Upon hearing Twice screaming, Dabi heads straight to the scene, knowing that Hawks has betrayed the organization. 
Dabi eventually reaches where Twice and Hawks are fighting. He takes time to hear what Hawks has to say about his role. Dabi then makes his move by firing off a large flamethrower to save Twice from harm. Dabi enters the room and approaches an injured Hawks, who was badly scorched by his flames. The villain steps on Hawks' face while emitting flames from his soles, mocking the hero for making excuses for his hero-like behavior.  However, Hawks reveals that he survived Dabi's assault thanks to his wings carrying him and Twice to safety.
Dabi tells Hawks that he lost most of his feathers for combat. Hawks calls out Dabi for nearly burning his friend to death but Dabi admits that it's expected of heroes to put their lives on the line. Dabi smugly reveals that he never considered trusting Hawks from the start of his 'cooperation' with the League. With that said, Dabi launches another barrage of flames straight at the Winged Hero, causing a large explosion outside the crumbling mansion.
Twice manages to escape Hawks' grasp and tells Dabi to continue assaulting Hawks. Dabi then encourages Twice to go wild and fight at full power, high-fiving his comrade while holding back Hawks with his flames. Unfortunately, Hawks flew outside out of Dabi's range, shocking the flame villain once more. Dabi proceeds to call Hawks by his real name to catch the hero off-guard while unleashing another flamethrower. This gives Twice barely enough time to escape, only for Hawks to land a fatal blow on the villain, killing him in the process. 
Upon realizing that Twice has died, Dabi completely goes berserk on Hawks, sarcastically mocking the hero for killing his comrade. Dabi continues to beat down Hawks with every bit of rage and anger stored inside him. Hawks wonders why Dabi is smiling despite witnessing Twice's death. Dabi reveals that he can't cry due to burning his tear glands in the past and he is upset by Twice's death since he was necessary for his own dream to come true. Hawks then questions Dabi's true identity, to which the villain responds with a sinister tone. Dabi opens up that he never cared about Shigaraki nor the League. All he ever cared about was carrying out Stain's ideology and spreading it to the world. Just as the villain readies himself to burn Hawks to death, Dabi gets pushed back by the timely arrival of Tsukuyomi.
Dabi tells Fumikage it's pathetic that U.A. forced their students on the battlefield and cruelly points out that Hawks murdered Twice when the latter was trying to protect his friends. This shocks Fumikage hard to the heart. Dabi then questions Fumikage why he's here and mocks him for looking up to a Hero that's far dirtier than the Villains. However, Fumikage refuses to falter at Dabi's words, which makes the latter realize the situation. Dabi readies his flames just as Fumikage prepares Dark Shadow to try to get him and Hawks to safety.
The Villain shoots out a large flamethrower to burn the two Heroes, nearly scorching Fumikage to death in the process. A barely conscious Hawks tells Fumikage that Dabi will keep talking as his taunting serves as a way for him to recharge his flames, telling his intern to leave. Fumikage sends Dark Shadow to attack Dabi but the attack misses. Dabi then jumps down and uses his flames on his feet to hover downwards to chase after Fumikage and Hawks. Noticing that his teacher is unconscious, Fumikage tries to use Black Fallen Angel but Dabi appears before them hovering. He prepares to blast them to ashes while noting he saw Hawks' betrayal coming. However, their skirmish is interrupted by Geten's sudden ice attack, allowing Fumikage and Hawks to escape. 
Soon, Dabi manages to rejoin with Mr. Compress just as the Villains are beginning to retaliate against the Heroes. Dabi questions Compress the whereabouts of the other PLF members, in which Compress points out he was supposed to be with the other lieutenants. The flame villain admits that the whole regiment never worked out due to the sudden attack the Heroes launched, suggesting they should escape for the time being. Compress then reveals that he witnessed Twice's death and this resulted in Himiko losing her composure. Dabi silently observes Himiko killing other Heroes out of vengeance for her friend's demise. 
After Gigantomachia begins to make his move under Tomura's orders, Dabi is among the other PLF lieutenants riding on the behemoth's back. As Gigantomachia tries breaking through Mt. Lady, who tries to hold him back, the Villains discuss what happened when he suddenly grabbed all of them. Dabi deduces that Tomura has awoken, otherwise Gigantomachia wouldn't even be moving. While talking, Dabi holds back a frantic Skeptic from trying to get off the behemoth.
Gigantomachia decides to take a shortcut to reach Tomura quicker, so he throws aside Mt. Lady by her foot and charges forward to his destination. Kamui Woods and Midnight attempt to intervene but Kamui gets dowsed by a stream of flames, courtesy of Dabi himself. Midnight manages to witness the League on Gigantomachia's back but ends up slamming into a group of building debris released by Mr. Compress. 
With the pursuing Pros out of their way, Gigantomachia and the League continue to escape while an injured Mt. Lady and Kamui Woods struggle to drag him down. However, their escape is cut off by the Villa Raid Backup Team, in which they end up sending Gigantomachia crashing into the ground with their Quirks. The Villains then notice several students charging straight at them. Kyoka tries to attack with her Amplifier Jack but Dabi blasts them with his flames, forcing her to retract them. Denki follows up by shooting many of his disks near the Villains' positions but due to Reiko throwing him at a poor angle, he gets knocked down by Compress' remaining pieces of building debris.
Gigantomachia opens his mouth, nearly allowing the students to throw in the sedatives, only for the behemoth to blow most of them away with his breath. Dabi releases more of his flames to hold off the remaining students on the battlefield, causing more steam to emerge from his body. He then comments that he once heard that having multiple Quirks allows the user to remain more active in-battle, a trait that Gigantomachia possesses. However, Red Riot manages to climb up Gigantomachia's arm and throws the sedative into his mouth, just as another group of Pro Heroes joins the fray.  Regardless, Gigantomachia manages to overwhelm the Pro Heroes and escapes without any scratch. The behemoth eventually tears through multiple cities, destroying everything in his path with the remaining members of the PLF following behind.