Brats like you sure know how to pass the blame. It's no good. I don't really hold a grudge against 'em about my eye. I killed 'em, just like I wanted to. And they tried to stop me. We all did our best and had to deal with the results. What's bad is when you can't put your money where your mouth is... like your dear mommy and daddy!
Muscular to Kota Izumi about his parents in "Stake Your Life, Hero!"

Muscular (マスキュラー Masukyurā?)[2] is a villain affiliated with the League of Villains as part of its Vanguard Action Squad. He and the rest of his squad serve as the primary antagonists of the Forest Training Camp Arc.

He is currently incarcerated in Tartarus.[3]


Muscular is a large, bulky and extremely muscular man set wide with short, spiky blond hair and small black eyes. He has a large scar going across the left side of his face, his left eye replaced with a prosthetic one, and he has another, smaller scar on the right side of his forehead.

His outfit consists of a black, hooded cloak and a white hockey mask with multiple holes. Underneath this, he wears a red tank top, a dark jacket that hangs around his waist, dark-colored pants, and black knee-high boots. 



Befitting his appearance, Muscular has a very sadistic and bloodthirsty personality. He openly admits that he wants to use his Quirk freely to kill. Muscular enjoys killing and tormenting those he fights, often saying "show me your blood!". Unlike most of the other members of the Vanguard Action Squad, he joined the League of Villains just to let loose with his brutal tendencies, rather than following Stain's ideology.

Muscular's malice

Muscular's malefic nature.

Even so, Muscular does have ideals of his own. He believes that people should deliver on whatever promises they make to others or else their words mean nothing. To him, "right" and "wrong" are determined by one's ability to accomplish their intentions. When he fought Water Hose, he viewed it as a battle of wills between his intent to kill and Water Hose's intent to stop him; as he was victorious, he was right and Water Hose was wrong. Conversely, he accepts the loss of his left eye as the result of Water Hose's intent and bears them no ill will for it. He even spoke highly of the heroes to their son.

Muscular's signature trait is his overconfidence which later proved to be his greatest flaw. Muscular believed himself superior to Izuku Midoriya because his Quirk's augmentation powers were more potent than Izuku's. This superiority complex resulted in Muscular using only part of his power to play around with Izuku. His overconfidence is also what caused him to become distracted during their fight. Izuku was able to land a powerful smash on Muscular on two separate occasions because he allowed himself to be distracted by Kota Izumi.  

Despite his ego, Muscular does compliment Izuku's strengths. After getting hit by a full-power smash, Muscular admitted Izuku is powerful and decided to stop holding back. However, this never stopped him from taunting Izuku during their bout.


Overall Abilities: Muscular is a very powerful villain, being one of the strongest members of the League of Villains' Vanguard Action Squad. His incredible aptitude in combat allows him to singlehandedly overpower, and potentially kill, Pro Heroes, most notably, Water Hose. Muscular also has a great handle on his Quirk, Muscle Augmentation, which he used to exponentially increase his physical brawn in parts of his body, or his whole body. By infusing his heightened strength into his melee combat abilities, Muscular overwhelms his opponents with blurring speeds while delivering heavily reinforced strikes, making him a highly formidable force to be reckoned with. While he is powerful, Muscular does however sustain some form of injury after a bout, such as his missing left eye caused by his confrontation with Water Hose. Muscular's bloodthirsty nature, coupled with his combat efficiency, earned him the epithet, "The Carnal Murderer".

He was more than capable of repeatedly overpowering Izuku Midoriya, an inheritor of One For All, who is also one of the most powerful students at U.A. High School. Even when Izuku delivered a 100% "Detroit Smash", which is equivalent to the strength of All Might, Muscular emerged virtually unscathed, albeit at the cost of his tank top and one of his prosthetic left eyes. After the said attack, Muscular revealed was holding back a great deal of his strength, and when he decided to fight seriously, he not only continued to dominate Izuku, but nearly killed him too, even as the young hero employed another full-power "Detroit Smash", had it not been for the intervention of Kota Izumi. Kota's actions inspired Izuku to go beyond 100% of One For All in order to overcome Muscular's power and defeat the villain. Battling against Izuku showcased that Muscular's overall prowess is enough to contend with someone of All Might's caliber.


Muscle Augment thumb

Muscular covering his body in muscle fibers.

Muscle Augmentation ( (きん) (にく) (ぞう) (きょう) Kin'niku Zōkyō?): Muscular's Quirk allows him to greatly amplify his own muscle fibers, even reaching a point where they can’t be contained by his skin.[4] These enhanced muscle fibers exponentially increase all of Muscular's physical abilities to a superhuman level, roughly on par with One For All.

He has also been shown to use his Quirk for defense by covering his whole body in an armor of augmented muscle fibers.

  • Immense Strength: Thanks to his Quirk, Muscular exhibits extreme levels of physical strength. Even when holding back, he is able to shatter rock and overpower Izuku Midoriya with minimal effort, such as sending the young hero flying with remarkable force with a mere kick. When fighting seriously, Muscular's reinforced strikes were able to cause destruction on a scale to similar to Izuku's 100% Detroit Smash. He was also able to directly overpower Izuku, who was using One For All at 100% at the time, in a physical clash.
  • Immense Durability: Muscular possesses a frightening level of impermeability to physical harm. He was able to take the full brunt of Izuku's 100% Detroit Smash, which is on the same level as All Might's power, with minimal injury. However, he was incapacitated only after Izuku went beyond his limit with One For All. Even after the battle, Muscular was shown fully awake, and fighting with his restraints while Izuku was in a coma.
  • Immense Speed: Muscular has shown to be surprisingly swift despite his large bulk. He was able to catch Izuku off-guard several times during their fight. With the increased muscle mass in his legs, Muscular is able to launch himself off the ground at blurring speeds. Izuku surmised that, even if he took Kota and tried to run back to the training camp, Muscular would overtake them in seconds the very minute the young hero opted a hasty retreat, especially since Izuku was exhausted from the training that day.


5/5 A
5/5 A
2/5 D
1/5 E
1/5 E
Muscular's stats, according to the Ultra Archive Book

6/6 S
5/6 A
1/6 E
1/6 E
Desire to Kill
6/6 S
Muscular's stats, according to the Ultra Analysis Book


Prosthetic Left Eyes: Muscular keeps a small collection of replacement eyes in his left pocket in case his regular one is damaged or loosened from its socket. Each one sports a unique design. Muscular picks a replacement depending on his current mood.[5]

Battles & Events

Battles & Events

Character Appearances

Forest Training Camp Arc
70. Wild, Wild Pussycats Absent
71. Kota Absent
72. Day Two Debut
73. Good Evening Appears
74. Smoke Signal Appears
75. Stake Your Life, Hero! Appears
76. My Hero Appears
77. It's Chaos Pictured
78. Whirling Chaos Absent
79. Drive It Home, Iron Fist!!! Absent
80. Establishing the Bakugo Bodyguard Brigade Absent
81. Roaring Upheavel Appears
82. What a Twist! Absent
83. Loss Appears
Shie Hassaikai Arc
122. A Season for Encounters Absent
123. Unrivaled Absent
124. Trouble Ahead!! Episode: Work Studies Absent
125. Overhaul Fantasy
126. Open Up, World Absent
127. Sir Nighteye and Izuku Midoriya and Mirio Togata and All Might Absent
128. Boy Meets... Absent
129. Eri Absent
130. Listen to the Truth Absent
131. Fighting Fate Absent
132. The Plan Absent
133. Catch Up, Kirishima Absent
134. Let's Go, Gutsy Red Riot Absent
135. An Unpleasant Talk Absent
136. Close at Hand!! Absent
137. Restraint!! Absent
138. Go!! Absent
139. Shudder! The Underground Labyrinth Absent
140. Suneater of the Big Three Absent
141. Hassaikai: Behind the Scenes Absent
142. Shield and Shield, Spear and Shield Absent
143. Let’s Rumble, Rappa!! Absent
144. Red Riot, Part 1 Absent
145. Red Riot, Part 2 Absent
146. Temp Squad Absent
147. Twoga!! Absent
148. The Anguish of Young Twoga Absent
149. Don't Get Mad, Irinaka Absent
150. Mirio Togata Absent
151. Mirio Togata!! Absent
152. Lemillion Absent
153. Transform! Absent
154. Unforeseen Hope Absent
155. Saviors, the Saved and a Hero's Place Absent
156. The Power of Those Saved Absent
157. Infinite 100 Percent Absent
158. Chisaki's Warped Compassion Absent
159. It's Over!! Absent
160. Expressway Absent
161. Bright Future Absent
162. Suitable One Absent


  • (To Izuku Midoriya about Kota Izumi) "Haa ha ha! Blood! Love it. So fun! What was that, again? You're gonna save him, right?! So why're you running?! That's a weird way to save someone!!"[4]
  • (To Izuku Midoriya) "My Quirk's a muscle enhancer. These muscle fibers of mine can't be contained even by my skin. They raise the standard in speed!! And power!! Get what I'm saying?! You're nothing inferior version of me! You understand where I'm coming from?! I can't help but laugh!"[4]
  • (To Kota Izumi about his parents) "Brats like you sure know how to pass the blame. It's no good. I don't really hold a grudge against 'em about my eye. I killed 'em, just like I wanted to. And they tried to stop me. We all did our best and had to deal with the results. What's bad is when you can't put your money where your mouth your dear mommy and daddy!"[4]
  • (To Izuku Midoriya when asked about the League of Villains' goal) "Like I care. All I wanna do is rampage. As long as I get to use my Quirk without holding back, I'm good."[5]


  1. My Hero Academia Manga: Chapter 125.
  2. My Hero Academia Manga: Chapter 78 (p. 4).
  3. My Hero Academia Official Character Book 2 Ultra Analysis.
  4. 4.0 4.1 4.2 4.3 My Hero Academia Manga: Chapter 75.
  5. 5.0 5.1 My Hero Academia Manga: Chapter 76.

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