Nomu (U.S.J.)

Noumu (脳無, Noumu) is a villain and one of the main antagonists of the Rescue Trial Arc. His goal is to kill All Might "The Symbol of Peace".

Appearance
Noumu appears to be a large black monster with his brain exposed on the top of his head. He also has large eyes and sharp teeth.

Personality
Noumu doesn't appear to be able to speak, although he appears to be capable of following orders without question, as shown when he follows Shigaraki's orders. He is very brutal with his enemies and will not show any mercy.

Rescue Trial Arc
Noumu appears at the Ultimate Space and Jams after Black Mist warps him and the other villains there. When Shouta knocks Shigaraki down onto the ground, Noumu appears before Shouta and fights him, defeating him with ease. When Shouta uses his Quirk to save Tsuyu from Shigaraki, Noumu smashes Shouta's head into the ground. He then blocks Izuku's One For All empowered punch, not even receiving a single scratch from it.

All Might attacks Noumu with Carolina Smash, but does little effect to him. Noumu tries to counter, but All Might dodges. All Might then uses a backdrop slam against Noumu, but Black Mist opens a gate with his Quirk, allowing Noumu to evade the attack and then clutches onto All Might. However, half of Noumu's body is frozen by Shouto, giving All Might the opportunity to escape from Noumu.

After Shigaraki orders him to get rid of Katsuki and retrieve Black Mist, Noumu gets out of Black Mist's gate, but his frozen half is then shattered. However, after getting out, Noumu begins to regenerate, regaining his lost limbs. He then attacks Katsuki, but his punch is blocked by All Might who is sent back a distance by Noumu's punch. However, Noumu's attack forced Katsuki to evade, allowing Black Mist to escape from Katsuki. Noumu and All Might engage in a fist fight, punching each other blow for blow (although Noumu has the upper hand thanks to his Quirk). All Might decides to go beyond his 100%, and, with a devastating punch, Noumu is sent flying out of the U.S.J, defeated. It is revealed that All Might's punch sent Noumu flying into a forest 400m away from the U.S.J and is captured by the authorities, putting up no resistance whatsoever.

Quirk

 * "Impact Absorption" - Noumu's Quirk grants him the ability to absorb the impact of any attack. But he has a limit to how much he can absorb.
 * "Regeneration" - Noumu's second Quirk grants him the ability to regenerate anything, from injuries to limbs.

Shigaraki Tomura
Because Noumu doesn't have the ability to think for himself, he relies of Shigaraki to think for him.

Trivia

 * Supposedly, his base power is as strong as All Might's.
 * His name, "脳無" means "brainless".
 * He is the first Quirk user to have two Quirks, as of now in the series.