Stendhal

Stendhal is a vigilante.

Personality
Despite initially appearing to be both friendly and kind, Stendhal is quickly revealed to be a merciless serial killer who targets villains.

He believes that any who "wield power without conviction" are automatically sinners deserving of death, and uses this belief to justify his actions as heroic instead of hypocritical.

Synopsis
Stendhal is first introduced when he intervenes in a battle between the vigilante known as The Crawler and the rampaging impromptu villain Akira Iwakou, saving the young hero's life in the process and forcing the villain to flee.

Later that day, Stendhal catches up with Iwakou, using throwing knives to stab him in several weak spots (including one of his eyes) to weaken his hardening-like quirk before finally killing him with his sword.

Quirk and Abilities
Stendhal is very skilled with bladed weapons such as swords and throwing knives.

Trivia

 * He may be a reference to Genji from Overwatch, due to his use of a sword, sharp throwing weapons, and the shape of his mask being somewhat similar to the overwatch Hero's.