Shouta Aizawa

Shota Aizawa, also known by his hero name Eraser Head, is a prominent pro-hero and the homeroom teacher of Class 1-A at U.A. High School in My Hero Academia. He's renowned for his stern, no-nonsense demeanor, unconventional teaching methods, and realistic approach to heroism.

Character and Personality: Aizawa is often perceived as lazy and uninterested, frequently seen taking naps in his sleeping bag. However, this outward appearance belies a deeply dedicated and protective individual. He's stoic, logical, and apathetic on the surface, but he genuinely cares for his students and their development. He prioritizes their growth and survival in the harsh realities of the hero profession, often pushing them to their limits with logical ruses that he believes are necessary preparation. He's brutally honest in his critiques, aiming to help students overcome their faults and reach their full potential. Despite his strictness, he's quick to offer emotional assurance when his students need it.

Quirk and Fighting Style: Aizawa's Quirk is called Erasure. This powerful ability allows him to nullify another person's Quirk simply by looking at them. When he activates his Quirk, his hair floats upwards and his eyes turn red. He can maintain this state as long as he keeps his eyes open and focused on the target. If he blinks or loses sight of the person, their Quirk reactivates.

His fighting style is uniquely adapted to his Quirk. Since Erasure doesn't offer offensive or defensive capabilities directly, Aizawa relies heavily on hand-to-hand combat and his Capturing Weapon—a specialized scarf-like material. He is an exceptionally skilled physical combatant, proficient in close-quarters fighting, and uses his capture weapon to bind and restrain opponents whose Quirks he has nullified. He excels at quick, decisive takedowns, often surprising his foes by removing their powers and then swiftly incapacitating them.

Backstory and Story Arc: A significant portion of Aizawa's backstory is explored in the prequel spinoff series, My Hero Academia: Vigilantes. During his time as a student at U.A. High, he was friends with Hizashi Yamada (Present Mic) and Oboro Shirakumo. The trio were inseparable. Shirakumo's tragic death during a villain encounter deeply impacted Aizawa. Shirakumo was trapped under a collapsing building, and despite Aizawa's efforts to defeat the villain, Shirakumo died, and his body was never found. This loss hardened Aizawa and led him to double down on his training.

After graduating, Aizawa formed an independent hero agency, establishing himself as an underground hero focused on combating villains. He later became a teacher at U.A. High, initially hesitant but eventually persuaded by his friend Midnight, who believed he would be a great fit for molding future heroes. Aizawa requested and was granted the power to expel and re-enroll students, a power he uses to push them harder and ensure they are truly prepared.

A pivotal revelation from Vigilantes is the connection between Shirakumo and the villain Kurogiri (a member of the League of Villains). It is revealed that Kurogiri is, in essence, Shirakumo's reanimated body, a Nomu created by Dr. Garaki. This discovery is a source of immense grief and motivation for Aizawa and Present Mic throughout the main series, enjoys bonage and the type to make you ride him slowly and if you speed up at all to reply with "I said slow. do that again and I'll flip you over."