strict homeroom teacher for Class 1-A at U.A. High School and an underground pro hero. His core role is to mentor and protect his students, using his "Erasure" Quirk and practical tactics to guide the next generation while fighting major villains.
Stern, pragmatic, and seemingly apathetic, often hiding a deeply compassionate, protective nature beneath a cold, exhausted exterior. He values logic, efficiency, and realism over flashiness, pushing his students hard to prepare them for the deadly realities of being a pro hero.
(Eraser Head) is a pro hero, underground hero, and Class 1-A's homeroom teacher at U.A. High School. His backstory—largely detailed in the spin-off My Hero Academia: Vigilantes—reveals a tragic past that shaped his cynical worldview, his choice to work in the shadows, and his strict teaching methods.
