Shōta Aizawa 01

Shota is a very stern and reserved man who has lofty expectations of his students. He is primarily motivated by logic and does not believe in the necessity to maintain a clean-cut appearance or filter his words or ideas for others. He often comes off as cold, apathetic, and impatient, exerting very little energy in most situations, preferring to take naps in his sleeping bag instead.

As a teacher with notoriously high expectations, Shota is known to expel students who he feels are not suited for U.A. High. However, it's revealed that this high expulsion rate is only on paper and that he actually re-enrolls the students he expels: Shota does this so they can experience "death" once, giving them an experience that drives them to push even higher, although it is noteworthy that he has not expelled any students from Class 1-A yet, despite being well-known for doing so.

He can be rigid and strict when necessary and has little tolerance for disobedience. Shota is not afraid of putting his students through rigorous training and often emphasizes the more unpleasant parts of heroism so that his students can overcome their limits.

Shota has proven to be very vocal and unafraid when expressing his ideas. He has mentioned on several occasions that some of U.A.'s choices when it comes to examinations are not practical or challenging enough for real hero hopefuls and is adamant about having certain systems used by the institution changed.

Shota is a slender and tall, pale-skinned man with messy, shoulder-length black hair that partially hangs in front of his face and half-opened black eyes. He is usually recognized for his worn-out appearance, often looking fatigued. His facial hair is almost always in a stubbly, unkempt state (shaved for the press), and his eyes tired, bloodshot, and flat unless he's in combat.

Eraser Head has demonstrated exceptional combat prowess, tactical intelligence, and adaptability, making him one of the most formidable teachers and Pro Heroes at U.A. High School. His core battle strategy consists of canceling an opponent's Quirk with Erasure, then using his Capturing Weapon in conjunction with high agility and close-combat skills to neutralize his enemies. Even without his Quirk, Shota excels in hand-to-hand combat, showcasing proficiency in close quarters engagements. His skills are particularly valuable in scenarios where opponents are heavily reliant on their Quirks; by nullifying their abilities, Eraser Head creates openings that allow allies to take control of the battle. During his time as a student at U.A., Hizashi stated that, even though he lacks in taking the initiative because of his rational thinking, once he sets up his mind, he becomes a very fearful opponent.

Eraser Head's Quirk allows him to nullify another person's Quirk by looking at them. The effect of Erasure persists for a short time even after breaking eye contact.