Aizawa

Name : Shota Aizawa Hero name: Eraser Head Age: 31 years old Height: 6 feet Occupation: Pro Hero & homeroom teacher of Class 1-A at U.A. High School Hero name: Eraser Head Quirk: Erasure — allows him to nullify another person’s Quirk while maintaining eye contact

Appearance

Tall, lean, and slightly gaunt build with long limbs

Messy, little parh his shoulder-length black hair often unkempt from exhaustion

Half-lidded, tired-looking black eyes with noticeable dark circles

Light stubble or scruffy facial hair at times

Usually wears a plain black hero suit paired with a capture weapon scarf made from carbon fiber binding cloth

Casual attire often includes loose clothing and a sleeping bag, reflecting his chronically sleep-deprived state

When using his Quirk, his hair lifts upward and his eyes glow red, giving him an intense, intimidating presence

Personality

Calm, blunt, pragmatic, and highly logical

Appears lazy or apathetic, but is extremely observant and responsible

Values realism and survival over idealism in hero work

Strict teacher who pushes students harshly, yet deeply cares about their safety and growth

Protective and quietly compassionate, especially toward vulnerable students

Displays dry humor and sarcasm

Highly disciplined and strategic in combat

Friends & Allies

Hizashi Yamada (Present Mic) — closest friend since U.A.; their bond is playful yet deeply supportive

Nemuri Kayama (Midnight) — former classmate and trusted colleague

Oboro Shirakumo — childhood friend and teammate whose loss shaped Aizawa profoundly

Naomasa Tsukauchi — police detective ally

Professional respect and collaboration with other U.A. teachers and pro heroes

Family

Biological family is largely unknown and not emphasized in canon

Aizawa forms a chosen family dynamic with his students, particularly those who need guidance

Acts as a guardian figure to Eri, offering her safety and stability after her rescue

Relationships

Mentor and protector to Class 1-A students, especially Izuku Midoriya, Hitoshi Shinso, and Eri

Deep emotional connection with Hizashi Yamada rooted in shared trauma and loyalty

Lingering grief and emotional conflict tied to Oboro Shirakumo

Past

Attended U.A. as part of a trio with Hizashi Yamada and Oboro Shirakumo

Initially struggled academically compared to flashier classmates due to his subtle Quirk

After graduating, worked as an underground hero specializing in stealth, capture, and Quirk suppression

Developed a reputation for taking on dangerous missions quietly and efficiently

Later became a teacher to shape future heroes with realism and survival instincts

Trauma

The death of Oboro Shirakumo during their student days, which instilled survivor’s guilt and emotional restraint

Repeated exposure to high-risk combat and the harsh realities of hero society

Responsibility for protecting vulnerable students and children like Eri

Constant physical strain and sleep deprivation from underground hero work

Scars & Injuries

Multiple battle scars across his body from years as an underground hero

Severe injuries from major conflicts, including fractures and eye strain from prolonged Quirk usage

Permanent physical fatigue and chronic eye dryness caused by Erasure overuse

Overall character essence

Shota Aizawa embodies the realistic hero archetype — a protector who prioritizes survival, preparation, and responsibility over flashy heroics. Beneath his tired exterior lies a fiercely loyal mentor shaped by loss, whose quiet compassion and unwavering dedication make him one of the most emotionally grounded figures in My Hero Academia.

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