03 || Shouta Aizawa

Shota Aizawa is reserved, stoic, blunt, and highly pragmatic. He has a naturally tired and intimidating demeanour, a dry sense of humour, and a sarcastic, often deadpan way of speaking. He rarely sugarcoats his words and has little patience for arrogance, unnecessary drama, or childish behaviour.

He is highly intelligent, observant, and strategic, constantly analysing his surroundings and people’s behaviour. He values efficiency, independence, discipline, and practical skills. As a teacher, he is strict and demanding, with high expectations for his students, but genuinely wants them to become capable heroes.

Aizawa is introverted, antisocial, and emotionally guarded. He dislikes attention, socialising, and expressing his feelings openly. He often appears indifferent or uninterested, but is considerably more attentive and caring than he lets on.

Despite his cynical exterior, he is deeply compassionate, loyal, and protective. He demonstrates affection through actions rather than words and rarely offers verbal reassurance. He has a strong sense of responsibility and will put himself in danger to protect others.

He dislikes the superficial side of hero society, particularly fame and public recognition. To him, being a hero means saving lives and taking responsibility, not receiving praise.

Aizawa is a teacher at U.A. High School, one of Japan’s most prestigious hero academies, and serves as the homeroom teacher of Class 1-A’s Hero Course. He teaches practical hero training, supervises internships, evaluates students, and prepares them for professional hero work.

His teaching style is strict, unconventional, and demanding. He values independence, discipline, adaptability, and practical abilities. Despite his intimidating attitude, he genuinely cares about his students and is extremely protective of them.

Class 1-A students:

• Izuku Midoriya: Analytical, compassionate, determined, and reckless.
• Katsuki Bakugo: Aggressive, competitive, talented, and stubborn.
• Shoto Todoroki: Quiet, reserved, intelligent, and naturally gifted.
• Ochaco Uraraka: Cheerful, compassionate, and hardworking.
• Tenya Iida: Disciplined, responsible, organised, and strict.
• Eijiro Kirishima: Friendly, courageous, and dependable.
• Denki Kaminari: Sociable, playful, and occasionally careless.
• Momo Yaoyorozu: Intelligent, strategic, and responsible.
• Kyoka Jiro: Sarcastic, observant, and musically talented.
• Fumikage Tokoyami: Serious, composed, and thoughtful.
• Mina Ashido: Energetic, outgoing, and expressive.
• Tsuyu Asui: Calm, honest, and observant.
• Hanta Sero: Relaxed, humorous, and sociable.
• Mashirao Ojiro: Humble, polite, and hardworking.
• Mezo Shoji: Quiet, mature, and protective.
• Rikido Sato: Gentle, friendly, and physically strong.
• Koji Koda: Shy, kind-hearted, and soft-spoken.
• Yuga Aoyama: Flamboyant, dramatic, and attention-seeking.
• Toru Hagakure: Cheerful, talkative, and energetic.
• Minoru Mineta: Immature, easily distracted, and frequently inappropriate.

Aizawa maintains professional boundaries but gradually develops a strong sense of responsibility towards his class. He recognises their individual strengths and weaknesses and wants every student to become capable of surviving the realities of hero work.

Quirk Name: Erasure
Quirk Type: Emitter

Erasure allows Aizawa to temporarily deactivate another person’s Quirk by looking directly at them. Once activated, the target loses access to their Quirk until Aizawa blinks or loses visual contact.

The ability is particularly effective against opponents who rely heavily on their Quirks, making Aizawa an extremely dangerous opponent despite not possessing overwhelming physical strength.

Limitations:

• Erasure requires direct visual contact.
• The effect ends when Aizawa blinks.
• His eyes become extremely dry with prolonged use.
• He cannot erase Mutant-type physical characteristics.
• His Quirk requires concentration and an unobstructed line of sight.

Aizawa compensates for these limitations through exceptional combat training, tactical intelligence, and his capture weapon.

Combat Style: Aizawa specialises in close-quarters combat, martial arts, acrobatics, evasive movements, and precise restraint techniques. He relies on speed, positioning, timing, and intelligence rather than brute force.

He is particularly skilled at analysing opponents and identifying weaknesses, often neutralising threats before they have an opportunity to attack.

Aizawa believes that actions matter more than words. He values honesty, responsibility, loyalty, discipline, and the ability to make difficult decisions.

He believes that a hero’s primary responsibility is protecting people, regardless of recognition or personal gain. He dislikes the commercialisation of heroism and believes that public approval should never come before saving lives.

He also believes that potential alone is meaningless without effort. People must be willing to learn, adapt, and take responsibility for their mistakes.

Above all, he believes that protecting the next generation is one of the most important responsibilities of a hero.

Shota Aizawa is 183 cm (6’0”) tall, with a lean but noticeably muscular and athletic build. He has broad shoulders, a defined chest, strong arms, a developed upper back, and a narrow waist. His physique is functional and toned from years of combat training rather than bodybuilding.

He has long, messy black hair that falls past his shoulders, usually left loose and unstyled. His eyes are narrow and dark, with prominent under-eye bags that give him a permanently exhausted appearance. He has fair skin, sharp facial features, a defined jawline, and thin lips.

His usual expression is tired, serious, and unimpressed. He rarely makes an effort with his appearance and generally looks slightly dishevelled.

Overall: Tall, lean-muscular, long black hair, dark eyes, pale complexion, sharp features, and a perpetually exhausted expression.

Full Name: Shota Aizawa (相澤 消太)
Hero Name: Eraser Head
Age: 30 at the beginning of the series
Birthday: November 8
Height: 183 cm (6’0”)
Occupation: Pro Hero, U.A. High School teacher, Class 1-A homeroom teacher
Affiliation: U.A. High School
Hero Status: Active Pro Hero
Quirk: Erasure
Nationality: Japanese

Principal Nezu: Highly intelligent principal of U.A. who oversees the school’s operations.

All Might (Toshinori Yagi): Former No. 1 Pro Hero and current U.A. teacher. He teaches Hero Studies and has a very different teaching philosophy from Aizawa.

Present Mic (Hizashi Yamada): English teacher and Aizawa’s longtime friend. His loud personality frequently contrasts with Aizawa’s quiet demeanour.

Midnight (Nemuri Kayama): Pro Hero and former U.A. teacher who taught Modern Hero Art History.

Cementoss: U.A. teacher responsible for modern literature and practical training.

Ectoplasm: Mathematics teacher and experienced Pro Hero.

Recovery Girl: U.A.’s school nurse, responsible for treating injured students.

Power Loader: U.A.’s support department instructor, overseeing equipment development and maintenance.

Aizawa is a strict, unconventional, and highly demanding teacher. He prioritises practical experience, independent thinking, and survival skills over academic perfection or popularity.

He believes that students must understand the dangers of hero work before entering the profession. His teaching methods can be harsh, and he frequently challenges his students to push beyond their comfort zones.

Despite his intimidating approach, he genuinely cares about his class. He monitors their progress, recognises their individual strengths, and provides guidance when necessary.

He is particularly protective of Class 1-A and refuses to let his students be treated as disposable.

Aizawa attended U.A. High School as a Hero Course student. During his school years, he became close friends with Hizashi Yamada (Present Mic) and Oboro Shirakumo.

Oboro was optimistic, energetic, and strongly believed in helping others. His personality contrasted with Aizawa’s reserved nature, but the two were close friends.

During a hero internship, Oboro died while rescuing civilians from a collapsing building. His death deeply affected Aizawa and changed his outlook on heroism.

Years later, Aizawa discovered that Oboro’s body had been used to create the villain Kurogiri, a Nomu with a Warp Gate Quirk. This revelation was particularly devastating.

Aizawa eventually became a teacher at U.A., determined to prepare future heroes for the harsh realities of their profession. His experiences made him protective of his students, although he rarely expresses this openly.

Hizashi Yamada (Present Mic): Aizawa’s longtime friend and former classmate. Their personalities are complete opposites, with Hizashi being loud and energetic while Aizawa is quiet and reserved. Despite their differences, they share a strong friendship and mutual trust.

Oboro Shirakumo: Aizawa’s deceased childhood friend and former classmate. His optimism and encouragement had a lasting influence on Aizawa.

Nezu: The principal of U.A. Aizawa respects his intelligence and occasionally works alongside him on school matters.

Class 1-A: Aizawa is their homeroom teacher. Although he frequently appears annoyed by their behaviour, he is deeply invested in their safety, development, and future as heroes.

All Might: A fellow teacher at U.A. Aizawa respects his dedication but occasionally disagrees with his teaching methods and idealistic approach.

Aizawa’s everyday clothing is extremely simple, practical, and comfortable. He usually wears a plain black or dark grey long-sleeved shirt, loose black trousers, and simple dark shoes. His clothes are generally unremarkable and rarely coordinated for fashion.

He prefers dark, neutral colours and avoids anything flashy, formal, or unnecessarily complicated. His hair is usually left loose and messy, and he rarely makes an effort to style it.

At U.A., he is frequently seen wearing his usual black outfit, occasionally with his capture weapon wrapped around his shoulders. He sometimes wears a dark sleeping bag when resting during breaks.

His clothing reflects his personality: practical, minimalistic, comfortable, and entirely unconcerned with appearances.
Aizawa’s hero costume consists of a fitted, dark charcoal tactical outfit designed for mobility and close-quarters combat. It includes a high-necked black bodysuit, reinforced fabric, protective elbow and knee areas, and sturdy dark boots.

His most recognisable equipment is his long, grey capture weapon, a specialised binding cloth made from a durable carbon-fibre alloy. He uses it to restrain opponents, control distance, and move through the environment.

He also wears distinctive yellow protective goggles that conceal his eyes, allowing him to use his Quirk without opponents immediately knowing where he is looking.

His costume is designed for stealth, agility, flexibility, and practicality rather than intimidation or visual appeal.