Shota Aizawa

At U.A. Academy, the secrets begin in the classroom:

Deadly Tests: Aizawa constantly puts his students in near-death situations (like the aptitude test on the first day). Aizawa believes that a person's true character is revealed only when they feel their future is threatened.

The Secret Archive: The school keeps secret records of every hero's weaknesses in Japan, making it a constant target for attacks.

The Truth About All For One (The Immortal Legacy) The ultimate enemy is not just a powerful individual, but the "Collector of History": The Secret to Immortality: He has lived for over a century by stealing abilities that grant longevity. He doesn't just steal power; he steals the "will" of its possessor, possessing a voice inside the head of every person whose ability he has stolen.

The Ultimate Goal: He doesn't want to destroy the world, but rather to become the "center" that everyone needs, distributing abilities to his followers and taking them from his enemies like a god.

This student is a mirror image of Aizawa's past:

His ability (Brainwashing): He can control anyone who answers his question.

Social injustice: Shinso suffered bullying because everyone said his ability was "befitting a villain." Aizawa took him under his wing as a personal trainer to teach him that the tournament wasn't about the type of ability, but how it was used, and gave him a replica of his "battle scarf" to fight with.

There is a massive secret society that opposes current laws:

Ideology: They believe that abilities are "metability" rights, not mere tools, and that everyone should be allowed to use their power as they see fit without legal restrictions.

Influence: They own major corporations, have political connections, and an estimated 100,000 followers who are waiting for the opportune moment to overthrow the current hero system supported by Aizawa.

Project Eri (The Time-Erasing Child)

One of the greatest secrets currently overseen by Aizawa is the child Eri:

The Power (Rewind): Her power isn't a cure, but rather a "rewind" of the body's time. She can return a person to their state of being just hours before birth, or erase their existence entirely by returning them to a point before birth.

The Connection with Aizawa: Because her power is "out of control," Aizawa is the only person in the world who can protect her; as soon as her body begins to emit destructive energy, he erases her power with a single glance. She considers him the father she never had.

The Nomu are not merely monsters; they are a testament to the moral decay of this world:

Genetic Composition: They are created from the corpses of deceased individuals (often criminals or missing persons). The DNA of several people is combined, granting the corpse multiple Quirks simultaneously.

Mental Pressure: Because the brain cannot tolerate more than one Quirk, the person's consciousness is broken, turning them into an obedient slave. This is what happened to Aizawa's friend, Oboro, who was transformed from a heroic student into a silent gateway for villains (Kurogiri).

Behind the facade of justice lurks a government organization that carries out "dirty work" to maintain social stability:

The Killer Industry: This committee didn't just rely on public heroes; it trained "children" to become professional assassins in the shadows, eliminating enemies before the public even knew of their existence.

Heroes as Tools: Heroes like Hawks and Lady Nagant were brainwashed or coerced into carrying out political assassinations to ensure the public's trust in the hero system didn't collapse. Aizawa despises this committee because it treats human beings as mere numbers.

This is the "terrifying secret" that scientists and governments fear, and which was predicted by Dr. Kyudai Garaki:

The Concept: As generations pass, powers blend together, growing stronger and more complex. Eventually, these powers will become so powerful that the human body can no longer withstand them, leading to the collapse of humanity.

The Effect: This explains why students like Midoriya suffer bone-breaking injuries, or why Aizawa needs constant intervention to disable powers that spiral out of control. The world is approaching a "point of no return" where powers will destroy their wielders.

In later periods, the world was no longer a safe place for schools:

Collapse of Trust: After repeated attacks by villains, society began to doubt the ability of heroes like Aizawa to protect children.

Boarding System: Aizawa was forced to live with his students in communal dormitories within the academy to monitor and protect them around the clock, transforming his relationship with them from that of a mere teacher to that of a "spiritual father" and military leader.

A love of cats: Aizawa has a very soft side to cats. He spends his free time feeding stray cats, his room is filled with cat-related items, and he prefers their company to noisy human interaction.

His yellow sleeping bag: He always carries it with him because he suffers from chronic insomnia due to his night shifts as a hero and his daytime work as a teacher. He values ​​"time efficiency" so much that he sleeps in the hallways between classes. Expelling students: Aizawa once expelled an entire class of students (before Class 1-A) because he felt they lacked "potential." But his secret is that he immediately re-enrolls them in the school records, considering the "expulsion" a harsh lesson to make them experience the meaning of "professional death" and return stronger.

Abilities/Tools Detailed Description

Erasure: Doesn't erase abilities from a person's veins, but rather disables the gene responsible for activating them in the brain simply by looking.

Binding Cloth: His scarf is made of steel wire alloys woven with carbon fibers. It took Ayuzawa six years to perfect its use in this impressive way.

Paltry Caltrops: Small spikes he scatters on the ground to impede enemy movement after erasing their abilities, forcing them into hand-to-hand combat, which he excels at.

Goggles: The goggles aren't just for show; the horizontal slits prevent enemies from knowing when he blinks or who he's looking at, keeping them in a constant state of fear.

This is the secret that shocked everyone in the world:

Kurogiri's true nature: The villain created from black mist and loyal to Shigaraki, Aizawa later discovered was not just a "Nomu."

The used corpse: All For One and his doctor secretary stole the body of Oboro Shirakumo (Aizawa's deceased friend), genetically modified it, and combined several abilities to create Kurogiri.

The emotional confrontation: In one of the most difficult moments, Aizawa tried to regain consciousness from within Kurogiri's body, revealing a very human and vulnerable side to his otherwise stern personality.

During a hero training exercise (Work Studies), the trio faced a formidable enemy. In the ensuing battle, Oboro Shirakumo sacrificed his life to protect a group of children, including Aizawa, when an entire building collapsed on him.

The result: This incident shattered Aizawa and led him to embrace a more "hard-nosed" approach. He grew to despise ostentation and false heroism, deciding to become an "underground hero" who works in the shadows, away from the cameras, so as not to waste his time on fame when he could be saving lives.

Shota Aizawa wasn't always the confident hero he seemed. As a teenager, he enrolled at U.A. Academy and was deeply frustrated because his Quirk, Erasure, didn't grant him physical strength or speed; it was merely a defensive ability that disabled others.

The Trio of Friendship: During his school years, Aizawa formed an unforgettable team with his friends Hizashi Yamada (later known as Present Mic) and Oboro Shirakumo.

Oboro's Influence: It was Oboro who gave Aizawa his famous yellow glasses and encouraged him to become a hero. Oboro possessed tremendous positive energy and convinced Aizawa that his Quirk was logical and powerful when combined with physical training.

The most important additional detail about him is his relationship with stray cats (he loves them very much).

Tartarus: The world's most heavily guarded prison, reserved for highly destructive villains (such as All For One). It is located on an isolated, underwater island.

Kamino Ward: The site of the historic and final battle between All Might and All For One, which changed the course of history forever.

The Hero Public Safety Commission: The government organization that oversees heroes and carries out dirty work to maintain social order.

Plus Ultra: This is the motto of U.A. Academy, meaning pushing oneself and one's abilities to their absolute limits to break free from their boundaries.

Quirk Awakening: In moments of extreme mental or physical stress, a person's abilities may suddenly evolve and acquire new, previously nonexistent characteristics.

Nomu: These are "clinically dead" humans whose bodies have been surgically modified and injected with various superhuman abilities. They are mindless monsters who only follow orders, with the strongest being the "High-End," who possesses limited intelligence.

Hero License: No one is permitted to use their abilities in public without an official Hero License; otherwise, they are considered a "Vigilante" (outlaw).

Stain / Chizome Akaguro (Hero Killer - Stain):

Gender: Male. Age: 31.

Appearance: Reptilian-like face (almost without a nose), wears many bandages, and carries rusty swords.

Personality: Has a unique ideology; believes that current heroes are "fake" and only care about money, so society must be cleansed of them.

Abilities (Bloodcurdle): Paralyzes his opponent simply by tasting their blood.

Overhaul / Kai Chisaki (Overhaul):

Gender: Male. Age: In his twenties.

Appearance: Wears a mask resembling a plague doctor's mask, and always wears gloves due to his obsessive-compulsive disorder related to cleanliness and filth.

Personality: Sadistic, cold, and views abilities as a "disease" that must be eradicated.

Abilities (Overhaul): Matter restructuring; he can dismantle and instantly reconstruct anything he touches (whether inanimate objects or human bodies).

Additional Influential Students (Class 1-A & 1-B)

Momo Yaoyorozu:

Gender: Female. Age: 16.

Appearance: Black hair tied up neatly, aristocratic features, and she is the class vice president.

Personality: Highly intelligent (a genius), comes from a very wealthy family, and sometimes suffers from a lack of self-confidence.

Creation: She can create any inanimate object from her body, provided she understands its chemical composition (it relies on her body fat).

Eijiro Kirishima:

Gender: Male. Age: 16.

Appearance: Spiky red hair (dyed), and shark-like teeth.

Personality: He believes in chivalry and gallantry, and he is the only friend Bakugo accepts.

Hardening: His body hardens to the point of being as solid as rock, making him bulletproof and explosion-proof. Neito Monoma (from Class 1-B):

Gender: Male. Age: 16.

Appearance: Short blond hair and light-colored eyes; wears an outfit resembling a tuxedo.

Personality: Extremely arrogant; harbors a grudge against Class 1-A and constantly mocks them with a hysterical laugh.

Abilities (Copy): Can copy the abilities of anyone who touches him for 5 to 10 minutes.

These are the ones who run the world from behind the scenes or on the front lines:

Endeavor / Enji Todoroki:

Gender: Male. Age: 46.

Appearance: A very large, violent-looking man whose face and body are always covered in flames as part of his heroic costume.

Personality: Proud, hot-tempered, and obsessed with surpassing All Might to the point of destroying his family, but he is now trying to atone for his mistakes.

Abilities (Hellflame): Produces and precisely controls extremely hot flames.

Hawks / Keigo Takami:

Gender: Male. Age: 23.

Appearance: A handsome young man with a bird-like appearance, possessing huge red wings and messy blond hair.

Personality: Seems careless and lazy, but is actually a highly skilled and intelligent spy working for the government.

Abilities (Fierce Wings): Can independently control each feather of his wings as a sword or rescue tool. Recovery Girl / Chiyo Shuzenji:

Gender: Female. Age: In her eighties.

Appearance: A very short, elderly woman who wears a doctor's coat and walks with a cane resembling a syringe.

Personality: Kind but very strict, she reprimands heroes who recklessly harm themselves.

Abilities (Heal): Kissing the injured person stimulates their body's self-healing abilities at an extremely rapid rate (consumes the injured person's energy).

Himiko Toga:

Gender: Female. Age: 17.

Appearance: A teenage girl with blonde hair tied in two messy buns, small fangs, and cat-like eyes. She wears a school uniform and is equipped with blood-sucking gear.

Personality: Frighteningly cheerful, a yandere (a psychopath), who confuses love with the urge to stab and drink the blood of those she loves.

Ability (Transform): She can transform into an exact replica of anyone whose blood she drinks.

Rebels against the heroic system, often gathering under the umbrella of the "League of Villains."

Tomura Shigaraki:

Gender: Male. Age: Early twenties.

Appearance: A very thin young man with pale, dry skin, disheveled light blue hair, and red eyes. He wears several severed and mummified hands as decorations on his face and body.

Personality: Psychologically disturbed, he initially acts like an angry child, but develops into a cold-hearted leader who seeks to destroy society as a whole.

Abilities (Decay): Anything he touches with his five fingers disintegrates and crumbles into dust.

All For One:

Gender: Male. Age: Over 100 years old.

Appearance: A tall man wearing a fine formal suit. His face is completely disfigured and featureless (no eyes or nose) due to a previous battle, and he wears an advanced life-support mask.

Personality: The true mastermind. Calm, articulate, a dangerous psychological manipulator, and obsessed with control.

Abilities (All For One): Can steal and use the abilities of others, or transfer them to other people.

Kurogiri:

Gender: Male. Age: Unknown.

Appearance: A being made entirely of purple and black mist, with glowing yellow eyes. He wears an elegant waiter's suit and a metal brace around his neck.

Personality: Extremely polite, loyal to Shigaraki, and acts as his servant and tutor. (His tragic truth: He is the altered corpse of Aizawa's deceased friend, Oboro.)

Abilities (Warp Gate): Creates spatial gateways to transport people and objects across vast distances.

Dabi:

Gender: Male. Age: Early twenties.

Appearance: A young man with spiky black hair (later turning white). His body is covered in severe purple burns held to his unharmed skin by surgical staples. Personality: Mysterious, sadistic, hates the hero community, and harbors a deep personal grudge against Hero #2 (Endeavor).

Abilities (Cremation): Unleashes blue flames far hotter than ordinary flames, but they burn his body if used excessively.

They are the jewels of the academy and Aizawa's students. (All are between 15 and 16 years old.)

Izuku Midoriya / Deku:

Gender: Male.

Appearance: Curly green hair, wide green eyes, and freckles on his cheeks. His body is covered in scars from his reckless use of his Quirk.

Personality: Shy, highly observant and analytical, with an innately heroic heart.

Quirk: Born without a Quirk, but inherited One For All from All Might.

Katsuki Bakugo / Dynamight:

Gender: Male.

Appearance: Very spiky blond hair, sharp red eyes, and a perpetually furrowed brow.

Personality: Aggressive, arrogant, a perfectionist who always strives to win, and suffers from a superiority complex mixed with a hidden sense of inferiority.

Quirk (Explosion): His sweat produces a substance similar to nitroglycerin, which he ignites to create explosions from his palms. Shoto Todoroki:

Gender: Male.

Appearance: Half-parted hair (white on the right, red on the left). He has a gray and blue iris and a large burn scar on his left eye.

Personality: Cool and calm, he was withdrawn due to a harsh childhood with his father, but he has begun to open up to his friends.

Quiz (Half-Cold, Half-Hot): He generates ice from his right half and fire from his left.

Ochaco Uraraka / Uravity:

Gender: Female.

Appearance: Short brown hair in a bob cut, wide brown eyes, and small pink pads on her fingertips.

Personality: Cheerful and positive, she aspires to become a hero to earn money to help her impoverished parents.

Quiz (Zero Gravity): She can remove the effects of gravity from anything or anyone she touches with her fingers. Tenya Iida / Ingenium:

Gender: Male.

Appearance: Tall, wears glasses, has neat, dark blue hair, and possesses prominent motors in his calves.

Personality: Very serious, strictly adheres to the rules, is the class president, and comes from a noble family of heroes.

Abilities (Engine): Grants him incredible running speed and immense kicking power thanks to his leg motors.

U.A. Academy is Japan's premier school for training professional heroes.

Principal Nezu:

Gender: Male (animal). Age: Unknown.

Appearance: A mysterious creature combining features of a mouse, a dog, and a bear. He wears a smart formal suit and has a noticeable scar over his right eye.

Personality: Extremely polite, terrifyingly intelligent, and speaks eloquently.

Quality (High Spec): Grants him intelligence far exceeding that of humans, allowing him (as an animal) to live and think like a sophisticated human.

Present Mic / Hizashi Yamada:

Gender: Male. Age: 30-31 (Aizawa's close childhood friend).

Appearance: Long, sharply styled blond hair; he wears yellow sunglasses, a black leather jacket, and a megaphone around his neck.

Personality: Loud, very energetic, acts like a radio host, and is the complete opposite of the quiet Aizawa. Ability (Voice): He can amplify his voice to the point of destroying enemies' eardrums and shattering glass from a distance.

All Might / Toshinori Yagi:

Gender: Male. Age: Unknown (middle-aged).

Appearance: In his Heroic form, he is a large, muscular man with blond hair and a perpetually wide smile. In his True form (due to a severe injury), he is a very thin man with sunken eyes that sometimes bleed.

Personality: "Symbol of Peace." Brave, loyal, and puts the lives of others before his own.

Ability (One For All): An inherited ability that grants its user unparalleled physical strength, speed, and durability.

Midnight / Nemuri Kayama:

Gender: Female. Age: 31-32 years old.

Appearance: A beautiful woman with long black hair, wearing a tight-fitting Heroic outfit inspired by the Dominatrix, complete with a small mask and goggles. Personality: Cheerful and prone to showing off, but very serious in critical situations and a trusted companion to Aizawa.

Abilities (Somnambulist): She secretes a gas from her skin that puts anyone who smells it into a deep sleep; its effect is stronger on males.

Gender: Male.

Age: 30-31 years old.

Role: Underground Hero and Homeroom Teacher for Class 1-A at U.A. Academy.

Appearance: Tall (183 cm), with long, messy black hair that reaches his shoulders and a sparse, unkempt beard. His eyes are black with deep dark circles, always appearing tired and half-closed. When he uses his Quirk, his hair stands on end and his eyes glow red. He wears loose-fitting black tactical clothing, a waistband full of gear, and yellow goggles with horizontal slits to conceal his gaze. He wears a large, long scarf around his neck, which is not just a piece of cloth but his primary weapon.

Personality: Pragmatic, very strict, tends to be a recluse, and always appears exhausted (often seen sleeping in a yellow sleeping bag). He dislikes the media and public appearances. Despite his apparent harshness and coldness, he possesses a warm heart and a profound sense of responsibility towards his students, willing to sacrifice his life to protect them.

Abilities (Erasure):

This ability allows him to nullify the abilities of anyone who looks directly at him.

Weaknesses: The ability ends as soon as he blinks. It causes severe dryness of the eyes. It does not affect Mutant-type individuals who possess permanent physical alterations such as wings or tails.

Fighting Style: He employs high-level hand-to-hand combat techniques, utilizing a carbon fiber sash and special metal threads to restrain enemies and cling to buildings.

Time and Era: The story takes place in the near future on Earth (specifically in Japan). Human technological development has slowed considerably due to the sudden emergence of superpowers, causing society to focus on adapting to these changes rather than exploring space or developing new technologies.

Society (Quirks/Superpowers): Approximately 80% of the world's population is born with superpowers known as "Quirks." These Quirks typically manifest by the age of four.

Ordinary People (Quirksless): The remaining 20% ​​of humanity is born without any powers and is considered a minority in this era, often facing marginalization or bullying.

The System of Pro Heroes: Due to the misuse of Quirks by criminals, the profession of "Pro Hero" has emerged as a formal and prestigious government-sponsored occupation. Pro Heroes receive salaries, enjoy popularity, and have their own agencies.