My Hero Academia

The universe of My Hero Academia (Boku no Hero Academia) is set in a futuristic version of our world where human evolution took a drastic leap, transforming superheroes into a regulated government profession.

1. The Origin of Quirks (Abilities)
   The phenomenon began in the city of Qingqing, China, with the birth of a baby who emitted light. From that event onward, people around the world began to manifest superhuman abilities known as Quirks (Gifts or Singularities). In the present day, approximately 80% of the world's population possesses some type of Quirk, while the remaining 20% ​​are born without abilities (Quirkless).
   The sudden emergence of these powers caused the collapse of modern society, periods of civil chaos, and the stagnation of conventional technological advancement, as humanity had to reorganize its laws and social structures.

The Age of Heroes and All Might
To curb the criminality of those who used their powers for evil (the Villains), governments created the official profession of Hero. Heroes are hired, funded, and ranked by the state according to their effectiveness and popularity.
The Symbol of Peace: After decades of instability, a hero named All Might (Toshinori Yagi) rose to the number one spot. His mere presence drastically reduced the crime rate in Japan and restored confidence to society, though it created a dangerous dependence on him.
UA Academy: It is the elite institution in charge of training future generations of heroes professionally, where students like Izuku Midoriya, Katsuki Bakugo and Shoto Todoroki begin their training.

The Central Conflict: One For All vs. All For One
The entire lore revolves around the rivalry between two unique powers born at the dawn of the Quirk era:
All For One (AFO): The ultimate villain. He possesses the ability to steal other people's Quirks, accumulate them, or transfer them at will. For generations, he ruled the Japanese underworld from the shadows.
One For All (OFA): It arose when AFO forcibly granted his seemingly "powerless" brother a strength-accumulating Quirk. However, the brother already possessed a latent and useless ability on its own: the capacity to transfer his own Quirk to another person. Both powers merged, creating an ability that accumulates physical power and the memories/Quirks of its previous wielders, inherited from generation to generation to defeat AFO.

Izuku Midoriya and the Decline of Society
Izuku "Deku" Midoriya is born without a Quirk, but his heroic spirit impresses All Might (whose body was severely weakened by an old battle against AFO). All Might chooses him as the ninth and final wielder of One For All.
As the story progresses, the facade of the "perfect society of heroes" begins to crumble:
The League of Villains / Paranormal Liberation Front: Led by Tomura Shigaraki (the grandson of All Might's mentor, manipulated since childhood by AFO), they recruit people marginalized and rejected by society due to the nature of their Quirks.
The Doomsday Collapse Theory: It posits that with each generation, Quirks blend together and become more complex and powerful, to a point where the human body can no longer control them, threatening the collapse of civilization.

Students of the UA Academy
U.A. is the most prestigious hero academy in Japan. Its students are primarily divided into Hero, Support, Management, and General departments.
Class 1-A (Heroes Course)
It is the main class of the series, characterized by having faced real combat situations since their first year.
Izuku Midoriya ("Deku"): The protagonist of the story. He was born without a Quirk, but inherited One For All from All Might. His power grants him devastating physical strength and, eventually, access to the Quirks of previous users.
Katsuki Bakugo ("Dynamight"): Izuku's childhood friend and rival. He possesses the Explosion Quirk, which allows him to secrete nitroglycerin-like sweat from his palms to create powerful explosions.
Shoto Todoroki ("Shoto"): Son of the hero Endeavor. His Half-Cold Half-Hot Quirk allows him to generate ice from the right side of his body and fire from the left.
Ochaco Uraraka ("Uravity"): Possesses Zero Gravity, an ability that allows her to eliminate the gravitational attraction of any object or person she touches with her fingertips.
Tenya Iida ("Ingenium"): Class representative. His Quirk Engine grants him exhaust pipes on his calves, allowing him to run at extreme speeds.
Eijiro Kirishima ("Red Riot"): Possesses Hardening, which allows him to stiffen his body until it becomes as hard as stone or metal.
Momo Yaoyorozu ("Creati"): Deputy. Her Quirk, Creation, allows her to manifest any inanimate object from her body fat, provided she knows its molecular structure.
Other notable members: Tsuyu Asui (Frog), Denki Kaminari (Electrification), Fumikage Tokoyami (Dark Shadow), Kyoka Jiro (Earphone Jack), Mina Ashido (Acid), Yuga Aoyama (Navel Laser), Mezo Shoji (Dupli-Arms), Mashirao Ojiro (Tail), Hanta Sero (Tape), Toru Hagakure (Invisibility), Koji Koda (Anivoice), Rikido Sato (Sugar Rush), Minoru Mineta (Pop Off).

Class 1-B (Heroes Course)
It's the rival class to 1-A. Although they tend to receive less media attention, they possess very versatile skills and exceptional teamwork.
Neito Monoma ("Phantom Thief"): The top student in the class. He possesses Copy, which allows him to duplicate and use the Quirk of anyone he touches for a certain amount of time.
Itsuka Kendo ("Battle Fist"): Class Representative of 1-B. She possesses Big Fists, which allows her to increase the size of her hands to a gigantic size to fight and protect her group.
Tetsutetsu Tetsutetsu ("Real Steel"): Possesses Steel, an ability similar to Kirishima's that turns his body into solid metal.
Ibara Shiozaki ("Vine"): Uses her hair made of plant thorns (Vines) to attack, defend, and capture enemies.
Juzo Honenuki ("Mudman"): Recommended for UA. His Quirk, Softening, allows him to liquefy any inorganic matter he touches.

The Big Three
Third-year students considered the best hero candidates in the entire academy, surpassing even the level of many professionals.
Mirio Togata ("Lemillion"): Possesses Permeability, an ability that allows him to pass through any solid matter.
Tamaki Amajiki ("Suneater"): Possesses Manifest, which allows him to transform his limbs into the characteristics of any food he has recently ingested.
Nejire Hado ("Nejire Chan"): Possesses Wave Motion, allowing her to convert her vitality into spiraling shock waves.
Other Classes and Departments
Hitoshi Shinso (Class 1-C - General): He possesses Brainwashing, which allows him to control the mind of anyone who verbally responds to his words. He is later transferred to the hero course.
Mei Hatsume (Class 1-H - Support Department): Brilliant inventor in charge of designing suits and support artifacts (Gadgets) for the heroes.

Professional Heroes
They are individuals authorized by the government to maintain order, fight villains, and carry out rescue operations.
All Might (Toshinori Yagi): The former Number 1 Hero and "Symbol of Peace". Wielder of One For All before passing it on to Deku.
Endeavor (Enji Todoroki): Shoto's father. He assumes the position of Number 1 Hero after All Might's retirement. He possesses Hellflame, which allows him to produce and manipulate flames at extreme temperatures.
Hawks (Keigo Takami): Hero No. 2. He possesses Fierce Wings, which grants him red feather wings that he can remotely control individually to attack, rescue, or sense vibrations.
Best Jeanist (Tsunagu Hakamada): Hero No. 3. He possesses Fiber Master, the ability to control the threads of any fabric, with denim being the most effective.
Eraser Head (Shota Aizawa): Homeroom teacher of Class 1-A. He possesses Erasure, a Quirk that allows him to temporarily nullify the powers of anyone he stares at.
Present Mic (Hizashi Yamada): English teacher at UA. His Quirk Voice allows him to amplify his voice to destructive sonic levels.
Gran Torino (Sorahiko Torino): Mentor of All Might and Deku. He possesses Jet, which allows him to expel air from the soles of his feet to move at high speed.
Other Notable Heroes: Mirko (Hero #5, Rabbit Quirk), Edgeshot (Hero #4, Foldabody Quirk), Kamui Woods (Arbor), Mt. Lady (Gigantification), Ryukyu (Dragon).

Villains
Villains are people who use their Quirks to commit crimes or try to dismantle the existing social structure.
Main Leaders and Antagonists
All For One (AFO): The crime lord of the Japanese underworld. His Quirk, All For One, allows him to steal, store, and grant powers to others at will.
Tomura Shigaraki (Tenko Shimura): Grandson of Nana Shimura (All Might's former mentor) and protégé of AFO. He possesses Decay, an ability that disintegrates any object or living being he touches with his fingers.

The League of Villains / Paranormal Liberation Front
Dabi (Toya Todoroki): Endeavor's eldest son. He possesses Cremation, which allows him to generate extremely destructive blue flames that are hotter than his father's.
Himiko Toga: Possesses Transformation, which allows her to adopt the physical appearance and voice of any person after ingesting their blood (and under certain conditions, their Quirks).
Twice (Jin Bubaigawara): Possesses Double, the ability to create exact duplicates of himself or others, requiring precise measurements of the person to be cloned.
Mr. Compress (Atsuhiro Sako): He possesses Compress, which allows him to compress anything or any object into small pocket marbles.
Spinner (Shuichi Iguchi): He possesses Lizard, which grants him reptilian attributes and the ability to climb surfaces. He becomes a symbol for marginalized mutants.
Kurogiri: A Nomu created from the body of Shirakumo (Aizawa's former friend). He possesses Warp Gate, allowing him to create portals of dark mist to transport himself and others.
Other Notable Villains
Stain ("The Hero Killer"): Believes that most of today's heroes are imposters motivated only by money and fame. He possesses Coagulation, temporarily paralyzing his victims by ingesting a sample of their blood.
Overhaul (Kai Chisaki): Former leader of the Shie Hassaikai yakuza. He possesses Overhaul, the ability to disassemble and reassemble matter at a molecular level through physical contact.

The Doomsday Collapse Theory of Quirks
(Quirk Singularity Doomsday Theory)
Originally formulated by Dr. Kyudai Garaki (All For One's scientist ally), this theory posits that with each generation, Quirks mix, mutate, and evolve, becoming exponentially more complex and powerful.
The problem: The human body evolves at a much slower rate than Quirks.
The consequence: There will come a generational point where abilities will be so destructive and uncontrollable that people's bodies will not be able to withstand them, causing the collapse of civilization (examples of this are Eri's uncontrolled power or Dabi's instability with his own flames).

The Nomus and Dark Biotechnology
The Nomus are humans surgically and genetically modified by Dr. Garaki under the orders of All For One.
How they work: An individual is implanted with multiple Quirks through biological alterations. Because a normal brain cannot process the mental load of using multiple Quirks simultaneously, Nomus lose their minds and remain in a vegetative state, only obeying direct commands.
Types of Nomus:
Low/Mid Range: Brute force without reasoning ability.
High-Ends: Advanced Nomus capable of thinking, speaking, adapting combat tactics, and improvising during battle.

Quirk Awakening
Under conditions of extreme emotional stress, physical trauma, or life-or-death situations, a Quirk may experience a sudden mutation or evolution known as Awakening.
This breaks the user's previous limitations and drastically expands the scope or nature of their power (as happened with Tomura Shigaraki's remote disintegration or the evolution of ice/fire in the Todoroki family).

Discrimination against Heteromorphic (Mutant) Quirks
Although the hero society seems utopian, it hides a deep problem of systematic segregation towards people with Heteromorphic Quirks (those whose power permanently alters their physical appearance with animal or inhuman features, such as Spinner, Shoji or Tokoyami).
In rural and less developed areas, mutants suffer violence, discrimination, and social rejection, which allowed the League of Villains to recruit thousands of people resentful of the system.

The VESTIGE: The Consciousness within the Quirks
Quirks are not just physical powers; they contain an imprint of the consciousness and personality of their original wielders.
In One For All, the 8 previous holders coexist in a mental plane or "world of vestiges" where they can communicate directly with Deku and advise him.
In All For One, the user feels the wills and laments of the people whose Quirks he has stolen, which demonstrates that a Quirk holds the very essence of the soul of its original user.

UA Principal Professors
Shota Aizawa ("Eraser Head") — Homeroom Teacher of Class 1-A
Quirk: Erasure. Allows him to nullify the Quirk of anyone he stares at. The effect breaks as soon as he blinks or loses sight of them.
Role and Philosophy: A clandestine hero who hates media attention. He is famous for being strict and compulsively expelling students who don't show true potential or a sense of self-preservation. Despite his cold and pragmatic exterior, Aizawa repeatedly risks his life to protect Class 1-A, teaching them that the life of a hero is not a game.
All Might (Toshinori Yagi) — Practical Training Instructor
Quirk: One For All (previously) / No Quirk.
Role and Philosophy: Although she lacked teaching experience at the beginning, she joins the UA faculty to protect Deku and guide him as her successor. She teaches practical combat, teamwork, and the ethical weight that comes with being a "Symbol of Peace."
Hizashi Yamada ("Present Mic") — English Teacher
Quirk: Voice. He can amplify the volume of his voice to ultrasonic levels capable of deafening or demolishing structures.
Role: Aizawa's close friend since childhood. He brought energy, enthusiasm, and eloquence to school events. His personal arc takes a dramatic turn when he discovers the truth behind his former classmate, Oboro Shirakumo (now known as Kurogiri).
Sekijiro Kan ("Vlad King") — Class 1-B Tutor
Quirk: Blood Control. He can manipulate his own blood once it leaves his body, hardening it to trap enemies or attack.
Role: Fiercely protective of his students in 1-B. Although he maintains a friendly rivalry with 1-A, he is a committed educator who seeks to bring out the maximum tactical performance from his group.

Other UA Teachers and Specialists
Nezu (The Principal): A strange creature (an animal that developed a Quirk) with the High Spec ability, which grants him intelligence superior to that of any human. He is the strategic mastermind of UA and designs the academy's defense systems.
Recovery Girl (Chiyo Shuji) — School Nurse: Possesses Healing, which drastically accelerates the body's natural regeneration process through a kiss, consuming the patient's own stamina energy.
Thirteen — Rescue Professor: Disaster Specialist. Her Quirk, Black Hole, creates a black hole at her fingertips that sucks in and disintegrates everything at an atomic level.
Cementoss (Ken Ishiyama) — Literature Professor: His Cement Quirk allows him to manipulate and shape cement and concrete upon contact, making him key to constructing UA's training scenarios.
Midnight (Nemuri Kayama) — Professor of Modern History of Heroism: Possesses Somniferum, an aroma that she emits from her skin and puts people to sleep (especially men).

Mentors Outside the UA
Student training does not happen solely in the classroom; external mentors provide a real-world perspective.
Gran Torino (Sorahiko Torino): Retired former hero and All Might's mentor. He was the one who taught Izuku how to master One For All by using his entire body as a constant flow (Full Cowl), instead of concentrating it in a single limb.
Nana Shimura: The seventh wielder of One For All and All Might's mentor. Her philosophy of "smiling in the most dangerous moments to inspire hope" defined All Might's legacy as the Symbol of Peace.
Wild Wild Pussycats: A team of professional heroes specializing in mountain rescue (Mandalay, Pixie-Bob, Ragdoll, and Tiger). They led the summer training camp for Classes 1-A and 1-B to strengthen their Quirks.

Shiketsu Academy (UA's great rival in the West)
Inasa Yoarashi ("Gale Force"): A first-year student with boundless energy and intensity. He possesses the Whirlwind Quirk, which allows him to control and manipulate air currents on a large scale with extreme precision.
Camie Utsushimiko ("Maboroshi"): A laid-back and hyperactive second-year student with a penchant for youthful slang. She possesses Glamour, an ability that allows her to emit a substance from her mouth to create temporary visual and auditory illusions.
Seiji Shishikura ("Meatball"): A very rigid and dedicated student, obsessed with the etiquette of what a hero should be. His Quirk, Meatball, allows him to manipulate the flesh of his own body or that of his opponents by touching them, kneading them into grotesque, helpless balls of meat.
Nagamasa Mora ("Chewbacca"): Representative of the Shiketsu class. His Quirk, Hair Extension (Extension), allows him to manipulate at will the enormous amount of hair that covers his body to trap or attack.

Ketsubutsu Academy
Yo Shindo ("Grand"): A third-year student with a boyish face who hides a cunning and calculating personality. He possesses Vibrate, an ability that allows him to vibrate everything he touches at destructive frequencies (which causes dizzy aftereffects in his own body if he overdoes it).

Civilians and Plot Keys
Eri: Granddaughter of the former leader of the Yakuza (Shie Hassaikai). She possesses the extremely rare and dangerous Quirk Rewind, capable of rewinding a person's body to a previous state (allowing her to heal wounds, reverse mutations, or even erase someone's existence if she loses control). Her power is key to the healing of several characters.
Kota Izumi: An orphan boy whose parents (the heroes Water Hose) died fighting the villain Muscular. He initially hated heroes and Quirks, but his views change drastically after being rescued by Izuku Midoriya.
Inko Midoriya: Izuku's mother. She possesses a minor Quirk that allows her to attract small objects. She represents the emotional impact, worry, and human cost of a hero's life within an ordinary family.
Fuyumi and Natsuo Todoroki: Shoto's older siblings and Endeavor's children. Fuyumi seeks to reunite and repair the shattered Todoroki family, while Natsuo harbors a deep resentment toward his father for past abuses and the loss of Toya.

Authorities and Scientists
Dr. Kyudai Garaki (Daruma Ujiko): The mad scientist and right-hand man of All For One. He possesses the Longevity Quirk (which allows him to double his lifespan at the cost of physical speed). He is the biological mastermind behind the creation of the Nomus and the experiments with Quirk Singularity.
Lady Nagant (Kaina Tsutsumi): A former pro hero and elite assassin for the Hero Public Safety Commission. She possesses the Rifle Quirk, which transforms her right arm into a sniper rifle and her hair into ammunition. After discovering government corruption (which secretly assassinated people to maintain a false image of peace), she rebelled and was imprisoned in Tartarus until being recruited by AFO.
Keigo Takami (Hawks' father) and the Public Safety Commission: The Hero Public Safety Commission is the government body that regulates hero society, but often resorts to shady methods and covert operations to maintain control.

The Bearers of One For All (The Vestiges)
In addition to All Might and Izuku Midoriya, the previous holders of One For All reside in Deku's consciousness, offering him their abilities:
Yoichi Shigaraki (1st Holder): Younger brother of All For One. He was born weak but possessed the transferable ability that gave rise to OFA.
Kudo (2nd Holder): Leader of the resistance against AFO in the dark era. Quirk: Gearshift (changes the speed of things he touches, ignoring the laws of physics).
Bruce (3rd Holder): Kudo's partner. Quirk: Fa Jin (accumulates kinetic energy with repetitive movement to release it in bursts).
Hikage Shinomori (4th Holder): Lived as a hermit to cultivate power. Quirk: Danger Sense.
Daigoro Banjo ("Lariat") (5th Wielder): Quirk: Blackwhip.
In (6th Carrier): Quirk: Smokescreen.
Nana Shimura (7th Carrier): All Might's mentor. Quirk: Float.

Academies and Training Institutions
UA Academy (Yūei High School): Located in Musutafu, Japan. It is the birthplace of the country's greatest heroes. Following a societal collapse, its facilities are transformed into UA Barrier, a mobile fortress with sections that move on maglev rails to protect thousands of evacuated civilians.
Shiketsu Academy: Located in western Japan, it is the main rival of UA. It is distinguished by its strict military discipline and traditional approach to heroism.
Unforeseen Simulation Joint (USJ): A facility within UA designed by Thirteen featuring various natural disaster scenarios (fires, floods, landslides) for training rescue operations. It is the site of the League of Villains' first mass attack.

Government Facilities and Prisons
Tartarus Prison: A maximum-security floating prison built on an island far from the coast. Designed exclusively to hold the world's most dangerous villains (such as All For One, Overhaul, and Stain). It features automated systems that fire instantly at the slightest indication of a Quirk activation.
Headquarters of the Hero Public Safety Commission: The nerve center in Tokyo from where the government manages licenses, hero classifications, and covert intelligence operations

Villain Bases and Ghettos
Kurogiri's Bar (Kamino District): Hidden in a run-down alley, it served as the League of Villains' first headquarters before its destruction by the hero rescue forces.
Jaku General Hospital: On the surface, it appears to be a public charity hospital run by the respected Dr. Kyudai Garaki. Underground, it houses a secret biotechnology laboratory where the Nomu were created and Tomura Shigaraki underwent body modification.
Headquarters of the Paranormal Liberation Front (Deika City): City secretly controlled by the Superpower Liberation Army, converted into the military command center of the alliance between Shigaraki and Re-Destro.
Villa Hideout / AFO Underground Lab: Multiple interconnected hideouts in the Japanese subsoil where All For One operated from the shadows for decades.

Historical Battlefields
Kamino Ward: The city that was devastated during the final confrontation between All Might and All For One. This place marks All Might's official retirement and the end of the "Era of Peace".
Shie Hassaikai Headquarters: The mansion and underground tunnel network of the yakuza led by Overhaul, where they held Eri captive to manufacture Quirk eraser bullets.
I-Island: A mobile, neutral artificial island inhabited by over 10,000 scientists from around the world dedicated to technological research and the development of support suits for Quirks.