My Hero Academia (Boku no Hero Academia) builds its entire world around one question: what if 80% of humanity was born with a superpower - a Quirk - and the other 20% wasn't? This guide sorts out who's who and which Quirk each key character wields, and covers something most character rundowns skip: why UA High School's motto, "Plus Ultra", is literally Spain's national motto, and what real Japanese tradition sits behind the series' superhero genre.
What is a Quirk: My Hero Academia's power system
A Quirk (個性, kosei, literally "individuality") is each person's unique special ability in the series' world. According to the fiction itself, the first documented case appears generations ago in a baby able to emit light; Quirks then spread and mixed genetically across the population until they became standard in roughly 80% of humanity. The remaining 20%, with no power at all, are called "Quirkless".
| Character | Quirk | What it does |
|---|---|---|
| Izuku Midoriya | One For All | Stockpiles the strength of every previous holder; born Quirkless and inherits it from All Might. |
| Katsuki Bakugo | Explosion | Secretes a nitroglycerin-like sweat from his palms that he can detonate at will. |
| Shoto Todoroki | Half-Cold Half-Hot | Generates fire with his right side (inherited from his father Endeavor) and ice with his left (from his mother Rei). |
| Ochaco Uraraka | Zero Gravity | Nullifies gravity on anything she touches with all five fingertips; overuse causes nausea. |
| Tenya Iida | Engine | Engine-like organs in his calves that vent exhaust from his ankles for extreme running speed. |
| Tsuyu Asui | Frog | Full frog physiology: long tongue, powerful jumps, camouflage and underwater breathing. |
| All Might | One For All (previous) | Seventh holder of the Quirk, the "Symbol of Peace" for decades before passing it on to Izuku. |
Class 1-A's leads
Izuku Midoriya (Deku)
Born without a Quirk in a world where lacking one invites constant mockery. All Might, his favorite hero, decides to pass on One For All after seeing him risk his life for a classmate with no power at all, making him the eighth successor of a Quirk that traces back generations.
Katsuki Bakugo
Izuku's childhood rival and classmate, he wields Explosion with a combat precision that makes him, from the entrance exam onward, one of Class 1-A's strongest students. His explosive temper - literally and figuratively - hides a slow evolution toward real teamwork across the series.
Shoto Todoroki
Son of the No. 1 hero Endeavor, raised to inherit and surpass All Might's legacy by force-combining his father's fire with his mother's ice. At the start of the story he refuses to use his fire side out of resentment toward his father, and overcoming that block is central to his arc.
Ochaco Uraraka
Trains to be a hero for a very unheroic, very honest reason: earning money to help her family financially. Her zero-gravity Quirk makes her one of the most versatile students in aerial combat and rescue work.
Teachers and villains: All Might vs. All For One
Facing the heroes stands All For One, a villain who can steal, stockpile and grant other people's Quirks at will, and the very origin of One For All: the Quirk Izuku now wields began as his Quirkless younger brother's strength-stockpiling power. His successor, Tomura Shigaraki, leader of the League of Villains, wields Decay: it disintegrates anything he touches with all five fingers at once. Among the teachers, Shota Aizawa stands out (Erasure, able to temporarily cancel any Quirk just by staring without blinking), along with Enji "Endeavor" Todoroki (Hellflame, pure fire, the No. 1 hero after All Might's retirement).
The real Japanese culture behind My Hero Academia
This is what sets this guide apart from a simple power list. My Hero Academia doesn't build its world from scratch - it crosses real Japanese traditions with a Spanish historical wink almost nobody explains.
"Plus Ultra": the motto UA shares with Spain
"Plus Ultra!" is All Might's battle cry and UA High School's official motto throughout the series. The phrase sounds Latin and grandiose, but it isn't a Japanese invention: it has been Spain's national motto since the 16th century, adopted by Emperor Charles I (Charles V of Germany) to replace the old "Non Plus Ultra" ("nothing further beyond") traditionally inscribed on the Pillars of Hercules at the Strait of Gibraltar. Today it still appears, in its "Plus Ultra" form, wrapped around the Pillars of Hercules on Spain's national coat of arms, visible on the Spanish flag - and, per the most popular theory, it's the origin of the dollar sign ($), inspired by those same pillars with a ribbon coiled around them on old Spanish colonial shields and coins.
Tokusatsu: Japan's real superhero genre
My Hero Academia's aesthetic of costumed heroes, powers and public rankings connects directly to tokusatsu (特撮, "special filming"), Japan's live-action superhero genre that starts with Moonlight Mask (1958) and takes off with Ultraman (1966) and Kamen Rider (1971) - the genre that, years later, seeded franchises like Power Rangers in the West. My Hero Academia carries that "costumed hero with a specific power" tradition into manga and anime format, adding the openly stated influence of American superhero comics.
A licensed society of heroes: a mirror of Japanese bureaucracy
In the series, working as a professional hero requires passing an official licensing exam, very close in spirit to the qualification exams (shikaku) that in real Japan are a requirement for dozens of professions, from lawyer to fugu chef. The "Provisional Hero License Exam," with its pressure, its rankings and its razor-thin margin for error, works as a recognizable exaggeration of that real Japanese exam-as-gatekeeper culture.
Common misconceptions about Quirks
- Assuming every Quirk is combat-ready: the series keeps insisting that seemingly useless Quirks (like Izuku's mother's, which pulls small objects toward her for a few seconds) have value when used cleverly; combat isn't the only application.
- Mixing up One For All with an ordinary Quirk: it's a "stockpiling" Quirk that grows with each holder, not a fixed ability - which is why Izuku keeps unlocking inherited abilities years after receiving it.
- Believing "Plus Ultra" was invented for the series: it's Spain's real historical motto, not a Japanese phrase or fantasy Latin.
- Ignoring the tokusatsu roots: treating My Hero Academia as a purely "American-style" superhero product overlooks six decades of Japanese costumed-hero tradition that came before it.
Where to watch My Hero Academia legally
My Hero Academia is available on Crunchyroll with subtitles and English dub, including the movies. If you want to dive deeper into every Quirk and arc with the manga's full detail, Kohei Horikoshi's complete collection adds nuance the anime adaptation condenses.
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Frequently asked questions about My Hero Academia
What is a Quirk in My Hero Academia?
A Quirk is the series' name for an individual superpower. In the fiction, 80% of the world's population is born with one after generations of genetic mutation from a first documented case; the remaining 20%, like Izuku Midoriya at birth, is "Quirkless".
What is One For All, Izuku Midoriya's Quirk?
One For All is a strength-stockpiling Quirk passed down from user to user for generations, adding each previous holder's power to the next. All Might passes it on to Izuku Midoriya, a boy born without a Quirk, making him its eighth successor.
Who are the main villains in My Hero Academia?
The two central villains are All For One, who can steal, stockpile and grant other people's Quirks, and Tomura Shigaraki, his successor and leader of the League of Villains, whose Quirk Decay disintegrates anything he touches with all five fingers.
Is UA's motto "Plus Ultra" actually real?
The phrase itself is real, but it isn't Japanese: "Plus Ultra" has been Spain's national motto since the 16th century, adopted by Charles I and engraved on the national coat of arms alongside the Pillars of Hercules. UA High School in the fiction uses the exact same Latin phrase.
How many characters have no Quirk in the series?
In the fiction, around 20% of the population is "Quirkless". Izuku Midoriya is the most relevant case: he's born without a Quirk and only gains a superpower when All Might passes One For All on to him at the start of the story.