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Rosie is a martial artist who built his craft around reading an opponent's mind, the self-styled Psycho Analysis Martial Arts. Cornered after a crushing tournament loss, he swallowed a Monster Cell offered by Gouketsu to save his own skin, turned into a Mysterious Being, and was killed moments later by Choze.

English Va: Christian la Monte
Japanese Va: Fumiya Imai
Status: Deceased
Disaster Level: Unknown
First Appearance (Manga): Chapter 60: Admission
First Appearance (Anime): Episode 17
Allegiances: Monster Association
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Appearance

In his human days Rosie cut a sharp figure: a young man with pale eyes and grey hair swept to the left over a shaved undercut, dressed in a blue suit, a white shirt, and a red tie patterned with diamonds. Consuming the Monster Cells reshaped him into something bulkier and more muscular, with strange growths jutting from his back.

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Personality

Ambition defined Rosie, who dreamed of reinventing martial arts through psychology and reason. Beneath that drive sat a coward, though, one ready to throw away his own art and even his humanity to stay alive, which is why he lunged for the Monster Cell ahead of everyone else. Once transformed he turned cruel and vindictive, seizing the chance to batter a badly hurt Dave in payback for beating him earlier.

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History

Rosie entered the Super Fight tournament at the C-City stadium for the first time, and watching Suiryu crush Max left him shaken by the fighter's power. His own run ended fast when Dave overwhelmed him. As he was carried off for treatment, the Three Crows seized him and hauled him back to the arena alongside Dave and Bazuzu, where Gouketsu laid out a grim choice: eat a Monster Cell and join the Monster Association or be killed. Rosie took the offer first. Newly monstrous, he flung the wounded Dave far into the air to settle their score, but his triumph lasted only seconds before Choze broke his neck. Even as a monster his gains were modest; his strength let him toss the heavy Dave one-handed and his human body had once endured being slammed into the arena floor, yet a human Choze put him down with ease. His signature style, meant to read and exploit an enemy's mind, never even got a chance against Dave's blunt, crushing approach.

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Frequently Asked Questions

Who is Rosie in One Punch Man?

Rosie is a martial artist in One Punch Man who developed his own style called Psycho Analysis Martial Arts. After losing badly in the Super Fight tournament, he swallowed a Monster Cell to save himself, transformed into a monster, and was killed moments later.

What is Rosie's fighting style?

Rosie fights using a self-styled discipline called Psycho Analysis Martial Arts, built around reading and exploiting an opponent's mind rather than overpowering them physically.

How did Rosie become a monster?

Rosie became a monster after Gouketsu offered him a Monster Cell during the Super Fight tournament, and he swallowed it ahead of everyone else to avoid being killed.

Who killed Rosie?

Choze killed Rosie by breaking his neck, only seconds after Rosie had transformed into a monster and thrown the wounded Dave into the air.

What happened to Rosie during the Super Fight tournament?

Rosie was overwhelmed by Dave in his first match at the Super Fight tournament, and while being carried off for treatment he was seized by the Three Crows and brought before Gouketsu, who forced him to choose between eating a Monster Cell or being killed.

Sources & Information

Looking for more on Rosie? The One-Punch Man Wiki on Fandom has a dedicated page with community notes.

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This content is original writing by Daddy Jim Headquarters based on the One-Punch Man anime series, manga, and official materials. One-Punch Man was created by ONE and Yusuke Murata, published by Shueisha, and animated by J.C.Staff and Madhouse. All rights to One-Punch Man and its characters belong to their respective owners. Episode and chapter references are cited where applicable.

Rights holders

  • Created byONE and Yusuke Murata
  • Published byShueisha
  • Animated byJ.C.Staff
  • Animated byMadhouse

All rights belong to their respective owners.

Character and scene imagery on this site is original artwork by Daddy Jim Headquarters, not screenshots or licensed imagery. Official cover art is used on three types of pages for editorial commentary:

  • Movie pages: theatrical posters and key visuals, credited to J.C.Staff, Madhouse and Shueisha.
  • Game pages: official box art, credited to the game's respective publishers.
  • Manga chapter pages: volume covers, credited to Shueisha and ONE and Yusuke Murata.

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