# One (manga artist)
**ONE** (ワン) is the pseudonym of a Japanese manga artist born in 1986, best known as the creator of *One-Punch Man* and *Mob Psycho 100*[1](https://mangapedia.com/ONE-y1spysiuc). He began publishing manga on personal websites while a university student, rose to fame through free web serialization rather than a magazine debut, and now works both as a solo author-artist and as the original author (原作) of series drawn by other artists[1](https://mangapedia.com/ONE-y1spysiuc).
| Key fact | Detail |
|---|---|
| Born | 1986, Niigata Prefecture; later moved to Kounosu, Saitama Prefecture[1](https://mangapedia.com/ONE-y1spysiuc) • [2](https://whereanime.com/staff/one) |
| Breakthrough | *One-Punch Man*, serialized from 2009 on the web manga site Shintosha and then on his personal site, where it became a hit[1](https://mangapedia.com/ONE-y1spysiuc) • [3](https://www.comitia.co.jp/30th/web_chronicle.pdf) |
| Professional debut | *Mob Psycho 100*, April 2012, on Shogakukan's web manga site Ura Sunday[1](https://mangapedia.com/ONE-y1spysiuc) |
| Major collaboration | Remake of *One-Punch Man* with artist Yusuke Murata, from June 2012 on Shueisha's Tonari no Young Jump[1](https://mangapedia.com/ONE-y1spysiuc) |
| Awards | 62nd Shogakukan Manga Award, shonen category, for *Mob Psycho 100* (2017); 49th Kodansha Manga Award, general category, for *Versus* (2025)[1](https://mangapedia.com/ONE-y1spysiuc) |
| Recent works | *Versus* (2022, art by Kyotaro Azuma) and *Bug Ego* (2023, art by Kiyoto Shitara)[1](https://mangapedia.com/ONE-y1spysiuc) • [4](https://comicbook.com/anime/news/one-punch-man-manga-shonen-jump-bug-ego/) |
## Webcomic beginnings
ONE started publishing manga on a personal website while a university student. In 2009, after releasing a one-shot version, he began serializing *One-Punch Man* on the web manga site Shintosha (新都社); the series later moved to his personal site, where it grew into a major hit[1](https://mangapedia.com/ONE-y1spysiuc). A Comitia retrospective profile notes that the *One-Punch Man* he serialized on his personal site from 2009 became a hit on comic web and a popular work thereafter[3](https://www.comitia.co.jp/30th/web_chronicle.pdf). During this period he also drew the webcomic *Makai no Ossan* (魔界のオッサン, *Old Man of the Demon World*), which ran on Tonari no Young Jump and was completed on June 15, 2013[5](https://d.namu.moe/w/ONE%28%EB%A7%8C%ED%99%94%EA%B0%80%29).
## The Murata collaboration and anime adaptations
In 2012, as the webcomic's popularity grew, the professional manga artist [Yusuke Murata](https://www.edgepedia.org/yusuke-murata) approached ONE asking to redraw the series for official digital serialization[6](https://animechicago.com/articles/brief-history-one-punch-man/). The remake began in June 2012 on Shueisha's web manga site Tonari no Young Jump, with ONE continuing to write the story while Murata handled the art[1](https://mangapedia.com/ONE-y1spysiuc). This arrangement has continued: ONE remains the original author of the digital *One-Punch Man* manga while Murata draws it[1](https://mangapedia.com/ONE-y1spysiuc).
Both of ONE's flagship works reached television. A TV anime based on the Murata remake of *One-Punch Man* aired in October 2015, and the TV anime of *Mob Psycho 100* aired in July 2016[1](https://mangapedia.com/ONE-y1spysiuc). *Mob Psycho 100* ran for three seasons, ending in 2022, and celebrated its tenth broadcast anniversary in 2026 with new illustrations by ONE[7](https://as.com/meristation/manga-y-anime/es-uno-de-los-mejores-animes-de-la-historia-y-se-prepara-para-celebrar-a-lo-grande-una-fecha-muy-especial-f202605-n/).
## Mob Psycho 100 and professional debut
*Mob Psycho 100* marked ONE's formal professional debut when it began serialization in April 2012 on Ura Sunday, Shogakukan's web manga site[1](https://mangapedia.com/ONE-y1spysiuc). Unlike *One-Punch Man*, ONE drew the series himself, and it follows Shigeo Kageyama, nicknamed Mob, a timid boy with immense psychic power who suppresses his emotions to keep them under control[7](https://as.com/meristation/manga-y-anime/es-uno-de-los-mejores-animes-de-la-historia-y-se-prepara-para-celebrar-a-lo-grande-una-fecha-muy-especial-f202605-n/). The work won the 62nd [Shogakukan Manga Award](https://www.edgepedia.org/shogakukan-manga-award) in the shonen category, announced on January 23, 2017[1](https://mangapedia.com/ONE-y1spysiuc). A spin-off, *Reigen* (2018), and an official fanbook have also been published under his name[1](https://mangapedia.com/ONE-y1spysiuc) • [8](https://shogakukan-comic.jp/book?isbn=9784098514533).
## Art style
ONE's drawing is deliberately unpolished. A [Crunchyroll](https://www.edgepedia.org/crunchyroll) feature on the "heta-uma" (bad-but-good) movement describes his line work in *Mob Psycho 100* as much rougher than the accepted standard of polish seen in commercial manga publications, a legacy of his start as a webcomic artist[9](https://www.crunchyroll.com/news/features/2016/8/28/feature-mob-psycho-100-and-the-heta-uma-movement). In an interview with the manga artist Reiji Yamada, ONE described an art style with an unbothered attitude toward verisimilitude, prioritizing the expression of ideas over complicated linework[10](https://comix-as-art-history.weebly.com/reading-blog/archives/06-2022/2). For projects where he judged his own drawing insufficient for his vision, he has instead worked with dedicated artists[11](https://www.animeexplained.com/news/interview-with-one-punch-man-author-one-on-his-new-series-versus/).
## Versus and Bug Ego
**Versus.** On November 26, 2022, ONE began *Versus* (バーサス) in Kodansha's Monthly Shonen Sirius, with art by Kyotaro Azuma; it was his first completely new work in about ten years[1](https://mangapedia.com/ONE-y1spysiuc). In an interview marking the first volume's release, ONE said he wanted to make an isekai (genre where a protagonist travels to another world) story with a different approach from others in the genre, imagining multiple alternate worlds whose apex predators storm into a single world, and then considering how humans would fight back[11](https://www.animeexplained.com/news/interview-with-one-punch-man-author-one-on-his-new-series-versus/). Bose serves as compositor on the series[11](https://www.animeexplained.com/news/interview-with-one-punch-man-author-one-on-his-new-series-versus/). *Versus* placed 15th in the comics category of the 2024 Tsutaya Next Manga Award and won the 49th Kodansha Manga Award in the general category on May 12, 2025[1](https://mangapedia.com/ONE-y1spysiuc).
**Bug Ego.** ONE's next collaboration, *[Bug Ego](https://www.edgepedia.org/bug-ego)* (バグエゴ), debuted in 2023 in Shueisha's Weekly Young Jump with art by Kiyoto Shitara[4](https://comicbook.com/anime/news/one-punch-man-manga-shonen-jump-bug-ego/). VIZ Media, which publishes it in English, describes the premise as two students exploiting glitches that distort reality, with story by ONE and art by Shitara[12](https://www.viz.com/shonenjump/chapters/bug-ego).
## Recognition
ONE's career is frequently cited as an example of web-native success in manga: he built an audience through free online serialization, gained a professional collaborator in Murata through that audience, and then debuted commercially with *Mob Psycho 100*[1](https://mangapedia.com/ONE-y1spysiuc) • [6](https://animechicago.com/articles/brief-history-one-punch-man/). His two flagship series have each received long-running anime adaptations, and his later works have earned major industry awards in Japan[1](https://mangapedia.com/ONE-y1spysiuc).
## References
1. [ONE（漫画家）, マンガペディア](https://mangapedia.com/ONE-y1spysiuc)
2. [ONE: Anime Staff Credits, WhereAnime](https://whereanime.com/staff/one)
3. [COMITIA 30th Anniversary Web Chronicle (ONE profile)](https://www.comitia.co.jp/30th/web_chronicle.pdf)
4. [One-Punch Man Creator Has a New Manga Coming to Shonen Jump, ComicBook.com](https://comicbook.com/anime/news/one-punch-man-manga-shonen-jump-bug-ego/)
5. [ONE(만화가), Namu Wiki](https://d.namu.moe/w/ONE%28%EB%A7%8C%ED%99%94%EA%B0%80%29)
6. [A Brief History: One-Punch Man, AnimeChicago](https://animechicago.com/articles/brief-history-one-punch-man/)
7. [Mob Psycho 100 10th anniversary coverage, MeriStation (AS.com)](https://as.com/meristation/manga-y-anime/es-uno-de-los-mejores-animes-de-la-historia-y-se-prepara-para-celebrar-a-lo-grande-una-fecha-muy-especial-f202605-n/)
8. [モブサイコ100 公式ファンブック, Shogakukan Comic](https://shogakukan-comic.jp/book?isbn=9784098514533)
9. ["Mob Psycho 100" and the "Heta-Uma" Movement, Crunchyroll News](https://www.crunchyroll.com/news/features/2016/8/28/feature-mob-psycho-100-and-the-heta-uma-movement)
10. [COMIX AS ART HISTORY reading blog (Yamada Reiji interview with ONE)](https://comix-as-art-history.weebly.com/reading-blog/archives/06-2022/2)
11. [One Punch Man Author ONE Talks New Work Versus In Exclusive Interview, Anime Explained](https://www.animeexplained.com/news/interview-with-one-punch-man-author-one-on-his-new-series-versus/)
12. [Bug Ego, VIZ Media](https://www.viz.com/shonenjump/chapters/bug-ego)
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*Topic: Encyclopedia › Arts and culture › Literature and written works › Writers and literary biographies › Children's, comics, and media-genre writers › Comics and graphic-novel writers*
*Initially written Sep 17, 2026 · Reviewed: Sep 18, 2026; Sep 19, 2026; Sep 30, 2026; Oct 25, 2026 · Edited: Sep 18, 2026; Sep 30, 2026; Oct 12, 2026; Oct 25, 2026 · Last review: Oct 25, 2026*
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