More details
Synopsis, trailer, and supporting anime info.
Synopsis
Saitama has a rather peculiar hobby, being a superhero, but despite his heroic deeds and superhuman abilities, a shadow looms over his life. He's become much too powerful, to the point that every opponent ends up defeated with a single punch. The lack of challenge has driven him into a state of apathy, as he watches his life pass by having lost all enthusiasm, at least until he's unwillingly thrust in the role of being a mentor to the young and revenge-driven Genos.
Genres
Production
MADHOUSE
Quick facts
Start date: Oct 5, 2015
Popularity: 738,634
Favorites: 31,699
Source: MANGA
Trailer
Characters
Main cast and voice actors.
Saitama
MAIN
Makoto Furukawa
Genos
MAIN
Kaito Ishikawa
Staff
Key production staff.
ONE
Original Story
Yuusuke Murata
Original Character Design
Shingo Natsume
Director
Shinichirou Ushijima
Assistant Director
Tomohiro Suzuki
Series Composition
Chikashi Kubota
Character Design
Where to watch
Merged availability from AniList, Jikan, and JustWatch, then verified before showing.
Licensed platforms and official anime pages.
Legal episode links and free-to-watch sources when available.