

12 Episodes
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.

Saitama
MAIN
VA: Makoto Furukawa

Genos
MAIN
VA: Kaito Ishikawa

Ikemen Kamen Amai Mask
SUPPORTING
VA: Mamoru Miyano

Asura Kabuto
SUPPORTING
VA: Unshou Ishizuka

Ground Dragon
SUPPORTING
VA: Shinya Hamazoe

Kamikaze
SUPPORTING
VA: Kenjirou Tsuda

Zeniru
SUPPORTING
VA: Hiroki Gotou

Ago no Wareta Gaki
SUPPORTING
VA: Ami Naitou

Groribas
SUPPORTING
VA: Shinya Hamazoe

Blue Fire
SUPPORTING
VA: Yoshiaki Hasegawa

Smile Man
SUPPORTING
VA: Reigo Yamaguchi

Puri-Puri Prisoner
SUPPORTING
VA: Masaya Onosaka

ONE
Original Story

Yuusuke Murata
Original Character Design

Shingo Natsume
Director

Shinichirou Ushijima
Assistant Director

Tomohiro Suzuki
Series Composition

Chikashi Kubota
Character Design

Takuya Igarashi
Title Logo Design

Shigemi Ikeda
Art Director

Yukiko Maruyama
Art Director

Shigemi Ikeda
Art Design

Kayoko Tomono
Art Design

Shuuichi Ookubo
Art Design