Sebuah anime adaptasi telah mengumumkan di Isu dariWeekly Young Jump ke-15 pada 10 Mac 2015 Siri musim pertama telah digarap oleh Shingo Natsume di Madhouse & ditulis oleh Tomohiro Suzuki. Siri ini juga menampilkan desain karakter oleh Chikashi Kubota,animation director,[16] music by Makoto Miyazaki and artdesign by Shigemi Ikeda and Yukiko Maruyama. KenHashimoto serves as the series color key artist, AkaneFushihara is the director of photography and Kashiko Kimuraserves as the series editor, and Shoji Hata does sound design.[16] The opening theme song is "The Hero!! ~Ikareru Ken niHonō o Tsukero~" (THE HERO!! ～怒れる拳に火をつけろ～, "The Hero!!Set Fire to the Furious Fist") by JAM Project, & lagu penutup adalah "Hoshi Yori Saki ni Mitsukete Ageru" (星より先に見つけてあげる,"I'll Find It Before the Stars for You") dipopulerkan oleh Hiroko Moriguchi. & Keep Being You dipopulerkan oleh Isyana SarasvatiOne-Punch Man's first season aired in Japan between October5, 2015 and December 21, 2015 on TV Tokyo, airing at laterdates on TVO, TVQ, KBS, BS Japan, and AT-X,[16][17] and ranfor 12 episodes. The season streamed on Niconico and wassimulcast on Hulu, Daisuki, and Viz Media's Neon Alley service.[18] A preview screening was held in the Saitama City CulturalCenter on September 6, 2015.[18] The series is licensed by VizMedia in North America,[19] and by Kaze UK in the UnitedKingdom.[20] An original video animation was released withthe tenth manga volume on December 4, 2015.[21] AdditionalOVA episodes are included with Blu-ray Disc & DVD volumesof the season, the first of which was released on December 24,2015.Murata announced in the last weeks of the first season's airingschedule that he is working on making a second season areality, but has not confirmed it is in development as ofDecember 2015.