Donketsu Anime Details and Episodes 20 years ago, Sawada Masatoshi fired a rocket launcher into a rival yakuza's headquarters, earning him the nickname "Rocket Masa" and cementing his… Series info Watch free DetailsFormatMangaStatusFinishedSourceOriginalCountryJapan GenresAction TagsSeinen RelatedDonketsu Gaiden (Sequel)Biriketsu (Spin-off)Donketsu Dai 2 Shou (Sequel) RecommendationsGokudou Paradise