Rikudou Anime Details and Episodes Riku experienced a lot of pain and tragedy in his early life. After his father's death, a former-boxer Yakuza man taught him how to do a basic punch, and… Series info Watch free DetailsFormatMangaStatusFinishedScore77/100SourceOriginalCountryJapan GenresActionDramaSports TagsBoxingSeinenMale ProtagonistPrimarily Male CastEnsemble CastTragedyHeterosexualYakuzaProstitutionGore RecommendationsHajime no IppoHolylandShamoAshita no JoeBLACK-BOXRRRBatuque CharactersRiku AzamiKyousuke Tokorozawa (Supporting)Yuki Naeshiro (Supporting)Shinji Baba (Supporting)Kaede Hyoudou (Supporting)