Seishun Kippu Anime Details and Episodes Music video of the song Seishun Kippu from the OP of "Cool Doji Danshi", performed by Mafumafu Series info Watch free DetailsFormatMusicStatusFinishedEpisodes1Duration4 minScore65/100CountryJapan TagsTrainsMale ProtagonistTime ManipulationSchool RelatedCool Doji Danshi (Parent Story) RecommendationsveilKagirinaku Hai Iro eJailbreakBetsu Sekai