Is Cowboy Bebop: Yose Atsume Blues hentai?
English title: Cowboy Bebop: Session XX - Mish-Mash Blues
No
Rated R (17+ (violence & profanity)) on MyAnimeList and not tagged as Hentai.
TV Special · 1998 · 1 episodes · R - 17+ (violence & profanity)
Adult Cast, Sci-Fi, Space
Due to the violence portrayed in the Cowboy Bebop world and violence in Japanese schools, the series was briefly cancelled and an extra session was created as a final episode to the first thirteen episodes aired. Called "Session XX: Mish-Mash Blues," a compilation of clips from previous episodes, it aired on June 26, 1998 on TV Tokyo. The episode was never released on DVD. In it, the characters provide a philosophical commentary and end with the words: This Is Not The End. You Will See The Real "Cowboy Bebop" Someday! (Source: AniDB)
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