Is Haikyuu!! Bakemono-tachi no Iku Tokoro hentai?
No
Rated PG-13 (Teens 13 or older) on MyAnimeList and not tagged as Hentai.

TV Special · PG-13 - Teens 13 or older
School, Shounen, Sports, Team Sports
Short Anime depicting the match between Fukuroudani Academy and Mujinazaka High School.
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