Is Hantsu x Trash hentai?
English title: Sexy and Stupid Water Polo Comedy!!
No
Rated R+ (Mild Nudity) on MyAnimeList and not tagged as Hentai.

OVA · 2015 · 3 episodes · R+ - Mild Nudity
Comedy, Ecchi, Romance, School, Seinen, Sports, Team Sports
First-year high school student Youhei Hamaji has recently joined his school's water polo club. One day, he injures himself while playing a game, leaving him to recover in the infirmary. During his rest, however, he is visited by the female members, each wanting to take care of him. Distracted by his own perverted thoughts, Hamaji constantly finds himself caught up in different awkward situations with the girls. [Written by MAL Rewrite]
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