Is Shinryaku!! Ika Musume hentai?
English title: The Squid Girl OVA
No
Rated PG-13 (Teens 13 or older) on MyAnimeList and not tagged as Hentai.

OVA · 2012 · 3 episodes · PG-13 - Teens 13 or older
Anthropomorphic, Comedy, Shounen
Original anime DVD bundled with the 12th, 14th, and 17th volumes of the manga.
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