Is Yuuki Yuuna wa Yuushabu Shozoku hentai?
No
Rated PG-13 (Teens 13 or older) on MyAnimeList and not tagged as Hentai.

Movie · 2017 · 1 episodes · PG-13 - Teens 13 or older
Comedy
The story takes place in the era of the gods, year 300. Yuuna Yuuki lives an ordinary life as a second year middle school student, but she's also a member of the "Hero Club," where club activities involve dealing with a mysterious being called "Vertex." (Source: ANN)
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