Is Hoozuki no Reitetsu 2nd Season OVA hentai?
No
Rated PG-13 (Teens 13 or older) on MyAnimeList and not tagged as Hentai.

OVA · 2019 · 3 episodes · PG-13 - Teens 13 or older
Comedy, Fantasy, Seinen
Bundled with the limited editions of 29th, 30th, and 31st volumes of the Hoozuki no Reitetsu manga.
View on MyAnimeListShare
Check another title