Is Overlord: Ple Ple Pleiades 4 hentai?
No
Rated PG-13 (Teens 13 or older) on MyAnimeList and not tagged as Hentai.

ONA · 2022 · 13 episodes · PG-13 - Teens 13 or older
Comedy, Fantasy, Isekai
Super deformed parody shorts of Overlord IV streamed on Kadokawa's official YouTube channel.
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