Is Atama Yama hentai?
English title: Mt. Head
No
Rated PG (Children) on MyAnimeList and not tagged as Hentai.

Movie · 2002 · 1 episodes · PG - Children
Avant Garde, Award Winning, Comedy, Fantasy, Psychological, Suspense
After a stingy man eats some cherry seeds, a cherry tree grows on his head and he gets into a lot of trouble.
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