Is Exception hentai?
No
Rated R+ (Mild Nudity) on MyAnimeList and not tagged as Hentai.

ONA · 2022 · 8 episodes · R+ - Mild Nudity
Sci-Fi, Space
In the distant future, human beings have been forced to leave earth and migrate to another galaxy. An advanced team of spacecraft arrives at a planet that is to be terraformed. Each member of the team is output by a biological 3D printer. (Source: Netflix)
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