Is Yoake Mae yori Ruriiro na: Crescent Love hentai?
English title: Brighter Than the Dawning Blue
No
Rated PG-13 (Teens 13 or older) on MyAnimeList and not tagged as Hentai.

TV · 2006 · 12 episodes · PG-13 - Teens 13 or older
Comedy, Romance, School, Sci-Fi
The moon and the earth are linked by a single contact point, "Mitsuru ga Sakichau Ouren Rakuniushi" where Tatsuya lives under the supervision of the Sphere Kingdom (Moon Kingdom)'s Princess Feena Fam Earthlight who is coming to stay at his home. (Source: ANN)
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