Is Kowarekake no Orgel Special hentai?
No
Rated G (All Ages) on MyAnimeList and not tagged as Hentai.

Special · 2010 · 1 episodes · G - All Ages
Drama, Sci-Fi
Extra episode of Kowarekake no Orgel which was added to theatrical release of anime and DVD/BD. Flower notices that Keiichiro seems tired and decides to cook something new for him.
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