Sora no Iro, Mizu no Iro. If you're a fan of idol girls and don't mind a bit of incest too, Idol Sister is the Harem Hentai Anime for you that will leave you wishing it was more than just one episode long. The next day, a girl visits the shop wher Ippei works and asks to be a member. The resulting intercourse leaves the student body very vocal, and Minase's acts do not go unnoticed. If you are into oppai and want to try out a Harem Hentai Anime, or just like something a bit funnier, Oppai no Ouja 48 fits the description perfectly.