Type: OVA Episodes: 2 Status: Finished Airing Aired: Jul 6, 2012 to Sep 28, 2012 Producers: Mary Jane Genres: Hentai Duration: 15 min. per episode Rating: Rx - Hentai Once again, the peaceful morning is shattered by a diatribe delivered by a sister to her brother. This is a daily occurrence at the Utsumi household, and the fact that his relationship with his step-sister, Miyu, isn't improving is a cause of anguish for Mitsuru. While she may behave like an angel in the presence of their parents, when they are alone, she's a pure devil. [](http://imgclick.net/2r3uxl6b6rvi/my_imouto_koakuma_na_a_cup_-_02.jpg.html) [](http://damimage.com/img-54192d8296213.html)