A boy with big breasts, an older childhood friend, a neat and clean heroine who falls in love with a heroine. However-I learned that her longing perfect heroine is dating the hero's brother ...!? What they arrive at is a fallen drama in which looting and pleasure wriggle. De M The heroine with a temperament is completely committed to her, and she takes away all of it so that her brother will not get caught ... !! Since the main character is her younger, she will take in the flavor of Oneshota and make her serious and gentle virgin heroine fall into pleasure ...! Such a royal road NTR erotic scene is at home, at school, outdoors, It will be developed in various situations and costume differences. And her talent as a sexual slave blooms without even noticing the heroine who drowned in her trained shame and pleasure every day ...? The angry lewd words released by the completely fallen bitch heroine attack you ...! ――Your sister will be my own thing ... No matter what hand she uses--