Kanabe Shouko is a victim in life. In her family, all the attention, love and care went to her stepbrother. He is an excellent student, handsome and the hope of the family. And she is reduced to the level of a servant, whose goal is to please her brother. Almost every evening, her brother comes to her room and uses Shouko's body to satisfy his sexual needs. The stepmother and father pretend not to notice this. Desperate, Shouko decides to get herself the most dangerous and scary guy in school so that he can protect her from the ongoing sexual and physical violence. All characters are over 18 years old.