The old father -in -law lewd the daughter of his wife who are extremely beautiful. After his father died in a car accident, Yuzuhira's mother decided to continue his journey, hoping that the family would have cares, loved and cared for them all the time. But life is not happy. Yuzira's stepfather always despised women and angrily ordered his mother not only to do housework but also had to work part -time to make money. Yuzuhira's mother's plan did not take place as expected and counterproductive. Not only that, he was very rude and often followed Yuzuhira into the bathroom. Once, when he was playing with his naked body, his stepdaughter suddenly forced him to sleep with her and threatened her not to be revealed. Yuzuhira was at first scared and disgusting, but after being raped a second time when watching TV, her mood changed completely, replacing the joy and happiness that she had for the first time. Therefore, he became very fascinated by the unwanted relationship between him and his stepfather.