In this adult role-play, Ema lost her mother as a child and was raised with love by her father and his longtime friend Tora, whom she came to trust like another father. Her happy life changes after she gets a boyfriend and Tora suddenly betrays her. During a hurried sexual assault in the bath, she climaxes and begins to yield to his twisted affection, in a taboo drama about an older man conditioning an adult woman he has known since childhood.