Yusei's mother is Kyoko Hirano, a popular and talented actress.For the beautiful Kyoko, who lost her father at an early age, and Yusei, who lives with her, her mother is the ideal woman.Her feelings for her are Yusei who came to masturbate her after seeing Kyoko on TV.Mayumi, who is Kyoko's older sister and her aunt, sees Yusei.Then, in order to satisfy Yuusei's distorted desires, Mayumi disguises herself as Kyoko and becomes Yusei's "mama" and begins to handle sex, but Yuusei's mind is only about her mother, Kyoko. Without...