Yushiro, whose mother is the renowned actress Hirano Kyoko, recognized for both her popularity and talent. After losing his father at a young age, Yushiro lived with his beautiful mother Kyoko. For Yushiro, his mother was the ideal woman. This fixation grew so strong that he began to masturbate while watching Kyoko on TV. However, this behavior was witnessed by Kyoko's older sister and aunt, Mayumi… To satisfy Yushiro's twisted desires, Mayumi began disguising herself as Kyoko and became Yushiro's 'Mom,' performing sexual acts for him. But all Yushiro could think about was his mother, Kyoko…
