My kind uncle's house, which never complains, was a comfortable life in heaven for Tatsuo, a repeater. That's because Tatsuo was living a life of AV without studying. However, my uncle has rarely been at home these days, and when I hear my aunt Mao, I keep nagging every time I see Tatsuo's face. Even Tatsuo, who was truly impressive, was beginning to feel uncomfortable. One day, Tatsuo encounters Mao, who is about to get rid of her AV collection...