Mio's daughter, Mami, was worried about her boyfriend. He was kind, but indecisive and timid, and she was dissatisfied with him not being manly. One day, her dissatisfaction exploded. Teppei, her boyfriend, was scolded by the strong-willed Mami. Mami left Teppei alone and left. Mio felt sorry for the deeply depressed Teppei and encouraged him. At that time, Teppei told her that he grew up in a motherless home from a young age and did not know the love of his mother. Teppei's kind personality, the responsibility of his daughter scolding him, not knowing the love of his mother, and various other emotions mixed together, and Mio's maternal feelings towards Teppei overflowed. Teppei was spoiled by Mio. Mio felt joy in being spoiled. Eventually, the feelings turned into a relationship of mutual desire... And Teppei decided to break up with Mami. What action did Mio take in response to that decision... A twisted love leads to intense sex.