As a virgin and dull college student, she couldn't do it and lived a lazy life talking about AV and graduation thesis with her virgin friends. One day, when I go home with her friend, I meet a couple who is moving. His wife is Mina-san, and the estimated H-cup was sober but full of pheromones. Furthermore, I heard the fierce couple's activities at night, which spurred my anguish. And a few days later, I decided to give Mina-san, who lost her key, to her home ...