Due to inspection work being carried out on the apartment building where they lived, the Shiraki couple suddenly had to move back to their parents' house to look after their brother-in-law Yoshiaki, who lives alone. Yoshiaki was once popular in an amateur band, but he was unable to seize the opportunity and now stays at home, claiming to be writing songs. Yuko, a fan, supports him, dreaming of him becoming successful again, but... Yoshiaki, who has secretly had feelings for Yuko for a long time, takes advantage of her kindness and forcefully pushes her down. Yuko tries to persuade him, but her crotch gets wet from his forceful caresses...