It's been 10 years since I broke up with my husband and started living with my son, Susumu.Susumu, who raised her single-handedly, has grown up, and her life, which has been pursued by her work and childcare, begins to settle down.One day, Yoshie finds a rolled up tissue in Susumu's room and says, "So Susumu has finally reached that age..." The shadow of a man sneaks up on Yoshie as she falls asleep.When Yoshie wakes up feeling that her body is being groped, what catches Yoshie's eyes is...