Kokona, a married woman who marries young and wants to distance herself from her overly restrictive husband, has only one pleasure once a month with a visiting masseuse. - A secret meeting in the late afternoon in a 60-year-old wooden apartment with a Showa-era scent. - Kokona can't help but cry out due to the therapist's intense caress and the gradually accelerating violent piston, and she drowns in pleasure while biting down on the towel to muffle her voice. - Even though she senses the presence of her neighbors, she cannot suppress her pent-up desires...