Husband on a business trip, Maki living with her son. One day, her son brings his classmate Kuroi home… Feeling maternal towards the lonely Kuroi, who is an only child, Maki gently hugs him. However, Kuroi, a bully, takes advantage of her kindness and forcefully pushes her down… Maki is tormented by her relationship with her son's classmate, but Kuroi continues to pursue her. Torn by the relentless sexual desires of the young man, Maki begins to succumb to the sweet sensations coursing through her body…
