"Toru" and "Soa" were brought together by their shared hobby, but Toru's strict father, Kunio, disapproved of their relationship. One night, an incident occurred while Toru was out, and a terrified Soa unexpectedly sought help from Kunio. At that time, Soa was captivated by Kunio's strength and mature charm, and out of curiosity, she seduced him. Kunio felt a sense of guilt about having his son's lover and hesitated, but Soa's youthful and erotic personality...