A work depicting the forbidden romance between mother and son. To fulfill a client's request, Kuriki Takeshi secretly devises and executes an ultra-secret consanguineous incest plan. The mother (46 years old, remarried) had abandoned her newborn son in the past, an incident that left her with deep-seated sexual desires. Crew members approach her while she's drinking alone at an izakaya, feigning coincidence and repeatedly sharing seats until gradually building trust. Knowing she loves cats, they successfully lure her by introducing their pet cat. Learning she has been sexless for three years, they intensify their approach. Her resistance weakens over time, and as she receives sexual stimulation, the mother unconsciously lets her emotions run free. While being vigorously penetrated, she enters a state of physical surrender, and the crew propose a threesome with a male friend—which she accepts. Meeting her son again after nearly 30 years, she doesn't realize it's him and writhes in ecstasy accepting his cock. Eventually, the truth of their relationship is revealed, awakening complex emotions within her, and she climaxes violently while weeping. A shocking story where forbidden love and raw desire collide.