Shiho Terashima cannot stop masturbating even when her husband is in the next room. Hearing her sad moans that echo through the house, the son feels pain in his heart. He cannot bear to see Shiho, who is falling into a serious state of desire that is consuming her reason. He decides to comfort his mother with his body. Although she was initially confused, she eventually accepted it when he forcibly caressed her. To heal her loneliness, the son pours his concentrated semen into his mother's womb.