The father remarries a younger woman, giving his son a young stepmother around his own age. The son is a NEET who does nothing but masturbate in his room all day. Hoping to reform him, the stepmother tries various methods, but ends up consumed by her own desires instead. She grips his cock with her youthful hands, making him experience intense, realistic eroticism through VR. Their lewd relationship escalates, leading to a shocking turn of events.