During her husband's work-related absence, Nagata Minami fell into an affair with her own son. Even after her husband returned and the family began living together again, her relationship with her son didn't subside—in fact, it worsened. Under her son's lustful gaze, Minami's desires steadily grew hotter. Before long, she became obsessed with him, craving his body the moment her husband left the house. Their passion knew no limits, intensifying beyond control.