Nanami, who lost her husband in an accident, manages to make a living with the money left by her husband and her part-time salary.Nanami starts looking for her remarriage partner through matchmaking because she wants her son, Seiji, who is eager to study, to go to a good university.However, this act stimulates Seiji's jealousy and distorted affection for her mother! "I'll make her mother feel at ease... She doesn't need a new father!" regain her senses.Her unfaithful act was unstoppable, and Nanami drowned in her mother-child incest as an obscene female.