A frustrated mother who drowns in sexual intercourse with her unequaled son for three days when her husband leaves home on a business trip and squirts for 72 hours from morning till night. Kato Tsubaki

Kato Tsubaki, a frustrated mother, engages in an incestuous relationship with her son's friend, Ono, while her husband is away on a business trip. Ono takes advantage of the situation and has sex with Kato, who is torn between her desire and guilt. The central kink of this movie is the taboo and forbidden nature of their relationship, with Kato being a mother figure and Ono being her son's friend.