A year after getting married, dissatisfaction in many aspects between Kojima and her husband increased day by day, reaching a peak that led him to make a difficult decision to send her to her father-in-law's house for a week. From the first night, her lasciviousness was expressed through masturbation in the bedroom, but her soft moans could not escape the ears of her father-in-law, who, despite being old, was still very vigorous and interested in sex. This was the beginning of a long series of days to come for the beautiful daughter-in-law, immersed in the debauchery of incestuous relationships with none other than her father-in-law.