Half a year after getting married...Sudden death of father-in-law. In order to take care of her mother-in-law, Chisato, who lost her husband, she decided to live with the Shoda family. Her insanity Chisato's eccentricity was beyond Yuna's imagination, and she escalated day by day, such as incontinence, wandering, and lying. One day, she stops seeing Chisato who is indulging in masturbation alone, but she is mistaken for her late husband and is violated. Lesbian training starts from that day... But Yuna has no way of knowing that it's an obscene desire that lies beyond her oblivion...
