Naoko, living with her father-in-law at her husband's family home, gradually came to trust him deeply, as he was always by her side, caring and considerate, unlike her workaholic husband. However, beneath her father-in-law's kindness lurked a hideous wolf's face, intently eyeing Naoko's body. He, under the guise of massage, touched every part of her body. Naoko was bewildered by her father-in-law's sudden change, but under his persistent and precise caresses, she gradually lost her strength...