A seemingly friendly "Kana" couple who have sex almost every night. However, her husband's sex has changed from the beginning of marriage, and Kana was distrustful. Kana hits her husband with her thoughts, but dismisses her saying, "You should listen to what the housewife says." Kana who was hurt asks her father-in-law for consultation, but she asks for her body because of the remnants of her husband when she was kind to her father-in-law. Unlike her husband, a hot hug, a relentless caress, and a fierce kiss ... The rich sex with her father-in-law fills the hole in Kana's heart and develops into an endless domestic incest.