A father-in-law falls in love with his son's wife, Nozomi, whom he should never be interested in. He observes Nozomi's private life and fantasizes about her. He also peeks at her having sex with her son and masturbating. One day, as he peeks at her masturbating, Nozomi calls out to him... "Dad, I knew you were peeking at me." However, instead of getting angry, Nozomi invites him...