A father-in-law who fell in love with his son's wife, Naoko, who should never be interested. The father-in-law observes Naoko's life and delusions. I also peeked at sex and masturbation with his son. One day, the father-in-law who looked into the masturbation figure was called out to Naoko. "Dad, I knew you were watching me all the time." However, instead of getting angry, Naoko invites her father.
