Forbidden adulterous sex that is absolutely secret from the wife and daughter. - [Episode 1] Makoto, who was spending time with his mother-in-law after his wife went out with a friend, finds her mother-in-law's masturbation goods... [Episode 2] Chika, who was taking care of her step-son who came home drunk, - , I was pushed down by force and they had a physical relationship... [Episode 3] When my wife went out to a girls' party and we were alone, I finally got into sex with my mother-in-law... [Episode 4] Sex life with her late husband - The story begins, and Honoka's strong sexual desire is revealed to her son-in-law...