VENU-800 Kyoko Kubo plays with her dirty father-in-law's wife who has retired and has free time.

Kyoko, a wife who has been living an ordinary but happy life with her husband for five years. However, Kyoko also had one problem. That is living with her stepfather. It was frustrating that I couldn't get closer to my stepfather, who doesn't talk much, and it was also creepy that I couldn't understand what he was thinking. However, one day when her husband was late coming home, he heard something from the bathroom.