VENU-718 Mao Kurata plays with her lewd father-in-law's wife who has retired and has free time.

Mao was living a happy family life surrounded by a kind husband and father-in-law. - All that's left to do now is wait until you're blessed with a child. - It seemed like these happy days would last forever. - But one day, her life changes completely at the hands of her father-in-law. - When Mao, who had never imagined that her father-in-law had dark desires for her, exposed her defenseless side, her father-in-law's attitude suddenly changed. - ``Are you trying to seduce me by showing off your appearance like that, you lewd person!?'' Suddenly, an old man's desire reveals his fangs.