Naoko Akase - kär i sin styvgranddotter

A father-in-law falls in love with his son's daughter-in-law, Naoko, whom he should never be interested in... The father-in-law observes and fantasizes about Naoko's life. One day, the father-in-law, who was looking at her masturbation, was approached by Naoko... "Father-in-law, I knew you were looking at me all along." However, instead of getting angry, Naoko invited her father-in-law...