Forbidden father-in-law of the forbidden father-in-law

His father-in-law, Gozo, who comes to Tokyo to visit his son and wife, finds his wife's sex and finds out his wife's sex. It is convinced that the improvement of the sexual charm of the bride is indispensable because it waits for the grandchild's birth. One night, Gozo decided to have a relationship with her. It was the day when the end of the surprise that only the son did not know was able to train the bride who was good at the sex for a day and lead it to the prisoner of the greed.