Gozo, a father-in-law who goes to Tokyo to visit his son and his wife, sees through the couple's sexlessness when he sees his son's busy schedule. As he awaits the birth of his grandchild, he believes it is essential to improve his wife's sexual appeal. One night, Gozo makes up his mind and forcibly enters into a relationship with his wife. I trained my daughter-in-law, who was not good at sex, every day, and led her to a captive of lust, but there was a surprise ending that only his son did not know.
