The father-in-law living with his son and daughter-in-law... The kind, beautiful, and hardworking 'daughter-in-law,' Rinono-san, has been taking care of him by driving him to the hospital and doing various other things. Since he found out that she secretly masturbates during her spare time between chores, the father-in-law has been both pained and aroused. His son, who is so devoted to his wife, seems unable to satisfy her in their nightly life. Feeling pity for his daughter-in-law, the father-in-law could no longer hold back and engaged in forbidden acts!
