Yuuna used to live a free and easy life, but now she is married to a wealthy husband. Although she has to care for her father-in-law, she lives a comfortable life. However, her husband is busy and they are not having sex at night... Yuuna's desires are growing, and she is caught masturbating by her father-in-law! This turns on the switch of her father-in-law's hidden sexual desire, and he gets an erection even while caring for him... The two of them have a common interest and develop a deep affair that no one else can get into... #ChiefP