Nana, who lives a happy life that everyone envies, is a beautiful wife who is well-known in the neighborhood association. One day, Nana accompanied her husband on a business trip to Okinawa and got sunburned, so her father-in-law asked the local doctor to examine her. However, when the doctor saw the tan lines of her obscene swimsuit, he changed his attitude and realized that she had left her sick father-in-law behind to go on vacation. To keep quiet, he forced her to suck his penis. Furthermore, other men from the neighborhood association also played with the tanned wife's body. Then, her father-in-law saw the scene...