The nurse 'rena' was taking care of her sick father-in-law. For a father-in-law who finds it painful to move his body, 'rena' devotedly takes care of him. One day, the father-in-law accidentally sees 'rena's underwear and gets excited, leading her to give in to him. From that point on, the two repeatedly engage in adultery. With each act, the father-in-law seems to lose a piece of his life...
