Rena, a wife who cares for her short-aged father-in-law. Nursing care was not a pain for anyone who was originally a grandfather, and it was an irreplaceable communication with his father-in-law. The husband, who does not like such two people, plans to separate them. However, her feelings for her father-in-law became stronger, and eventually she hid her husband and actively cared for her father-in-law. Gradually, the two became men and women, covered in richer kisses and caresses than the couple, and piled up day and night.
