Misho (Minato), who had been married for 15 years and had no children, had a happy life. However, his life changed completely when his father-in-law, Akira's dementia, became so severe that he was forced to take care of him. Occasionally misunderstanding his deceased mother-in-law, Misho approaches sexual harassment and finally Misho gets angry. However, Akira, who misunderstood even that as his wife's sullenness, pushed Misho down. Misho was shocked by her father-in-law's sexuality that didn't suit her age ...