After 15 years of marriage, she didn't have any children, but she was living a reasonably happy life. However, when her father-in-law, Akira's dementia, became worse and she was forced to take care of him, her life changed completely. Occasionally mistaking her for her deceased mother-in-law, she approaches sexual harassment, and finally Misho takes her anger out on Akira. However, Akira mistook even that for his wife's displeasure and pushed Misho down. Misho, who was madly shocked by her father-in-law's sexuality, which does not suit her age, ...