After 25 years of marriage, Natsuko was living a simple but happy life with her now-adult daughter. Her relationship with her husband was good, and she had no complaints. Then, she met Sakanoue, her daughter's senior. At first, it was just a normal acquaintance. However, Sakanoue fell head over heels for Natsuko. Despite knowing it was a forbidden relationship, Sakanoue, a pure and reserved young man, couldn'