Aoi studies photography at a school in Tokyo. She undergoes a heart transplant operation and goes to the island of Okinawa to recover. Her uncle lives on the island. There, she holds a camera and walks along the island. Aoi hears the sound of a trumpet. She looks up and sees a young man playing the trumpet. His name is Zio.
Ayako (Akazawa), a housewife who spends her days nursing her father-in-law and taking care of her husband, bumps into her former lover Keisuke (Ueda Koichi), who is now married and has became a cleaner. When Ayako was a junior high school student fourteen years ago, she was involved in a forbidden love affair with Keisuke who had been a teacher at the time.