Satsuki lost her boyfriend, Hitoshi, in a car accident. Unable to face up to his death, she spends her days unable to sleep properly. At some point, Satsuki began to jog at dawn as part of her daily routine, and on a bridge she always passes, she meets a mysterious woman named Urara.
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.
Four beautiful sisters are entrusted with taking care of Kinjiro, a giant salamander and national treasure. Rumors spread that Kinjiro is an impostor, so a genius x-ray technician is sent to run some tests.
