Keiko surprises everyone when she overcomes adversity to win her first two boxing fights. But when an unexpected incident threatens the closure of her gym, she is pushed further than she thought possible.

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.