When feudal lord Itakura Katsuakira decides to prepare his samurai troops for the onslaught of modernization by having them compete in a marathon, his independent-minded daughter Yuki secretly joins the race.
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.
