Arikawa runs a transport company. But this is only a front for his gambling house. Yuriko is a regular on the scene, and she is fascinated by the dice and the one who throws them. A year before, Yuriko's father died in mysterious circumstances; she decides to go in search of the truth.

Mourning the death of her boyfriend, Yukiko wanders aimlessly from one city to another. During her mourning, she becomes addicted to gambling. One day, a man that resembles her deceased lover asks for help. He's being pursued by a dangerous gang of yakuza.

Yukiko is on her way to meet Boss Gunji. Judging by her appearance, no one would suspect that this beautiful young woman, sitting quietly in a suburban train, is the only woman able to beat the best professional players in Japan; or that she is wearing the tattoo of the man that loved her and died for her...