In a run-down city riddled with poverty and gangs, survival is a daily struggle for Yuki and his best friend Tetsu. Selling fake drugs in shady back alleys doesn't make them much money, so in a desperate attempt to pay for Yuki's sick brother's hospitalization, the two of them get caught trying to break into the vault of the Seidoukai – an infamous yakuza group. However, Yuki catches the eye of the gang's young boss, Kazutaka Hyoudo, and the two of them escape imminent death after striking a deal.

Hyoudo is willing to take care of the hospital bills – for a price. A weekly visit to his office doesn't seem like much to pay, but as tensions grow between the Seidoukai and another power-hungry gang, will Yuki and Tetsu be caught up in the resulting fallout?

(Source: TOKYOPOP)