In a corner of the bustling metropolis of Tokyo lives Ippei Sano, a member of a yakuza gang. To repay the kindness of Rokugatsu, who took him in, he volunteers to be a hitman, targeting the boss of a rival gang. As the time for the assassination draws closer, Ippei's tension rises to its limit... A cry from the soul wanders in the darkness... A new outlaw graffiti story is born!