Years back, a Great Civil Battle ruined Japan, leaving the nation fragmented between two regions: Kansai as well as Kanto. In Kansai, a team of 6 Akudama execute objectives offered to them by a strange black cat, while averting the cops. However a hazardous trip is about to unravel when a private girl ends up being turned right into the Akudama's way of life and witnesses their criminal drives.