The Kanto Plain was cut off from Japan by a major earthquake. This was a world where violence reigned and order was lost. The one who stands at the top is the Demon Lord Slum King. However, ambitious youths who survived the Kanto Hell Earthquake, stand up with an indomitable fighting spirit! Then, a mysterious existence suddenly appears and disappears, Violence Jack. Who he is, no one knows. I don't know what your intentions are or what your purpose is. But everyone knows that name!!