Violence Jack: Jigoku Gai-hen  

Violence Jack Jigoku Gai, Violence Jack: Jigoku Gai Arc, バイオレンス ジャック 〜地獄街編〜, Violence Jack: Jigoku Gai Hen, バイオレンスジャック 地獄街

The world has been devastated by natural disasters that have caused civilization to collapse into a brutal survival state. Cities are now buried under the earth and it's a dangerous place where only the strongest and most ruthless survive. The strongest among them is Violence Jack, who seeks to prevent a civil war from breaking out in Evil Town, a subterranean metropolis ruled by Go Nagai, a manga horror specialist.