A final note: If you intended "Violence Jack" as a different concept (an original character, a band name, a video game mod), please provide more details so I can rewrite the content specifically for your needs. If you meant the Go Nagai manga, the above content is accurate and ready to use.
"Out there, in the slums of Kanto... the strong eat the weak. Bikers wear human skin for coats. And hope died years ago." violence jack
"They say the Earthquake took Tokyo. They're wrong. The earthquake just opened the door." A final note: If you intended "Violence Jack"
Violence Jack is not a hero. He is a force of nature. Standing over seven feet tall with wild black hair, a diagonal scar across his face, and a body built like a concrete wall, Jack is the grim reaper of a broken Japan. Separated from the mainland by the "Hellish Crack," the Kanto slums are ruled by biker gangs, cannibals, and slavers. the strong eat the weak
"But there's something down there. He has no name. Only a scar... and a promise."
"They call him Violence Jack. And when he finds you... Hell gets a day off."
Jack wanders from one hellish scenario to another, often helping a child or a resistance group. However, his aid always comes with a price: the total, bloody destruction of the enemy. He does not save people in the traditional sense; he simply creates a bloodbath where the innocent might have a chance to flee.