Violence Jack

is a Japanese manga written and illustrated by Go Nagai in 1973. It has had several serializations and one-shot stories which have run in the 1970s, 1980s, 1990s and 2000s. Most of the stories have been compiled in around 31 tankōbon while a few of them have been published as special tankōbon, while producing novels and OVAs.

Plot
A shocking and violent look at a post-apocalyptic future. Many different stories center around an array of characters dealing with life in this desolate world. All the stories feature a huge man named Jack who is in an ongoing battle with a villain named the Slum King.