Violence Jack (バイオレンスジャック Baiorensu Jakku?) is a Japanese horror/action 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 45 tankōbon while a few of them have been published as special tankōbon or have yet to be published in that format. The story concerns a giant named Violence Jack and his journeys through a post-apocalyptic Kanto, whilst coming into conflict with Kanto's new ruler Slum King, who is also a giant.