is a Japanese manga, co-written and co-illustrated by Go Nagai since 1973 until its conclusion in 1990. 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 38 tankōbon volumes, while a few of them have been published as special tankōbon or have yet to be published in that format. Violence Jack is credited with creating the post-apocalyptic manga and anime genre. A set of sagas from the manga were adapted in three independent OVAs released in 1986, 1988 and 1990. These OVAs have been released in the United States, Italy, France, the United Kingdom, Australia, and New Zealand. In some of these countries, the contents of the OVAs have caused censorship issues, while in Australia the second OVA was banned altogether. The original manga reuses many concepts and characters from other works by Go Nagai. Characters Violence Jack This titular antihero is a complete mystery to those who have encountered him. He is often described being 7 to 10 feet tall with the muscles of a gorilla, the fangs of a wolf, and having burning primordial eyes. The man called Violence Jack had his name given to him for his unpredictable, violent nature and for his signature weapon, a large foldout jack-knife that he conceals and sometimes brandishes whenever necessary. Having appeared out of nowhere after the Great Kanto Hell Quake, Jack wanders throughout Kanto, often picking street fights with those he sees as a threat to Kanto. He often helps those who are weaker than him who are preyed upon by violent nomads and criminals who scour Kanto. Although Jack is described as human, he is often the focal point of strange phenomena that occurs in Kanto. Often when he is finished helping the weak, he will suddenly vanish without a trace of him ever actually being there. Many of the towns he visits are often subjected to mysterious earthquakes that occur during or after his arrival. His presence alone sometimes incites those he is around to become violent and seek to attack him. He is also shown to utilize hallucinations to those he encounters, having once shown a young woman who was planning to sell a girl into slavery where she and her boyfriend are ruthlessly slaughtered. He is also frequently accompanied by a Golden Bird that is only seen