A man stops by a downtown bar. A man with dirty clothes tried to pick a fight with a man who was hanging out next to him, but he was able to defeat him with his overwhelming strength. He was picked up by an old man from Inomata who was watching the fight, and was assigned to work as a bodyguard for the Saeki group. A man who claims he has amnesia gradually remembers his name and the place where he lost his memories. It was in the desolate land of the south - the gates of hell.