God-Slaying Demon King 03, The

The strongest demon king in history returns from the dead and embarks on a grand adventure to find the god of all demons…and kill him!
Hiram, the strongest demon king in history and ruler over all of demonkind, refused to obey the demon god’s demand for sacrifices. A fierce battle ensued, which ended with Hiram losing his life. Five centuries later, Hiram successfully reincarnates himself as a young human with his magical powers intact.
After an assassination attempt while visiting the Kingdom of Orteville, Hiram uncovers a ploy by the chancellor, who has designs on enhancing his power. But a shocking metamorphosis reveals the chancellor to be nothing more than a pawn being controlled by an old nemesis.
Story Locale:Fantasy world Series Overview: When the world’s most powerful demon king loses his life in a fight with the demon god, the demon king reincarnates himself as a human to escape the demon god’s influence. When he is reborn 500 years after his death, he goes about learning how the world has changed and begins an adventure to find and kill the demon god. But when other demon lords learn of the former king’s reincarnation, they hatch their own plans to keep him from regaining his crown.