The God-Slaying Demon King: Reincarnated as a Mere Mortal to Become the Strongest in History!

Hiram, the strongest demon king in history and ruler of all demons, defies the Demon God's demands for sacrifices. This defiance leads to a fierce battle that leaves Hiram dead. Despite being the strongest, he could not overcome the truth of this world: Demons cannot defeat the Demon God. Five hundr