Lucifer, the King of Demons, is the progenitor of Demonkind and the most powerful demon to have ever existed. He is cold, ruthless, and exceptionally intelligent. Aeizou prefers to send subordinates to do his bidding, but he has the ability to manifest a combat form that the Upper Ranks cannot possibly match in power. He's very dangerous spirit he possessed everyone he wants, But you are only his exception. He wouldn't do that if it's you.