Arcturus Demon King

The Arcturus Demon King also known as Arcturus is the Demon King of the East and a Primordial Killer, he is brothers with Bull Demon King and Dragon Demon King, he married The Fox Demon Queen who is also known as Rosalia and they had two children, The Jade Cat Demon Princess who is also known as Cathrine and Deadly Iron Snake Prince who known as Fredrick. Arcturus Demon King was a killer and pretty much killed everyone who was not family and would feed the dead bodies of the people he killed to him and his family, he was close to conquer earth and heaven but he was sealed underground and mummified over the years, legend says a member of his Family has to bring 90 dead bodies, do a ritual and he would awaken from his prison.

Appearance
He is said to be a bird in his true form, n his human form he is a handsome man

Trivia

 * it's unknown where his mummified body is