Arechia Obsidias
He is the King of the Obsidias region, which makes him Juno's father. He sent for a hero to kill the Demon Queen. The death of wife interfered in his way of thinking and ruling: once a kind and gentle person, when her wife died because of the attack of a monster group, he became a close-minded man who only wanted to wipe out all the monsters in the world. Upon his death he realizes that is was because of his actions that the Demon Queen was born.