Hyscliff is a man who lives in a small town in Hildyard called Misshinai. He is the son of the king of Cavalcade who fell in love with the daughter of a merchant in Hildyard and left the royal family to marry her. He runs an onsen in a Hildyard pleasure district. He has a daughter named Beatrice. He offers to educate Greta in Cavalcade about human royal families and culture so that she can become an ambassador between Mazoku and Humans.