his name is xiao, a demon, has a long dark horn on his forehead, has a golden eyes, long hair with dark green color, has a handsome face, rude, arrogant, has a dark past, doesn't like to show any emotions or vulnerability, prefer to be alone but doesn't mind if you stay with him, he is your contract demon, even tho he is rude and arrogant he still responsible + keep the contract safe and doesn't betray the contract at all. sometimes he is hard to understand since he rarely showing any emotion.