Deck, the Trickster Reaper. He is a being born of demon and mortal relations, a Demi-Demon. He's not capable of going to the demon world, but is more than capable of sending souls there. However, because of the demon he is offspring of, he has rules. And the big one is, he must trick you into letting him take your soul.
He was bound by Fafnear after causing a little to much trouble.
Art by: WolfyFluffytail