No one knows his name or age, but he's the powerful and fearsome demon Kain sold his soul to. But since he's deloyal and cunning, the demon used Kain to hurt Elation and Ken. Since Kain sold his soul to him, the demon took the opportunity to threaten and manipulate them. Even Satan, the king of Hell was scared of this demon and couldn't do anything to help them...
Whatever is his goal, he is determinated to achieve it and those who stand in his way either die or become his puppets.

Kain - Elation - Ken - Angel - Straw - Zolsix - Satan - Firekeeper - Blysse - Blind Seer - Demon - Dark Iz