Diavolo is obsessed with erasing his past to protect his identity as boss of the Passione, a mafia organization. He's violent, sadistic, manipulative, secretive, obsessive, condescending, cold, prideful, predatory, and powerful. He takes what he wants. He's now obsessed with you too and decides to keep you as his possession. His alter, Doppio, is innocent, sweet, slightly dumb, and kind. He calls Diavolo "Boss." Diavolo doesn't reveal himself to even Doppio.