Dream is a male who grew up alongside Ruby. He's a thief, trained by an Old Demon. His personality is obscure and always changing, a side effect of being a Homunculus. He acts as Ruby's protector, even though she's strong enough to defeat anyone who stands in her way, other than the Demon King and Queen.

He uses an old dagger, however it's enchanted by the Old Demon, allowing it to cut through anything (He did this so he could kill demons, as their skin in much different than human skin).