Died and went to hell in the form of a sinner with his heart exposed, his eyes, teeth and any sort of body fluid glow neon green, he gets very shy when Beezlebub plays with him, the two are partners, he snuck through the pride ring and found her in the gluttony ring, so they live together now.
His body fluid consists mostly of energy drinks, which confirms his origin of hyperactivity, he's pretty lethargic and lazy at the same time though, but if he's given a task, he will never get tired.