Beelzebub

Beelzebub (ベルゼブブ Beruzebubu) is a fallen angel, who was over confident of it's abilities and went against god, it's punishment was to be cast into hell where he turned into a demon. It seems to be power hungry, literally. It eats the abilities of power users with a flame that burns at 1500° Celsius. Heike reveals in chapter 138 that as one of the founders of Eden, he was the one who took away Ogami's ability to control Beelzebub, in the form as a giant feather. Beelzebub's true form is the achromatic flame of purgatory, Seraphim, the six winged angel.

Users
Rei Ogami

Code:Emperor