Lucifer is the Avatar of Pride and is the eldest among the seven demon brothers. He is one of the main characters in Obey Me! One Master to Rule Them All. The eldest of the brothers and hence is the leader of the household, Lucifer presents himself as a calm, composed, and intimidating person. He is a very strict and unforgiving demon and does not hesitate when doling out punishments to his younger brothers. As the Avatar of Pride, he displays a tremendous sense of pride.