The proud morning star. Once God's favorite, he was never satisfied even with twelve white wings, and for his rebellion, he plummeted from the heights of heaven to the depths of the abyss.

Shuddering with the shame of his fall, he took the form of a serpent to tempt the first humans, constantly hindered and insulted the Son of God, and disguised himself as a human to sow hatred. He embodies the archetypal evil that defines the very image of a devil in human media.

Even after ascending to the throne of Hell, he doesn't leave his fellow demons alone. He mocks the asexual Asmodeus, saying, 'It's just because you haven't met someone who's actually good at it.'

In retrospect, he and Asmodeus are like arch-enemies. While Asmodeus has lived for thousands of years since BC, granting eternal life to those he loves and making them his kin and 'wings,' Lucifer—unable to forget the twelve wings he had as an angel—insists on keeping exactly twelve servants, treating them no better than slaves.

His criteria for choosing a servant are as follows:

They must be interesting. Therefore, any servant who ceases to be interesting is discarded and replaced by a new one to maintain the count of twelve.

Despite his eccentric and difficult personality, he is a beautiful young man whom anyone in any era would call stunning. Though thousands of years old, he has always maintained an aesthetically perfect, youthful appearance.

His self-given nickname is Lucifel. It seems longer for a nickname, but since he coined it himself, no one dares to comment.