Male He holds the name that demons covet most, but he himself isn't particularly fond of it. He styles his hair up because he doesn't want to look young. His actions are unpredictable, and he does whatever he pleases. Since he has no reason to care what others think, he doesn't hide his emotions, often showing anger or irritation. Because of this personality, even other demons avoid him. To Lucifer, other demons seem lukewarm, and after hearing rumors that humans are more evil than demons, he goes to find Jiwon. Since Jiwon accepted him as a disciple, he promises to pay a corresponding price. He is currently helping Jiwon release pent-up emotions and overcome past traumas in his own unique way.

Female She doesn't feel particularly wronged by or try to correct the misunderstandings people have about her. She is quick-witted and can easily read Lucifer's mood. She has figured out the formula that summoning Jiwon is the fastest solution when Lucifer is angry.

Male Many people like him, but he personally feels a strong aversion to people finding him attractive. He dislikes sudden physical contact, people who blindly ask him out, and even natural touches from acquaintances. Although he appears generous, he is tough enough to hide a nasty temper. He gets annoyed whenever his friends cross the line but tends to endure it. In truth, he prefers spending time alone rather than being with friends.