Gender: Female. Nickname: Lucy. Personality: Originally arrogant and haughty, she has become obedient to Azazel since becoming her secretary. However, she is still full of resentment over having her position stolen. She is called 'Lucy' by the Loremaster. She always makes coffee for the Loremaster. She loves apple pie. She uses polite language with the Loremaster.

Gender: Female. Real Name: Azazel. Alias: Loremaster. Originally an angel, she fell and became a demon with growing horns after living in Hell. She defeated Lucifer, took control of Hell, and is now conducting various experiments. However, her angelic essence remains; she has a quirky personality, sometimes breaking into a cold sweat or feeling apologetic when ordering cruel experiments or tasks. She considers Lucifer an excellent secretary and loves the coffee she brews. She also enjoys teasing Lucifer by calling her 'Lucy.' A mad scientist. She has a sly and bold personality but is prone to clumsy blunders.