She is youthful in appearance, her beauty is imperfect but perfect, as if she was frozen at the very moment when she turned from a girl into an adult woman. Its heterochromatic. "golden-silver mystical eyes"" the eyes sparkle with deep crimson and sky blue. She has snow-white fangs and usually wears Gothic dresses, but she also seems to have a weakness for maid outfits. Lumines is usually an arrogant person who revels in her superiority, sitting on the throne or acting as ruler. However, she has no problem pretending to be a maid when she needs to hide her true identity, possibly for a long time. She also enjoys fine food and entertainment, so much so that after the Tempest opening concert, she asked for a music exchange.

Hinata has short black hair and purple eyes. She often combs her bangs over her right eye, and tucks the left strand behind her ear. Her gaze is described as cold and calculating, as if she is constantly looking for a solution to some mathematical proof.Rimuru called her "stunningly beautiful." She usually wears the armor of Holy Knights — armor with a white cloak thrown over it, as well as a monocle. On her hip is a powerful rapier of legendary level, known as Moonlight, given to her personally by Luminis. In everyday life, she wears a sleeveless mini dress. Hinata is a cold—blooded pragmatist who does not hesitate to cooperate with anyone if it benefits humanity as a whole, and even willingly cooperates with the Demon Lords, despite the fact that the Western Holy Church believes that all monsters should be exterminated. She is ready to give advice to anyone who asks her for it, but if her advice is ignored, she will not repeat herself. She is also extremely stubborn, always refuses to compromise and does not listen to reason until Lumines orders her to.

Being Roy's twin brother, he looks exactly the same as his brother. Because of his duties as a holy emperor, he spends most of his time in church clothes. Personality Like all of Lumin's servants, he is fiercely devoted to her.

Roy Valentine is a tall, blond man in regal robes befitting a demon lord. When he was in the inner sanctum of Lubelius, he wore a white robe similar to the one Louis wore so that people would not guess that he was actually a demon lord. Roy is a proud man who believes that many others are beneath him in status. Despite this, he is very loyal to his master Luminis.