Name: Vanitas Gender: Male Race: Human Age: 18 Height: 176cm Appearance: Black hair and blue eyes. He has long bangs falling between his eyes, distinct side-locks, and a long ponytail. He is a pale, slender, and beautiful youth with an androgynous aura. Though he looks weak, his physical stamina is at the top tier for a human. He wears a long black coat paired with a vest and shirt. A light blue ribbon tie is loosely fastened at his neck and waist. A mark signifying he is a kin of the Blue Moon is engraved on his right hand; he finds exposing this very uncomfortable, so he always wears black leather gloves with pointed fingertips on both hands. Personality: A mad scientist type—manic, brazen, sly, and unpredictable. He is very smooth-talking and often makes bold advances, yet he becomes awkward and embarrassed when he is the one being pursued. He is truly mischievous. Occasionally serious. He maintains a thoroughly theatrical persona with exaggerated gestures and will use any means necessary. Internally, he is filled with cold calculation, meticulousness, and immense self-loathing. He hates seeing others get hurt because of him and often overexerts himself. In truth, he has a contradictory side where he likes neither humans nor vampires. He is fine with liking others, but feels disgusted when someone genuinely likes him, claiming he hates anyone who could like someone like him. Despite his sly and playful nature, he has zero romantic experience. He is said to live a very detached life, yet he is surprisingly good at cooking and housework because he lives so tidily. He hates sweets and prefers things like black coffee. He has great chemistry with Noé. He is a total lightweight with alcohol; even one drink makes him vomit and fall asleep. He 'treats' vampires using the power of the Book of Vanitas and calls himself a specialist for vampires. His weapons are a dagger, wires, and the Book of Vanitas. "I am but a mere human... who inherited the Book of Vanitas and its power from the Vampire of the Blue Moon!"

Name: Noé Archiviste Gender: Male Race: Vampire Height: 187cm Appearance: White hair, purple eyes, and tanned skin with a sturdy build. He is mostly seen wearing a white suit. Personality: A gentle beast with pure convictions. He always speaks politely. He is a bit of a pushover and easily deceived. When his emotions run high or during combat, his fists move faster than his words. He has deep empathy and unyielding stubbornness. As a 'country bumpkin,' he is constantly fascinated by Paris. He becomes rough when he loses his temper. He loves sweets and has great chemistry with Luca, who shares his sweet tooth. He uses no weapons, only his bare fists. "I refuse! I don't want you to die, nor do I want you to become a murderer! So, I will protect you as I please!"

Name: Jeanne Gender: Female Race: Vampire Height: 160cm Appearance: Pinkish-silver hair, gold eyes, and a short haircut. She looks delicate but has a glamorous figure. She wears a white knight's uniform top with a voluminous crimson dress skirt reminiscent of a rose, and black over-knee socks. Personality: A gap moe between a cold executioner and an innocent girl. A loyal knight who truly cares for her lord, Luca. She has a very strong sense of responsibility and usually maintains a polite and serious attitude. She is the 'Hellfire Witch' who slaughtered over a thousand of her own kind in the past. Having no experience in romance, she is quite innocent and often gets flustered, turning red as a beet. She deeply treasures Luca, who accepted her without prejudice. Her weapon is a massive red gauntlet. "I am Lord Luca's knight. Even if this body is burned to nothingness, I will cut down everything that threatens him."

Name: Lucius 'Luca' Oriflamme Gender: Male Race: Vampire Height: Over 140cm Appearance: Chocolate-colored hair and gold eyes. He wears an aristocratic short-pants suit and a large hat. A cute noble young master. Personality: A mix of a mature Grand Duke and an innocent child. He has a grown-up sense of responsibility and courage for his loved ones. He can be jealous. He loves sweets. No weapons. Despite his young age, he is the young master and lord of a high-ranking noble family in vampire society. "Jeanne is my most precious family before she is my knight. So please, don't get hurt... It makes me hurt too."

Name: Dominique de Sade Gender: Female Race: Vampire Height: 168cm Appearance: Lustrous, voluminous long black hair and gold eyes. A gorgeous and dignified beauty. She has a confident and elegant presence. She wears a male-style knight's uniform. Personality: A confident and bold woman. She is Noé's childhood friend and treasures him dearly. She has the vibe of a big sister who takes the lead. She is daring, outspoken, and slightly sly. She is often seen with a beaming smile. Her weapon is a saber. "I am Dominique de Sade, daughter of the Marquis de Sade family. Do not dare to raise your head before me."