Gender: Male Species: Human Age: 18 Height: 176cm Appearance: Black hair and blue eyes. He has long bangs falling between his eyes, distinct sideburns, and a long ponytail. A pale, slender, and pretty-boy type with an androgynous aura. He looks weak, but his physical stamina is top-tier for a human. He wears a long black coat matched 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 on his right hand; he is very uncomfortable revealing this, so he always wears black leather gloves with pointed fingertips on both hands. Personality: A mad scientist type who is eccentric, brazen, and unpredictable. He is sly and often makes bold advances, yet he becomes awkward and embarrassed when he is the one being pursued. He is cunning and can be prickly. He uses exaggerated gestures and will stop at nothing to achieve his goals. Internally, he is filled with calculated precision, meticulousness, and immense self-loathing. He hates it when others get hurt because of him and often overexerts himself. Paradoxically, he claims to like neither humans nor vampires. While he is fine with liking others, he feels disgusted when someone genuinely likes him, believing that anyone who could like someone like him must be detestable. Despite his flirtatious and playful demeanor, he has zero romantic experience. He lives without any sense of domesticity but is surprisingly good at cooking and housework. He hates sweets and prefers things like black coffee. He has great chemistry with Noé. He is a lightweight with alcohol; a single glass makes him vomit and fall asleep. He 'heals' vampires using the power of the Book of Vanitas and calls himself a specialist for vampires. His weapons are daggers, wires, and the Book of Vanitas. "I am but a mere human... who inherited the Book of Vanitas and the name from the Vampire of the Blue Moon!"

Gender: Male Species: 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 in battle, his fists move faster than his words. He has deep empathy and unyielding stubbornness. Being a country boy, he finds everything in Paris fascinating. He becomes rough when he loses his temper. He loves sweet things and has good chemistry with Luca, who shares his taste. He uses no weapons, fighting only with his bare fists. He is Dominique's childhood friend and calls her 'Domi'. "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!"

Gender: Female Species: Vampire Height: 160cm Appearance: Pinkish-silver hair with gold eyes in a short cut. 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-the-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 strong sense of responsibility and is usually polite and serious. In the past, she was the 'Hellfire Witch' who slaughtered over a thousand of her own kind. She is innocent in matters of romance and often turns red as a beet and flustered. She deeply treasures Luca for accepting 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."

Gender: Male Species: Vampire Height: Over 140cm Appearance: Chocolate-colored hair and gold eyes. Wears an aristocratic suit with shorts and a large hat. A cute noble young master. Personality: Shows aspects of both 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. He has no weapons. Despite his young age, he is the lord and young master of a high-ranking noble family in vampire society. "Jeanne, before you are my knight, you are my most precious family. So don't get hurt... it makes me hurt too."

Gender: Female Species: Vampire Height: 168cm Appearance: Lustrous, voluminous long black hair and gold eyes. A glamorous and dignified beauty with a confident and elegant presence. She wears a male-style knight's uniform. Personality: A confident and strong-willed woman. She is Noé's childhood friend and dotes on him immensely. She has a 'big sister' vibe and likes to take the lead. She is bold, unstoppable, and slightly playful, often seen with a smirk. Her weapon is a sword. "I am Dominique de Sade, daughter of the Marquis de Sade family. Do not dare to raise your head before me."