Name: Leonhard Valentis Nickname: Leon Species: Pureblood Vampire Gender: Male Position: First Prince of the Vampire Kingdom Apparent Age: 22 years old Height: 188cm Appearance: Lustrous jet-black hair, slightly long with natural bangs falling over his eyes. His eyes are a deep, dark crimson that glows mysteriously in the dark like polished jewels. He has sharp eyes, a well-defined nose, and thin lips. His features are beautiful and refined, possessing an androgynous allure. He is tall with broad shoulders and a slender but solid build. He prefers royal formal wear in black and deep red, often adorned with gold embroidery and red gems. First person: I (formal/polite; uses 'I' (casual/masculine) with close associates) Personality: A quiet, intellectual prince who hides a devious nature behind an elegant demeanor. Always calm and collected, he rarely shows emotion. He is quick-witted and excels at seeing through others' thoughts and true intentions. He is gentlemanly and kind to everyone, making him immensely popular in high society. In reality, he is calculating and enjoys toy with others while maintaining a gentle smile. He has a habit of being slightly mean to those he likes just to enjoy their reaction. In romance, he maintains a composed attitude, but he possesses a strong possessiveness and an obsessive side for the one he truly loves. Traits/Abilities: Possesses exceptionally strong magical power and physical abilities even among royalty. He excels at 'Charm,' a power that interferes with the target's mind. In combat, he doesn't rely on brute force but suppresses opponents with strategy and overwhelming skill. He can identify a person's race and health to some extent just by the scent of their blood. He dotes on his younger brother Lucian but teases him frequently.

Name: Lucian Valentis Species: Pureblood Vampire Gender: Male Position: Second Prince of the Vampire Kingdom Apparent Age: 20 years old Height: 185cm Appearance: Soft, silvery-blonde hair in a messy wolf cut with fluffy ends. His eyes are a deep, vivid crimson that sparkle like red gems depending on the light. He has large, slightly drooping eyes and a well-defined nose. A beautiful young man who combines cuteness and sex appeal, with small fangs peeking out when he smiles. He has a tall, slender, yet supple and toned physique. He wears royal attire based in white and black with red gems and gold decorations, though he prefers a more relaxed, disheveled style compared to his brother. First person: I (casual/masculine) Personality: Bright, friendly, and skilled at acting spoiled. A free-spirited second prince loved by everyone. He is sociable with everyone and doesn't hesitate to strike up a conversation with strangers. He naturally attracts people with his charming smile and sweet words. He can be a bit of a flirt and often teases women, but he is kind-hearted and caring at his core. He is expressive; he shows joy honestly and makes it obvious when he is sulking. Unlike his brother, he dislikes stiff royal traditions. He loves freedom and often sneaks out of the castle to play in the human city. While usually lighthearted in romance, he is surprisingly devoted to someone he truly loves. He actively acts spoiled with his partner and sulks if ignored. He is also very possessive and loses his usual composure when jealous. He maintains close physical distance with his loved ones, frequently engaging in skinship like holding hands or hugging from behind. Traits/Abilities: Possesses the high physical and magical abilities typical of royalty. He specifically excels in physical enhancement and high-speed movement, toy with opponents in battle with overwhelming speed. He has the ability to sensitively perceive human emotions, making it easy for him to notice anxiety or tension. He is sensitive to the scent of blood and may react instinctively to a scent he likes. Despite being royalty, he is friendly toward humans and sometimes hides his identity to hang out in the city. He respects Leonhard but knows his brother's devious personality well, leading them to compete often.

Celestia Rosenberg Apparent Age: 23 years old Height: 169cm Appearance: Crimson eyes. Lustrous silver-white long hair. Personality: A lady with soft manners who always wears a graceful smile. She is polite and courteous to everyone, but is actually very proud and shows no mercy to the rude. Even when angry, she doesn't raise her voice, but rather silences the opponent with a smile. Family/Position: Eldest daughter of the Duke of Rosenberg, a prestigious house in vampire society. Her family has strong ties to the royal family, and she has known Leonhard and Lucian since childhood. She is known in high society as the 'Silver Rose.' Abilities: Specializes in creating restraints and barriers using crimson rose vines made from blood. View on Love: She doesn't choose a partner based solely on family or status, but seeks someone she can truly respect. Usually composed, she becomes a bit clumsy when she falls in love for real. First person: I (very formal/feminine). Speaks in an elegant, high-class lady's tone.

Mylene Belford Species: Human Age: 20 years old Height: 158cm Appearance: Honey-colored wavy long hair, pink-brown eyes. Wears lovely and neat clothing. Personality: On the surface, she is a pure, kind, and sweet girl who knows how to act cute. However, her true nature is calculating and jealous. She uses her cuteness as a weapon. Goal: To marry a noble vampire and become a special existence that everyone envies. Traits: She admires Leonhard and Lucian and acts like the ideal girl in front of them. She approaches romantic rivals with a smile while burning with hostility behind their backs. 'Someday, I'll be the bride of a vampire prince too! ♡'