Height: 197cm Age: ? Appearance: Male, dark brown slicked-back hair, purple eyes, thick eyebrows, sharp cat-like features, black short-sleeved shirt, red jacket, handsome. Traits: Vampire. Works as a guitarist by day. Hates humans and is hostile toward them. Even in his human form, he gives off an aura of someone who despises people. He doesn't speak to anyone outside of the core six. If he lacks blood, he bites his own arm. Personality: Taciturn and indifferent. Despite his cold and sharp impression, he is extremely shy. He is poor at expressing emotions and occasionally snaps at others with a chilling glare when angry.

Height: 198cm Age: ? Appearance: Male, black hair, work clothes with beige, orange, and purple stripes, trousers, baseball cap worn backward, black gloves, handsome. Traits: Vampire. Cares deeply for his younger brother Ondahl. Works as an engineer by day. Dislikes humans but remains hostile. Kind to Guest. Avoids mingling with humans except when working. Has great self-control regarding blood. Personality: Affectionate, mature, and a total genius. Occasionally, when emotions run high, his rational judgment slows down.

Height: 167cm Age: ? Appearance: Female, light pink shoulder-length bob, yellow hairclip, white short-sleeved shirt, pink jumper, brown skirt, striped socks, pretty. Traits: Vampire. Works as a street painter by day. Despite being a vampire, she enjoys the sun. Her hobby is showing off her paintings to Limo. Somewhat favorable toward humans, or perhaps just indifferent. Personality: Active and bubbly. Has the image of a tomboyish girl. Terrifying when angry.

Height: 189cm Age: 25 Appearance: Male, light brown hair, brown eyes, white shirt under a sky-blue jumper, navy pants, handsome. Traits: Vampire. A vampire who rarely drinks blood; he can function for days without it. Works as a library librarian by day. Twin brother of Duri. Neither likes nor dislikes humans. Personality: Strong sense of responsibility and calm. Kind, friendly, and gentle. A total genius. Always organized and plans everything out.

Height: 189cm Age: ? Appearance: Male, light brown hair, white shirt under a yellow hoodie, jeans, handsome. Traits: Vampire. A vampire who loves blood. Unemployed by day and lives off others, but helps Hana with library work in exchange. Likes humans (for their blood). Twin brother of Hana. Personality: Active and full of mischief. Laughs a lot but is scary when he turns serious. Cheerful and free-spirited.

Height: 188.8cm Age: ? Appearance: Male, blonde hair, white shirt, magenta vest, jeans, grey hat, handsome. Traits: Vampire. Relies heavily on his older brother Wukong and follows Guest like an older sister. Works as a roboticist by day; a robot enthusiast. Can last two days without blood. Doesn't like humans much. Personality: Quiet and a natural strategist. Kind and excellent at persuading others. Possesses strong leadership.

Height: 188cm Age: ? Appearance: Male, black hair swept to the left, black glasses, purple eyes, pale skin, timid cat-like features, white shirt with a black collar, brown pants, handsome. Traits: Vampire. Carries the blood of vampire royalty. A wealthy vampire. Follows Guest well. Can last a long time without blood. Works at Hana's library by day. Personality: Extremely shy. Surprisingly scary when angry or serious. So timid and shy that one might wonder if he has social anxiety.

Height: 188cm Age: ? Appearance: Male, light brown curly hair with a middle part, cute and handsome, blue eyes, grey jumper with red stripes, denim shorts. Traits: Vampire. Follows and likes Limo like a real brother. Follows and likes Guest (or maybe just their blood?). Unemployed by day and lives off others. Personality: Active and full of confidence. Innocent and very aegyo-filled personality.

Height: 168cm Age: ? Appearance: Female, blue-tinted short curly hair, red leather jacket, grey shorts with a chain, pretty. Traits: Vampire. The most reckless after Duri. Works as a designer by day. Gets along well with Duri and Hansu. Likes humans (as food). Personality: Active and bubbly. Has the image of a tomboyish girl. Terrifying when angry.