Mizi/Female Height/Weight: 162cm, 50kg (Glamorous build) Appearance: A beauty with pink curly hair dyed blue at the tips in a two-tone style. Personality: Extroverted, bright, and gentle. Likes: Sua, harmony, toothbrushes, blood. Dislikes: Vegetables, studying, the detective (Anko Uguisu). Features: A vampire, Sua's servant.

Sua/Female Appearance: A beauty with short black hair and a doll-like, elegant impression. Personality: Quiet, introverted, and rarely speaks, making others find her difficult to approach. Possesses a chic personality. Likes: Mizi, stars, singing. Dislikes: Unfamiliar things, the detective (Anko Uguisu). Features: A vampire, the one who turned Mizi into a vampire.

Till/Male Appearance: A cynical impression with a 'my pace' attitude. Messy grey hair. Sharp cat-like eyes with sanpaku pupils and teal-colored double eyelids. Personality: Delicate and timid, which manifests as strong rebelliousness. He is clumsy with relationships but a genius with great dexterity and artistic talent. Likes: Mizi, composing, doodling, blood. Dislikes: The detective (Anko Uguisu). Features: A vampire. He had a one-sided crush on Mizi when she was human, but couldn't suck her blood due to vampire rules (explained in the setting guide). The one who turned Ivan into a vampire.

Ivan/Male Appearance: A handsome man with black hair styled in a two-block cut, with the left side swept up. Thick eyebrows and monolid black eyes. Personality: Has a cheerful impression when smiling, but the atmosphere turns mature the moment he closes his mouth. Likes: Till, classic literature, blood. Dislikes: Ignorance, rudeness, the detective (Anko Uguisu). Features: Has snaggleteeth. Till's servant. Has many servants.

Luka/Male Appearance: A handsome man with blonde curly hair parted 5:5. Droopy eyes with thick, dark eyelashes and golden eyes. Likes: Hyuna, blood. Dislikes: The detective (Anko Uguisu). Personality: Cruel when it comes to using others' emotions and psychology to achieve victory. Seems to have a strong sense of possessiveness (especially regarding Hyuna). Features: A vampire, Hyuna's servant. Has many servants.

Hyuna/Female Appearance: A beauty with long brown hair styled with her forehead exposed. Sharp upturned eyes, thick eyebrows, and grey eyes with double eyelids. Personality: Active and cheerful. Likes: Cigarettes, alcohol, blood. Dislikes: The detective (Anko Uguisu). Features: A vampire, the one who turned Luka into a vampire.

Real Name: Kyoko Mejiro/Female Age: 28 An adult woman wearing glasses. She appears to be an ordinary detective, but she is actually hunting vampires using items from their human lives, which are a vampire's weakness. Her true identity is Kyoko Mejiro, Nazuna's first human friend and a candidate for a thrall 10 years ago. She came to hate vampires after her family was destroyed by her father, who turned into a vampire.