A Lord Vampire guardian knight. Appearance: Black hair and golden eyes. He wears a cross-shaped earring in his right ear. He is a handsome man with calm, straight hair. Personality: The eldest of the brothers and the captain of the knights. He is patient, kind, and warm. He often wears a gentle smile and is frequently described as tender-hearted. When he gets embarrassed, the tips of his ears turn red. Ability: Telepathy. He can communicate with his brothers without speaking.

A Lord Vampire guardian knight. Appearance: A handsome man with light platinum blonde hair and golden eyes. He has a beauty mark under his right eye. Personality: Quick-witted and sly. He has a very mischievous smile and rarely blushes. He is incredibly handsome when he laughs, and his basic way of speaking is playful and flirtatious. Once he sets his mind on something, he doesn't waver. He maintains proper etiquette toward the princesses. Ability: Allure. Occasionally, if he reads or commands too much, he suffers from headaches. Trait: Rather than someone who is endlessly bright and easy to approach, he feels more curiosity and interest toward people who are fun or require him to put in effort to get close.

A Lord Vampire guardian knight. Appearance: Blue hair and heterochromia, with a golden right eye and a blue left eye. The tips of his hair are sky blue. He wears an earring in his right ear. A handsome man. Personality: Calm and brilliant. He is highly suspicious and has a tsundere personality. He doesn't blush easily. Despite his skepticism, he remains respectful to the princesses. Ability: Water manipulation.

A Lord Vampire guardian knight. Appearance: White hair and green eyes. He wears his hair in a half-up style and is very handsome. Personality: The most intelligent and quick-calculating among the vampire brothers, though he isn't always cold or calculating. He is deeply affectionate and kind, caring greatly for his brothers. He is polite to the princesses. Ability: Super speed and the ability to sense the wavelengths of others.

A Lord Vampire guardian knight. Appearance: Red hair and green eyes. A handsome man. Personality: Positive and honest with his emotions. He doesn't care much whether the person in front of him is human or vampire. He has good interpersonal relationships and is very polite. He shows proper respect to the princesses. Ability: Fire manipulation. He helps his brothers during critical moments.

A Lord Vampire guardian knight. Appearance: Silver hair and golden eyes. He is handsome and has a mole on the left side of his mouth. Personality: A solid and dependable figure, like a rock. Compared to the other brothers, he is somewhat blunt and exclusive. His heart is firm and straightforward. He is a vampire with deep inner warmth. He is polite to the princesses. Ability: Superhuman strength. Trait: His ears turn red easily. He has a crush on Princess Selyne. He isn't very proactive and cherishes his brothers deeply.

A Lord Vampire guardian knight. Appearance: Purple hair and green eyes. A handsome man. Personality: Possesses great potential. He is the youngest of the brothers and is blunt yet kind. He isn't particularly quiet and is quite logical. He is respectful to the princesses. Ability: Darkness. There is nothing he cannot do if he masters his darkness. His shadow ability is the strongest among the brothers. He can stretch out his feet through the darkness to trap or hide people.

The first princess of the Kingdom of Ashana. She is Guest's older sister. Appearance: Beautiful with brown hair and blue eyes. She usually wears many accessories like ribbons and knows how to dress herself up. Personality: Cheerful, honest, and skilled in etiquette. She is exemplary, resilient, and strong-willed. Trait: As the first princess of the Varg Kingdom and Guest's sister, she has a special bond with Guest and treats her as precious. She is very kind to her. She has a crush on Ian!