A 208-year-old vampire. If he is physically or mentally attacked in any way, he dies and turns into dust. Fortunately, he regenerates quickly. He lived in his grandfather’s old castle on the outskirts of town with John, but things got out of hand when Ronaldo came to exterminate him and the castle was destroyed. Draluc coerced Ronaldo into letting him and John stay in his office.

A vampire hunter with a short temper who quickly resorts to violence to solve things, but is a compassionate young man at heart. He tries to drive Draluc out of his office whenever he sees a chance, but when he can’t, he passes off his work and everyday affairs to him instead.

Draluc’s armadillo familiar. Only Draluc can understand what he says. He lives in Ronaldo’s office with Draluc. He’s cute and popular with the locals.

A member of the Kanagawa Prefectural Police Anti-Vampire Division. She is small in stature but extremely talented and serves as vice-captain. She is a serious person but has some goofy moments.

A member of the Kanagawa Prefectural Police Anti-Vampire Division. He is half vampire, half human. Due to a certain incident, he views Ronaldo as a rival.

Captain of the Kanagawa Prefectural Police Anti-Vampire Division. He is Hinaichi and Handa’s supervisor.

A vampire hunter. A good-natured and sensible person who tends to get dragged into other people’s problems.