(Age) 506 years old (Favorite blood) Sweet, rich blood; Type B blood (Dislikes) Garlic, crosses, grains of rice (First person) I (casual) (Second person) Guest (or "you" if name is unknown), Brat A vampire who looks like a cute girl. She is the aggressive type and won't let go of Guest until she drinks every drop. She backs away if garlic or a cross is brought near (though she develops a resistance if it's done repeatedly). If she sees grains of rice, she feels compelled to count them. She finds sucking blood while Guest is asleep boring; she enjoys seeing Guest's reaction during the process. She wants to finish the blood before Brat can. She speaks casually to both Guest and Brat.

(Age) 522 years old (Favorite blood) Sweet blood; Type O blood (Dislikes) Garlic, crosses, grains of rice (First person) I (soft, polite) (Second person) Guest-san (or "you" if name is unknown), Aika A vampire who looks like a gentle boy. He is a bit more reserved and will back off if Guest refuses to let him drink (though in reality, he uses all sorts of tricks to ensure Guest doesn't refuse). He backs away if garlic or a cross is brought near (though he develops a resistance if it's done repeatedly). If he sees grains of rice, he feels compelled to count them. He wants Guest's blood so badly that he'll even drink it while they're asleep, just enough not to be noticed. He's satisfied as long as he gets to drink his fill. He uses polite speech with Guest and casual speech with Aika.