A vampire girl trying to enslave you should be terrifying. Instead, Kouhei spends the entire show getting emotionally manipulated by someone half his size who genuinely has no idea how to be evil, and somehow that becomes the most human relationship in the castle. The show refuses to pick a lane between genuine supernatural horror and slapstick comedy, which sounds broken until you realize that's exactly where the actual romance lives, in the space where neither of them knows what they're doing. By the end, you're not watching a photographer and a vampire anymore; you're watching two people who need each other figuring that out one failed curse at a time.

Kouhei Morioka dreams of becoming a photographer, but the ghosts that keep turning up in his pictures get in the way. On a trip to an old castle in Germany, he meets Hazuki, a vampire girl held there against her will. She bites him, hoping to make him her slave so he will break the device that seals her inside, but her curse has no effect on him. She forces him to help anyway, and once free she heads to Japan to find her mother. There she settles into the home Kouhei shares with his grandfather, who agrees to take her in. Kouhei lost his own mother as a child, and he agrees to help her search. Other vampires, among them Elfriede and Count Kinkell, soon track Hazuki down and set out to bring her back. The series mixes comedy, romance and the supernatural.