Its like a croiss beteeen tsukihime & digimon-
The main character of the show- a reclusive and morose 2nd year middle schooler named Jun has a fetish for supposedly cursed objects, trying to find ones that are really cursed. He submits a chain letter that appears to be little more than another hoax, and ends up with a supernatural semi-vampiric wind up doll for a master.
The show is cutsey without being annoying, has great music, and has an overall creepy vibe. I think I'm gonna like this one.