[Kaoru Chujo]

I've just reread the first 3+ vols of the manga and I can't help thinking: who should play the Princess? She looks like a child (most of the time) but acts like an adult. She's loving and violent and haughty and serious and queenly and managerial. She is well beyond tsundere. Maybe a combination of deredere and murderous, rather than deredere and tsuntsun.

My nominee? Sawashiro Miyuki, who can do just about anything, and has a bit of darkness in her voice. But there are lots of possibilities: Kawasumi Ayako, Tanaka Rie, even Endou Aya or Yukana.

The manga has both a fairly unique central character and a great male lead: he's serious and strong and hasn't yet acted silly at all, even in the midst of his doubts. I'll take Kiuchi Hidenobu (Ren in NANA, Hei in Darker than Black) for the male lead. And there are plenty of juicy side-characters, like Vera and the dangerous vampire count and the father and the student council pres and her shouta and the Haruna figure.

As has been said, the question is whether there is enough story, and how they will conclude an anime series.

EDIT: I've now read up to the end of v5, which is the most recent I can find in Japanese or Chinese, and that seemed to me to end at a reasonable climax, although it might mean some fairly drawn-out episodes, as some chapters seemed in the manga.