This series is actually horrible. It took me more than a couple times to get into this anime. As a spin-off of Blood + I did come into this series with high expectations. My first impression was that it was...interesting. I kept watching because I wanted to see how CLAMP would try to pull it off. I gave it a second chance because I liked the art style, but my opinion on that was quickly changed. What I will say is, don't come into this anime expecting it to be anything like Blood +. The only real connection I can find is that both protagonist's names are Saya.
Characters 3/10
The heroine of Blood + is likable, and powerful, while the heroine of Blood-C is weak and definitely does not keep her promises. As awful as the main character was, the other characters did not do any justice whatsoever. I am only giving the characters' portion a three out of ten because, surprisingly, there was one decent character whom I enjoyed throughout the series. Only one.
Story 2/10
I didn't see an actual explanation of what was going on until about episode three. So until that episode three, I was watching this girl kill these random statue monsters without knowing what they were or even why they were there. I never thought I would actually have to guess what was going on. And all of these things she was doing was probably not legal, or logical. I honestly don't find a huge man-eating bunny to be very relevant, because first of all, bunnies are cute and secondly, I half expected what Saya was to be killing to be vampires or at least something mildly scary. The worst part about it, is that when I did finally figure out what was going on, I was still confused. That being said, the way they explained things in this show was utterly disconcerting and caused confusion.
Art 2/10
I have to admit, I actually really liked the art when I saw it the first time. I thought that Saya looked super adorable with her glasses and long black hair. And then, I saw their bodies. I'm sorry, but I'm not too fond of lanky, disproportionate, stick bodies. Enough said.
Overall, I would have to rate this show a 2/10 at best. I enjoyed some parts of it, like when the evil bunnies ate everyone and when the show was finally over.