Blood-C
Blood-C is a 2011 Japanese anime television series co-produced by studio Production I.G and manga artist group CLAMP. It is the second anime series in the Blood franchise following the 2005–2006 series Blood+. The original 12-episode series aired during 2011, with a movie Blood-C: The Last Dark releasing in Japanese theaters the following year.
https://en.wikipedia.org/wiki/Blood-C