Blood-C

Blood-C (ブラッド-C, Buraddo-C?) is a 2011 anime/manga series that is produced in collaboration by Studio Production I.G and Nanase Ohkawa of CLAMP. This is Production I.G's second anime series related to the Blood franchise, the first being Blood+, which aired in 2005–2006. Blood-C: The Last Dark (ブラッド-C：ラストダーク, Buraddo - C: Rasuto Dāku?), which acts as a sequel to the Blood-C series, was released in Japanese theaters on June 2, 2012.

Plot
Saya Kisaragi is a normal girl who is overly clumsy and kind. She lives with her father, the head of a shrine, and learns the 'art of the sword' from him. When she is faced with various forms of 'trials' that test her kindness, it brings misfortune for being 'overly-kind'. Against misfortune and for the sake of her friends, she maintains her kind heart and becomes stronger. However, in her journey, how will she fare, why is she being tested?

Official

 * Official Anime Site (Japanese)
 * Blood-C: The Last Dark's Official website
 * Production I.G website

Other Sources

 * Wikipedia
 * Anime News Network (Anime)
 * Anime News Network (Manga)