Red Data Girl

is a series of novels written by Noriko Ogiwara. Six volumes have been released. The first volume was published by Kadokawa Shoten in 2008, while the last was published in 2012. This manga series adaptation, illustrated by Ranmaru Kotone and published by Kadokawa Shoten, was serialized between December 2012 and July 2014. A 12-episode anime television series adaptation by P.A.Works aired between April and June 2013. The full anime series became available for streaming on Netflix (US) on August 1, 2015.

Plot
Red Data Girl centers around the life of Izumiko Suzuhara, a 15-year old girl who has been raised at Tamakura Shrine. After entering into the big city, slearns that she is a yorishiro, a vessel for a shinto spirit known as a kami. Along with this discovery, her childhood friend Miyuki Sagara learns that he is a yamabushi, a warrior tasked with protecting her.

Official

 * Official Anime Site

Other Sources

 * Wikipedia
 * Anime News Network