Kannagi: Crazy Shrine Maidens (かんなぎ Kannagi, lit. Shrine maiden) , is a Japanese manga series written and illustrated by manga author Eri Takenashi. The manga began serialization in the Japanese shōnen manga magazine Comic Rex on December 9, 2005, published by Ichijinsha. An anime adaptation produced by A-1 Pictures first aired in October 2008 in Japan.
Plot Summary (anime): An art student named Jin Mikuriya carves a statue from the wood of the Kannagi tree only to have the statue come to life in the form of a goddess, who has now taken over the statue. He and "Nagi" work together to destroy the impurities that are gathering in the town.
(source: Wikipedia, ANN)