The story of Pii a young soul suffering from amnesia. Pii has a need need to seek the help of "Holy Water Students", people who sees ghosts; unfortunaltely his fear of the Holy Water group is not helping his cause. The formation of a bond between P and the group mean he must deal with Kamin, evil spirits trying to pump his soul to increase its own power. Fortunately, there is are Angels abe to to assist.
