Tanmoku Ki is the head of a powerful family of Exorcists. He is known as the Youmeishi and master of the Tanmoku household. His main duty is to perform a large scale exorcism to vanquish and cleanse the earth of evil spirits and pass the wishes of the living to god. Tanmoku Ki can't really take care of himself, that's why he needs someone who's willing to stay by his side, and be his spirit shadow for life.