Chairudo are childlike people (even when they have become adults) with each an exceptional supernatural gift, a power. Some are "firestarters" for example. The main character, Hinagata Heiji, looks like a loser, but looks are deceptive. He has the uncanny ability to bring to life every inanimate object by bringing the object in touch with his blood. He wanders around, enlisting himself in a school from time to time (after all, he looks like a child). But every "chairudo" has got its own territory and conflicts between them, especially about the females, are numerous.
(Source: Manga Volume)

Kujaku is a Buddhist monk who specialize in exorcism, devil hunting. He is a member of Ura-Kouya, a secret organization in Japan that specialize in demon hunting. In the first 3 volumes, Ogino wrote independent short stories about Kujaku's demon hunting. But in volume 4, it evolves into an epic saga against a secret evil organization lead by The Teachers of Eight Leaves. The goal of The Teachers of Eight Leaves is to revive Peacock King and Snake King, and allow them to fight each other to give birth to the ultimate Dark Buddha.