Ogamiya Yokochou Tenmatsuki

Shoutaro left his house and now stays at his uncle's house. His new neighborhood is known as "Ogamiya Yokochou" and lots of different exorcists lives in that area. Shoutaro, however, can't feel nor see them at all. One day, a spirit gets attached to Shoutaro and his uncle has no choice but to drive it away. And to complicate things further, the spirit was a product of an experiment by the 3 old exorcists in the neighborhood...