The manga concerns the exploits of Souji Seta, the given name for the protagonist. Because of the nature of his parents' work, Souji had been transferring schools frequently. At the start of the story, Souji moved in from the city to Inaba, a small town where his uncle Ryotaro Dojima stays. As he gets ready to spend one whole year there, Souji is exposed to a series of bizarre murders that take place in the small town.