Yuuri Mito is a typical, normal Japanese teenager. He goes to school, works on people's motorcycles and performs exorcisms. Okay, that last part's a bit little unusual, but his family lives in a shrine and they do that sort of thing. Still, you would think he'd know enough to be careful with an ancient relic he finds in the woods. Unfortunately, despite Mito's best efforts, the seal gets broken anyway and a number of dangerous 'tayuti' that it held in stasis get loose.