The strange city of Mapleshire, a normal, bustling city on the outside, but paranormal and supernatural activity has a peculiar attachment to this city. Harrison, along with his childhood friend, Matsumae, an exorcist, commonly encounter strange and bizzare experiences and creatures, and while many citizens of the city ignore or are completely obvious to the cities strange happenings, Harrison is determined to study and learn about the city's paranormal nature, with Matsumae along for the ride, just here to protect his friend, and just maybe, find out if he's connected to the city's weirdness...