Straight A student Eugene Korekishi doesn't believe in ghosts...but his classmate Mogari Shishikuro is an exorcist who chomps on them whole! Mogari can't see ghosts on his own, so once he and Eugene meet someone with the sight, there's only one path left--to form an exorcist club at school and have a great time doing it!

In search of a fourth member for the club, Mogari, Eugene, and Kaoru set their sights on recruiting Kotaro Tamon, a classmate who seems to be able to talk to ghosts. Unfortunately, Kotaro's got some major problems communicating with living humans! Will Kotaro be able to overcome his anxiety and join the Phantom Busters?