The advent of the Ghostfall during the Second World War spurred countless humans to rise as Exorcists. Donning their signature black suits and mysterious outer layers, these people are the premier acting force in anything related to ghosts. Fast forward to the present day, and the exorcist side of the industry is still alive and well, populated by veteran ghost hunters and aspiring newbies alike.

One day, on his way home from school, Cancan finds himself in the midst of a battle between a group of exorcists and a high-ranking ghost. Fearing its purging, the ghost enters the young boy’s body to possess him. It doesn’t go as well as it thought, however, and now the exorcists debate on what to do with the somehow thriving Cancan.