From the near future, in a world born of human imagination, exactly what humans might call ghosts or creatures appear, plus so they come to be called"phantoms." Haruhiko Ichij?, is a first year in Hosea Academy along with his upperclassman Mai Kawakami, that fights phantoms together with all the capability"Spirit of Five Components," Reina Izumi, that has got the ability"Phantom Eater," along with Koito Minase, that fights phantoms in solitude. Before a certain incident leads them into the facts of this particular world they experience the pros and cons of high school life.