After being rejected by the final exorcist organization because of a taboo his parents had broken, Julian was approached by his continuous stalker, who granted him an opportunity the exorcist could not.
As Julian accepted that opportunity, and put his life on the line, he was transported into the most dangerous section of the Reverie Realm, the Second Heaven, being forced to face off against other exorcists and evil spirits alike.
But amongst all that, the mysteries of his own upbringing tie him deeply to the Reverie Realm, and to the choice his parents had once been forced to make.