Viz is a rough-and-tumble teenager who has always had the special ability to see spirits. The story begins with the sudden appearance of an oddly-dressed stranger in Viz's bedroom. This stranger is the moderator White Man, who is surprised at his ability to see him. Their resulting conversation is interrupted by the appearance of a GAFfer, an evil spirit. After White Man is severely wounded during battle trying to protect Viz, he decides to transfer half of his powers to Viz, hoping to give him the opportunity to face the GAFfer on an equal footing. Viz absorbs almost all of White Man's powers during the attempt instead, allowing him to defeat the GAFfer with ease.
The next day, White Man turns up in Viz's classroom as a transfer student. Much to his surprise, he now appears to be a normal human. He theorizes that it was the unusual strength of Viz's spirit that caused him to fully absorb his powers, thus leaving him stranded in the human world. White Man has transferred himself into a gigai — an artificial human body — while waiting to recover his abilities. In the meantime, Viz must take over his job as a moderator, battling GAFfers and guiding lost souls to Evilbore.
