Naoto Kuniyoshi is a bored, misanthropic youth who feels he was born in the wrong era, believing that he has more in common with the samurai and ninja of Japan's past than those living in the decadence of the present day. Having been nick-named "Ghost Boy" for his ability to go through life almost completely unnoticed by those around him, the twenty year-old student spends his days setting up spying equipment to stealthily take pictures of young women around his college campus, which he later photoshops into pornographic images for his "collection."