As the prisoner explains how he is 'a novelist who writes in reality', a strange being accompanying him traps Shinjuurou in a vision where he is a cameraman shooting a film about a war that never happened. As Shinjuurou becomes curious about whether the director is involved with one of the actresses, he gets the nagging feeling that there's a mystery to be solved. As Shinjuurou loses grip on this reality, he discovers the director has been killed and believes himself to be the culprit.
Un-Go is set in a war-torn Tokyo, in a near-future Japan. In response to Japan sending their military abroad as peacekeeping forces, terrorists launched multiple attacks on Japan, killing many people and destroying much of its cityscapes. Some time after the war receded to a period of uneasy peace, the Japanese Parliament passed the "Information Privacy and Protection Act", which gives the Japanese government control over the Internet. Detective Shinjuurou Yuuki and his strange partner Inga make a living in solving crimes and exposing human souls, all influenced in some way by the dystopian backdrop.
