It is revealed that Kazamori was actually a program known as RAI, one of the last built by Komamori before they were outlawed. As Kazamori is accused of killing the corpse that was assumed to be him, Shinjuurou and Inga download Kazamori into a doll before he is taken into custody. After discovering that the corpse was an outside and learning that Kazamori's maintainer, Dr. Taku, was also a RAI, Shinjuurou and others soon discover the culprit is Komamori, who faked his death using the body of the real Dr. Taku so that his RAI wouldn't be used by the military. After Komamori is arrested, Kazamori moves his consciousness to a doll of a girl so he can continue its life.
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.
