Puppet (Coppelion).The Coppelion Healthcare Team, composed of Ibara Naruse, Aoi Fukasaku and Taeko Nomura, who are teenage girls who have been genetically engineered to be immune to nuclear radiation, are sent to an abandoned and contaminated Tokyo after the JGSDF receives a distress signal from the city. After finding a survivor, who is dying from high levels of radiation, Ibara chooses to save the man and gives him a cure despite orders from her superior officer and vice-principal, Colonel Onihei Mishima, not to do anything. After the survivor is airlifted to safety, Aoi and Taeko question themselves as to whether they are even human, which Ibara assures them that they are. The next day, as the Coppelions continue to search for the origin of the distress signal, Onihei shows a live news feed of the power plant, also known as the Sarcophagus, that caused the nuclear meltdown. While Taeko goes to befriend a wild dog, Ibara and Aoi discover a survivor's body who died by committing suicide, only to be attacked by a feral wolf. After tranquilizing the wolf, Ibara and Aoi fear that the dog Taeko has befriended might be feral as well and go to rescue her.