Set between episodes three and four of the Ergo Proxy anime, this side-story manga follows three travellers crossing the wasteland aboard the Centzon: the autoreiv Dorothy, the astronomer Leon, and the mercenary Heart, bound together by little more than a shared wish to see the stars. Ergo Proxy regulars Pino, Vincent, Quinn, and Hoody turn up along the way, and the questions that haunt the main series surface here too: what an autoreiv owes its creators, how the Cogito virus spreads. It expands the world without altering the anime's own plot.