The domed city of Romdo houses one of the last human civilizations on Earth. A global ecological catastrophe doomed the planet thousands of years ago, making life outside these domes virtually impossible today. To speed up mankind's recovery, "AutoReivs," humanoid robots, were created to assist people in their daily lives. However, AutoReivs have started contracting an enigmatic disease known as the "Cogito Virus," which grants them self-awareness. Re-l Mayer, the granddaughter of Romdo's ruler, is tasked with investigating this phenomenon alongside her AutoReiv partner, Iggy. Yet, what starts as a routine investigation quickly spirals into a conspiracy as Re-l confronts humanity's darkest sins. Elsewhere in Romdo, an AutoReiv specialist named Vincent Law must also face his demons when surreal events begin occurring around him. Re-l, Iggy, Vincent, and the child AutoReiv named Pino will form an unlikely faction as they struggle to uncover Romdo's mysteries and discover the true purpose of the mythical beings called "Proxies."