The Apocalypse Virus swept over Japan on December 24, 2029, the day widely known as the "Lost Christmas," killing its population and throwing the country into complete anarchy. In an effort to restore order, the UN dispatches the GHQ to aid with the situation by controlling the epidemic while simultaneously destroying all political sovereignty. A decade later, the country is still under their grip, unable to escape their cruel tyranny. Frustrated with the situation of the country, the Funeral Parlor rebel organization seeks to free Japan from the GHQ. The organization, led by the charismatic Gai Tsutsugami, seeks to steal a vial carrying the "Void Genome" in order to achieve their ambitions. The vial ends up in the hands of the internet.