Earth is on the tail end of its recovery after suffering near-apocalyptic events. Catastrophic storms and sudden, dramatic shifts of the tectonic plates almost destroyed modern society. And to make matters worse, a mysterious disease that would later become known as the Deep Sleep Syndrome swept through the population. Penthus Argyris is one such person affected by this illness. Abandoned by his mother—his last living relative—he wastes away in a hospital ward.