Thousands of millenia have past since the industrial revolution. Though feats of geoengineering, man has hollowed the earth, moving mountains and carving continent-sized chambers deep below the surface, his cities spilling over the boundaries of the surface and into the earth itself. Through millenia of decay and extraction, much of the earth's surface water has flooded into vast subterranean seas, or been taken away to the stars. The races of man who did this have long since perished, their hadal cities flooded in cold black brine. His descendants cluster around small inland seas upon the surface, nation-sized oases seperated by thousands of miles of petrified desert.
Ubai is the homeland of