Even after WWII ended with a nuclear holocaust, war continued to rage across the planet, further destroying the environment and draining the world of its resources. As old borders dissolved, new city states run by conglomerates and warlords emerged. Driven by their greed and lust for power, they liberally utilized weapons of mass destruction in their personal conquests. The resulting devastation triggered a vengeful change in the climates, which brought the world into a bleak and cruel age; what remained of humanity named this age “The Acid Rain Era”.