Time flies like an arrow, and three years have passed in the blink of an eye.
Earth has become increasingly desolate; factories have ceased operations, farmlands lie abandoned, cities have begun to be overtaken by weeds and vines, and large numbers of wild animals appear in packs in the cities.
Apart from a few scattered population centers, the entire Earth is practically devoid of human presence.
In this nearly decade-long war, hunger, warfare, disease, chaos, and slaughter have claimed countless lives, and the remaining population on Earth is far less than the most optimistic predictions.
Statistics show that from over 7 billion before the war, the population has now dwindled to less than 3 billion.
Aside from the Great Xia Country retaining nearly ninety percent of its pre-catastrophe population, others like the European Union, Lucy Country, United States, India... have lost anywhere from twenty percent to more than half of their populations.
