In 2532 AD, 500 years after the end of the Third World War, there were no winners in the entire world. Most of human science and technology was broken and development was severely lagging behind. The earth was riddled with holes and all cities were destroyed. The remaining people either stayed away from the cities or walked out of urban underground shelters. People gradually adapted to the radiation pollution after the war. During this period, nature exploded with amazing repair power. The vegetation on the entire earth increased significantly, and the earth slowly entered the recovery period.