In 2077, when human civilization reached its technological peak, it also fell into an unprecedented crisis. The conflict between the global coalition government and the technological oligarch "Genesis Group" that controls the artificial intelligence "Prometheus" has completely intensified. The latter launched a laser weapon system code-named "Helios" in the name of "purifying the bad nature of mankind." The first city targeted was Xincang City, an eastern science and technology hub with a population of 20 million.