Project Lingxiao, a top-secret joint defense initiative to counter extraterrestrial threats. Its headquarters "Buzhou Mountain" base is built underground on the Qinghai-Tibet Plateau and is the center of human resistance. Humanity relies on the "Xuanjia" corps equipped with "Shanwenjia" individual soldier exoskeletons, "Yinglong" class aerospace fighters, and "Golden Crow" class aerospace carriers as the last barrier to find hope in desperate situations...
