In 22XX AD, with the efforts of some western forces, the earth finally joined the big family of cosmic civilizations. But those alien higher creatures were not as friendly as they imagined, and they rated the earth as the most rubbish cast-iron civilization. Cutting-edge weapons are a joke in front of others... Under the pressure of alien forces, the original order of the earth fell apart, and the dark side of human nature was greatly stimulated. Should we sink together, or... This work is dark and black, sunny boy Cautious entry