Urban Future: Developing a Different World

Three thousand years ago, humans had reached tens of billions. Then a disaster happened I don't know when the disaster started and I don't know when it will end. By the time written records began again, the global population had reached 100 billion. How to find a place to survive? This is a major problem facing administrators in various districts. 36 Years ago. When the first alien territory was consolidated into the Chinese administrative region. Everyone understands that the journey of mankind is in the endless sea of ​​stars.