Take a Nap and Wake up as the Emperor of Mankind?

After sleeping for 40,000 years, Shiraishikawa woke up in a huge fortress. Then he was surprised to find that he became the only "ordinary person" left on earth. So of course the burden of revitalizing the entire human race fell on his shoulders. At this moment, the entire earth has become a mess. Shiraishikawa used his inherited fortress system to start his own path to the emperor. Expand branch base. Archaeological technology research and development. Chatting and laughing with the evil god of warp. Exchange technology with tech barbarians. This is an era where everything is full of vitality and competition. System prompt: A wild Void Dragon Maid is approaching. Do you want to capture it? This book is a fan story told from the perspective of a human emperor who travels across time. The time is set at the beginning of the Emperor's war to unify Terra. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.