In 2023, advanced alien organisms discovered the Earth, and the Earth was forced to play a game called "Civilization Upgrade"
After a year of playing the game, there are only less than 200 million people left of more than 7 billion humans.
"Don't you think they are raising gu?"
"After a brutal fight, only the elite remained"
Concept: The evolution of the earth is amazing, and flowers can bloom even in the mud.