Prehistoric Qi Refining: Start with Heaven-Defying Equipment

On February 21, 2021, the end of the world comes, and aliens invade. The weapons of various countries are difficult to compete with. In a civilian primary school in the mountains and valleys of China, there is a crouching tiger, hidden dragon. In this most chaotic era, the most chaotic era, the earth's energy has been robbed of nothing, and only a group of primary school students are trying their best to resist. I wonder if we can save the earth... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.