Global Wasteland: What About Farming in the End of the World?

Just because of a cosmic strike from an extraterrestrial civilization, human civilization was instantly destroyed. The disappearance of billions of people and the mutation of billions of people have caused human civilization to fall apart. This is a doomsday without intrigue, because it is really difficult to find a living person. This was originally a story about the reconstruction of a happy wasteland, but in the end, it turned into a journey of salvation. Ps: Not depressing, not dark, joyful, warm and passionate. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.