The Earth Is Too Dirty and Needs to Be Cleaned

There is a group of unknown beings supervising the earth where people cannot see them. They are like shepherds outside the sheepfold, and we are the sheep in their eyes. The earth is the sheepfold. Once the sheep in the sheepfold are disobedient, or they are unhappy, they will get rid of all the sheep in the sheepfold and replace them with a new batch of sheep. This sheepfold has been cleaned four times, and this is the fifth time they plan to clean it because the sheepfold is too dirty. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.