In 2050, black flyers spread all over the world overnight. It is announced that the quality inspection task for all mankind will begin in 20 days. People look at it, people are puzzled, and people ignore it. The system couldn't bear it and forced all humans to enter forward activities after five days. High school students riding home to enjoy their big break? Enter the copy! (Please praise for the beautiful cover)
Purpose: Survival of the fittest
