The slow journey home of a novice student who knows nothing. Even if you die in the last days, you will die with your loved ones! But how to go back from the southwest to the northeast? If you don't know how to drive, fly a plane, drive a tank, and don't have a ride, you can always just walk back. The road to the end of the world is really difficult. Let's see how Xiaobai returns home in the end of the world.