A university student with the surname Zou came alone to a scenic area in the deep mountains to explore. By accident, he fell down from a cliff. When he woke up, he found himself at the bottom of a valley that was impossible to climb out of. Looking up, he could only see a sky as big as a plate. He thought that he would surely die, and was so panic-stricken that he lost a lot of weight in just two days.
At dusk on the third day, he was in a daze...