A seventeen-year-old ordinary college student accidentally got involved in a completely unfamiliar world except the demon master. Only then did he discover that in addition to this world, there is another Pangu realm threatening the entire world. There are countless demons in this world. An unprecedented disaster is about to strike, and everyone believes that he is the only savior. Yang Xu didn't want to be involved, but countless disasters swept through, and Yang Xu found that he had no choice!