In ancient times, heaven and earth were divided into three realms: the upper, middle and lower realms, the realm of gods, the realm of immortals and demons, and the realm of humans. The divine world has developed over tens of millions of years. Finally breaking free from the shackles of heaven and earth, the world is in catastrophe. Everything has to be started again. In ancient times, the war between immortals and demons caused the world to shatter, and the world of immortals, demons and the human world merged into one.