I have spent five hundred years in Lingshan, and I have developed a power that can defeat all dharma, and even the Buddha would praise me. But I couldn't bear the loneliness, and fell in love with Buddha's sword that had been dusted for a hundred thousand years. The Buddha was furious, but he could not punish me, so he demoted his sword to the lower realm. As a man, of course, I have to protect the beauty all the way, so I changed my name to Gu Xuanyuan, stayed with my wife, gradually recovered her sword heart, and returned to the sword ancestor. At the end of this journey, we suddenly discovered that the three realms were about to collapse, and both the Buddha and the Demon King would run out of life, and all this was arranged by the Buddha. The Buddha and the Demon Lord passed away one after another, leaving the collapsed Three Realms to my wife and me to deal with. Only then did we discover that as early as a hundred thousand years ago, when the ancestor of the human race passed away, arrangements had been made for all this.