In Yuqing Pass, Elder Mu Chang was practicing in seclusion, while the sect leader was reading the sect's instructions. On the other side, the demon world caused misfortune to the demon king's daughter Ling Yu, causing the people to die tragically and become homeless. Soon, the news spread to Yuqingguan. The elders in Yuqingguan were the first to request a fight. The sect master personally went to the battlefield and cut off the demon king's head, which greatly inspired people's hearts. The king's son, Xu Yao, was planning a revenge plan. The next day, Xu Yao attacked the Yuqing Gate and was defeated shortly after the war. After the war, Xu Yao lived a life worse than a pig or a dog. In the end, he could not stand the setbacks of life and committed suicide. From then on, the monster clan became a legend.
Purpose: Cultivation of immortality