There is a Silent Cliff on Fangzhu Mountain, and under the cliff there is an abyss of thousands of feet, Guixu Valley, which is the source of thousands of waters. The black water in the valley is rippling, where the remains of Yinglong and the souls of many gods, immortals and monsters are buried. Because there is Yinglong bone blood in the ruins, drinking it can lead to immortality, which attracts all kinds of monsters to covet it. However, just standing on the top of the Nirvana Cliff on the edge of the Guixu Valley will cause the souls in the valley to absorb their spiritual consciousness, fall into the Xu Valley, and turn into nothing. Only the black dragon Yiqi Suguang, who was born from Gui Xu, can travel freely.
The Dongwanggong in the Purple Mansion next to Gui Ruins of Suguang Sutra enlightened him, understood the world, understood the truth, and became a close friend. The Jade Emperor then ordered Yi Qi to guard Gui Xu and drive away all intruders. After being named the God Lord of Guixu, no one dared to break into the Cliff of Silence.
Yi Qi Suguang Su liked to talk about Buddhist scriptures and Taoism. One day he went down to earth and made friends with Tantai Lingxu, a Confucian disciple who did not love Confucius, Mencius and Lao Zhuang, and recommended him as a disciple of Dongwang Gong. Because the Tantai family had an old grudge with the Dragon Clan, Su Guang was beaten up after discovering him. The dragon clan used Ling Xu's life to threaten Su Guang to hand over the longevity water. Su Guang and his wife died to save Ling Xu, leaving behind their daughter Kuo'er. Kuo'er was adopted as the adopted daughter by the Queen Mother of the West and the Duke of the East. Kuo'er was left with the Queen Mother of the West, and the wild and untamable Kuo'er was sent to the Dragon King of the East China Sea. Kuo'er voluntarily removed her scales and horns in order to get the Jade Emperor to agree to send Kuo'er back to the East Prince.
After Kuo'er returned to Fangzhu Mountain, Kuo'er was assassinated by the Dragon Clan. In order to protect Qi'er, Duke Dong ordered his disciple Tantai Lingxu to marry Qi'er. Lingxu's mother was the demon king Bashe, so he was supported by the demon clan. The story begins here. Lingxu already has a woman he likes in the mortal world, and is forced to marry Feier. After that, the two started to fight and fell in love with each other...