Yun Xi was originally an ordinary disciple of the Qinglan Sect in the human world with mediocre qualifications, but because of the Chen Yuan Mirror fragment hidden in his body, the gears of fate began to turn. The Dust Mirror, an ancient secret treasure, is rumored to be able to rewrite cause and effect, causing the three worlds of the fairy world, the demon world, and the human world to compete for it crazily.
The Lord of the Demonic Realm, Demon Zongzhengyuan, was once the god of war in the fairy world. He fell into the Demonic Realm due to betrayal and wanted to seize the Chenyuan Mirror and rewrite the past. He sent his men to prevent Yun Xi from looking for the mirror. When Yun Xi was in the sect, she was often ostracized by her fellow sect members. Fortunately, she was secretly protected by her master, Master Mo Yuan. During a sect trial, Yun Xi accidentally triggered the mirror fragments to repel the demon cultivators, which attracted the attention of all parties and also attracted an attack from the demon realm. In order to protect Yunxi from serious injury, Mo Yuan told her before his death that finding the fragments of Qi Jing could save the Three Realms, and left clues to the desert of the Western Region.
Yun Xi left the sect with her master's relics, and met Feng Li, the young master of the Fox clan, on the way, and the two traveled west together. At this time, Yunxi was weak and ignorant about love. Faced with the pursuit of the devil, she often fell into trouble. In the process of searching for the mirror, Yun Xi met a fateful person with a status and cultivation level far higher than hers. This relationship became the driving force for her growth. But as her relationship heats up, Yunxi faces a dilemma: whether to stay with her lover forever, or to shoulder the heavy responsibility of protecting the human world.
At the same time, Yunxi misunderstood that her master had sacrificed her life, and only found out the truth during the subsequent adventures. This lie and misunderstanding made her struggle with pain in her heart. As the Demon Realm presses closer and closer, and the crisis of the Three Realms approaches, Yun Xi must find the fragments of the Qi Mirror within a limited time. The confrontation between the good and evil camps caused her to encounter many crises of trust along the way, and her relationship continued to deteriorate.