In the first life, he was the master and she was the disciple. Yun Tianqing rescued Mu Jiu, a wolf girl in Mu Xi Mountain, and brought her back to Jumang Mountain. He accepted her as his apprentice against all odds. Later, it was discovered that Mu Jiu had a natural spiritual bone that could communicate with yin and yang and open the gate to the demon realm. People in the immortal world wanted to kill her. To save her life, Yun Tianqing sealed Mu Jiu in the Yanhua Cave and burned her with heavenly fire in an attempt to destroy her spiritual bones. Ten years later, Mu Jiu broke the seal and came out, only to find that his master was getting married...
In the second life, he is a fairy and she is a demon. The Red Fox and Snow Fox clans of the Qingqiu Kingdom competed for the throne. The Snow Fox failed and was demoted to the white fox and became a demon for generations. Mu Jiu's soul entered the body of the dying Princess Xue Hu and revived her body. Ah Jiu woke up with all her memory lost and did not understand changes. She was captured by a hunter, but was unexpectedly rescued by Yun Tianqing and became his spiritual pet...
In the third life, he was an immortal and she was a mortal, Yun Tianqing went crazy, and Mu Jiu, who had returned to his soul, turned back into a mortal with the memories of his two lives, and returned to Muxi Mountain alone. Immortals and mortals never interacted again until the demon tribe rebelled...