Shen Yunhuan, an orphan girl from the south of the Yangtze River, ran away from her marriage and went to live with her uncle in Chang'an. However, she was plotted by her sister Shen Ruolan and was kidnapped by a wealthy businessman as her concubine. Fortunately, she was rescued by the treacherous and vicious prince regent Jun Yi'an. She thought she had found shelter, but unexpectedly Shen Ruolan colluded with foreign gangsters. Rumors spread, pushing her to the forefront. Princess Yanqian devised a clever plan to help her gain a foothold as a companion, but little did she know that she had a deep connection with the Qingfeng Sect - her mother, Lin Yuee, had exhausted her cultivation to seal the nine-tailed red fox, and the medical manuscripts she left behind contained shocking secrets.
Big brother Wen Yuan, who is crazy about the secrets, coveted the "secret book" and went down the mountain. He colluded with the desperate Shen Ruolan and designed to lure Shen Yunhuan into danger. At the critical moment of life and death, Shen Yunhuan was stabbed and blood spattered on the manuscript. The unsealed nine-tailed fox unexpectedly formed an imperial bond with her, granting her immortality, but also put her into the dilemma of "one person with two souls". Jun Yi'an realized that he was guarding with all his strength, while Wen Yuan and Shen Ruolan's conspiracy was still going on. A storm involving love, hate, good and evil, and fairies and monsters quietly swept through the city of Chang'an.
