Shen Jinglan, the Great Xia dynasty's female god of war, has been married to Imperial Preceptor Xie Xuanji for five years, yet they have never consummated their marriage because he has divined ninety-eight consecutive inauspicious fortunes. She discovers that, the ninety-ninth time, he personally turned an auspicious fortune into an inauspicious one—all because he wanted to be with her junior martial sister, Su Qianyue, who resembles her. Five years of fighting and bleeding on the border have brought her nothing but his infidelity and deceit. Resolutely, she petitions the emperor for a divorce and returns to guard the frontier. When the Seventh Prince takes a sword blow for her, she ventures alone into the snowy mountains to gather medicinal herbs. The Imperial Preceptor comes to his senses and risks his life to save her, only to be crushed by her words: 'Never see me again, in life or death.' In the end, he shaves his head and becomes a monk, while she stands shoulder to shoulder with the man who truly loves her to defend the nation's borders.