Liu Mingyi, the daughter of a salt merchant, spent six years running the Zhenguo Palace in order. However, on the day of her husband Xiao Heng's triumphant return, she was asked to give way to the "wife in need" Lin, and was stripped of her royal robes. Heartbroken, she burned her seal and cut off her confession, stirred up trouble in the mansion with a piece of account book, and even handed over her divorce letter. When Xiao Heng scorned her for having no one to marry, Pei Yan, the eldest son of Prince Jingnan, asked for marriage according to the decree, promising to treat her as a concubine and not to accept concubines. Liu Mingyi reached the sky in one step and accepted the congratulations of hundreds of officials under the phoenix crown and garnet. However, her former husband Xiao Heng had to supervise the ceremony at her wedding ceremony, kneeling before her and watching her move towards a more noble and fulfilling life. From then on, Liu Mingyi, as the imperial concubine, used her "canary wisdom" that was proficient in calculation and insight into people's hearts in the whirlpool of imperial power, aristocratic families and frontier forces to assist Pei Yan, and finally completely crushed Xiao Heng's official career and dignity, completing a gorgeous counterattack from an abandoned wife in the inner house to a powerful woman in the world.