Tang Ning unexpectedly transmigrates into the body of the daughter of Tang Tingwei, the Great General of the Border Guard of the Great Hua Kingdom. The new emperor of Great Hua uses an arranged marriage as an excuse, intending to bring Tang Tingwei's daughter into the imperial city and keep her under control. The Tengzhe people plot an assassination, but with the help of Nalal Qinghong, the top expert of the Liehuo Kingdom, she escapes with her life. She then becomes Nalal Qinghong's disciple and learns the secret art, the Heaven-Reaching Formula. After arriving in the imperial city, she opens the Yan Ruocheng Rouge Shop, forms a bond with Zhao Huaguang, and begins her journey to save the disgraced prince.