As the countdown to their contractual marriage begins, the loyal and domineering CEO Nie Lingfeng disguises himself as a bodyguard to protect his cherished wife, Gu Yashan. Staying by her side, he finds himself caught between duty and desire, nearly losing his heart in the process.
While escorting military funds, Qiao Jiu is ambushed by agents of the Second Prince Zhou Mubai and Dai Shuang. To save him, Jiang Yefeng marries Qiao Jiu, but they are soon framed and imprisoned. Using their wits, they escape and begin to uncover the truth. During their search, Jiang Yefeng is attacked by Zhou Mubai while defending Qiao Jiu. Returning to their lives, Jiang realizes his mistakes and proposes to Qiao Jiu, hoping for a fresh start together.
Li Xifeng, who enters the palace to avenge her father, is unexpectedly chosen to be sent to the Turkic as a princess for a political marriage, in order to gather military intelligence. Li Xifeng initially plans to use the power of Khan Jilie to seek revenge, but she discovers that Jilie's motive for seeking marriage is to gain leverage over the Emperor of Tang Dynasty, who holds her elder brother as a hostage. Behind Jilie's seemingly pleasing gestures, he intends to exploit her princess identity for espionage, but he discovers that Li Xifeng is not the real princess. As their mutual resentment turns into love, they go through numerous obstacles and eventually find the happiness they sought.