When Gu Wanqing was young, her scummy father Gu Dahai and stepmother Liu Mei seized the Qin family's property and separated her from her mother Qin Xiu, sending her away to live in the countryside for ten years. Ten years later, Gu Wanqing has mastered exquisite medical skills and returns to the city by borrowing an engagement set early on by the Huo family. To take revenge on the Gu family, she enters into a contract marriage with Huo Changqing, the eldest legitimate son of the Huo family who was disabled in a car accident plotted by the second branch. Together, the two join forces to resist the multiple schemes from Madam Zhao and Huo Yaozu of the Huo family's second branch as well as Gu Dahai, Liu Mei, and Gu Qianqian of the Gu family. Gu Wanqing cures Huo Changqing's legs, and Huo Changqing helps Gu Wanqing rescue her mother and take back the Qin family's property. In the end, Gu Wanqing succeeds in her revenge, founds Qin Pharmaceuticals to become a business legend, and the two finally become a devoted couple.