He Wei Fang (Yang Zi), the daughter of a merchant in the Tang Dynasty, is compelled into an unsatisfying marriage with Liu Chang (Wei Zhe Ming) due to her frail health. However, their clashing personalities – his indecisiveness and her stubbornness – causes the marriage to deteriorate. Wei Fang crosses paths with Jiang Chang Yang (Li Xian), known for his selfishness that earned him the nickname of "the most corrupt official in Chang An." However, beneath this facade lies a shrewd, altruistic strategist dedicated to the welfare of the country. Chang Yang helps Wei Fang escape her marriage of convenience and establish her own peony cultivation business, combining Wei Fang's exceptional skill and Chang Yang's resourceful backing to build a successful enterprise... but will love blossom between them like the flowers do? This drama was adapted from the web novel of the same name by Yi Qian Chong.