Mu Wanqing is forced by her family to marry an heir of a wealthy family who is disabled. At the wedding, she uses allergy medication to break out in rashes, framing her stepmother and stepsister. To save the alliance, her father urgently seeks a doctor, the stepmother and stepsister are punished, and the wedding is postponed. When Mu Wanqing visits them in prison, her stepmother claims innocence and accuses the Ji family patriarch of being the murderer of her mother. Mu Wanqing resolutely decides to marry into the Ji family after all to avenge her mother.