Modern-day doctor Su Wanqing transmigrates to ancient times, where she becomes a merchant's daughter and marries Shen Yuxuan. From the start of their marriage, she faces her mother-in-law's torment, her cousin Liu Ruyan's provocations, and her husband's coldness. Using her modern medical knowledge, Su Wanqing deftly navigates the household's schemes, only to gradually uncover the conspiracies of the three members of the Shen family: from her cousin's fake pregnancy to force the issue to a poisoned-wine plot at a birthday banquet. In the end, she is falsely accused of adultery and nearly buried alive. In this desperate situation, Su Wanqing saves herself with her medical skills and begins her path of revenge. Not only does she clear her name, she also shines in the medical field and becomes a revered “Divine Doctor.” The story spans three lifetimes of reincarnation. From revenge at the beginning to forgiveness at the end, Su Wanqing transforms from a goddess of vengeance into an enduring legend. She establishes a medical system in ancient times that blends the old and the new, becoming a cultural bridge between eras. At last, she passes away peacefully with a state funeral, leaving behind an immortal legend.