Jiang Wandi, the legitimate eldest daughter of the Jiang family, is forced to marry in place of her sister to Qiao Shenzhi, a young marshal who is crippled and her childhood sweetheart. Unbeknownst to him, he has already fallen deeply in love with her, but mistakenly believes her sister is the one who saved his life. Jiang Wandi endures his cold treatment and even helps him win her sister's favor. When the truth emerges that her stepmother poisoned her biological mother and Qiao Shenzhi unknowingly became an accomplice, her heart is completely shattered. She fakes her death to escape, changes her name to Cheng Yun, reunites with her marshal father, and travels to London with Shen Yuchi, a fellow doctor, where they support each other and pursue their studies. After returning home, she opens a hospital and rises to become a queen in her own right. Qiao Shenzhi is consumed by regret and humbly begs her to reconcile. But can a broken relationship ever be mended?