In order to save his sick mother, Shen Heng married into the prince's mansion on behalf of a rich girl. On the wedding night, her identity was exposed by the sick and frail prince. She traded her medical skills for her life, and struggled to gain a foothold amidst the cold eyes and calculations. She found out that the prince was chronically poisoned and risked her life to pursue the murderer; but he already knew the poisoner. When the original owner came back to take back everything, the prince held her hand tightly: I married someone who was happy, not someone with the Gu family name.