The Song family was wrongfully accused, and the entire household was thrown into prison. To save her family, she married the eunuch holding supreme power over the court, Xie Yan. Not long after their newlywed days, an imperial decree arrived: her father was sentenced to be beheaded, and her mother and young brother were exiled. She knelt and begged for three days, only to receive a single sentence from him: the blood debt of the tragic deaths of the entire Xie family must be paid in blood. It turned out that he married her solely for revenge. After the marriage, she was trapped in a deep courtyard, gritting her teeth and struggling to hold on by relying on a five-year pact with her mother. But a secret hidden for many years was slowly rising to the surface.