When Shen Wantang was pushed into the bridal sedan by her stepmother, tears still clung beneath her veil. She was taking her elder stepsister's place as the bride of the Marquis of Zhenbei, a man rumored to kill without batting an eye. Her life was as good as over. On their wedding night, he lifted her veil and held a blade to her throat. Trembling, she said, “My lord, I know who betrayed you three years ago.” The blade did not fall. She survived, but life was far from easy. There were spies in the manor, sworn enemies at court, and a ruthless killer lying beside her who could turn on her at any moment. In her previous life, she had spent every day cowering. This time, she did not want to die again. The problem was, every secret she knew could get someone killed.