Synopsis：Pharmaceutical CEO An Xiaohe died of overwork and traveled through time to become a palace maid who was persecuted by eunuchs. She discovered that the prince, Lu Lincheng, looked exactly like her deceased husband. It turned out that he had also traveled through time, but due to an agreement with Heaven, he could not take the initiative to reveal his identity. An Xiaohe used modern medical skills and technology to counterattack from palace maid to crown prince, defeating eunuchs, traitors, and regents, and even used artillery to repel the Beidi army at the border. Lu Lincheng always guarded him silently, and was forced to admit his identity until the critical moment of life and death. The two went through many tests and eventually became a generation of emperors and empresses.