Substitute for the Princess, the Prince's Sweetheart

An accident caused Su Yan, a modern agent and military doctor, to travel to a dynasty that did not exist in history and became the foolish legitimate daughter of the Prime Minister's Mansion. As fate would have it, she met a handsome prince with sharp eyebrows and starry eyes, and a face like a crown jewel, just like an immortal. However, the prince lingered on his sick bed and was not favored in the royal family. They were strangers, but they were tied together by the emperor's marriage certificate. After the marriage, the prince cherished her deeply, loved her as before, and always protected her. The two went from being strangers to knowing each other, and finally stayed together for a lifetime, composing an affectionate story that spans time and space.