The courageous and brave Chief of the King's Guard, Choi Yeon, sets out to find a miracle healer who can cure any disease, and he finds himself in the present day. Choi Yeon must find the healer at any cost and save the princess, whose life is crucial for the peace and prosperity of the country and its people. Choi Yeon believes that the miracle healer will be a beautiful and talented plastic surgeon named Yoo Eun-soo, who will embark on a journey to the distant past.