Li Changqing, a modern young man, accidentally touched an ancient bronze mirror during an archaeological excavation. In a trance, he seemed to see a woman wearing a Tang suit. When he woke up, he was already in the early years of the Tang Dynasty, when smallpox was raging and the people were in dire straits.
Li Changqing brought his preliminary knowledge of modern medicine to solve the smallpox crisis, met the famous doctor Sun Simiao, and was accepted as his disciple.
Later, he was appreciated by Li Shimin and became an official in the court. He attacked the Turks in the north and Goryeo in the east, conquering the world.
Time passed by, and the relatives around him gradually grew old. Li Changqing was filled with emotion: "Everyone envies immortality, but immortality is not torture."
