Chu Feng, a modern senior Chinese medicine doctor, travels through the fictional Yong Dynasty and discovers that a man who hanged himself has the same appearance as himself, so he fakes his identity.
Unexpectedly, the person he pretended to be was the deposed former prince. The emperor is critically ill, and the blood from the deposed prince's heart is to be used as medicine. The road ahead is a dead end.
Fortunately, he found that the medical skills of this generation were very backward, so he decided to use his medical skills to cure the emperor and break the deadlock.
When he arrived in the capital, he discovered that everything was different from what he imagined: not only was he humiliated by the snobbish former crown princess's family, but he was also unable to gain the trust of the imperial doctor to allow him to treat the emperor; the second prince and others used various reasons to kill him, and his fakeness began to show its flaws, arousing suspicion.
He must eliminate doubts, go with the flow, defeat the odds, and survive step by step under a false identity in the undercurrent of the court.
Xu Jiayin went in, and Wang Shi went home to have children full time.