Lu Mingyuan, a doctor of history, traveled through time and became a beggar in the Tang Dynasty. He had no system and no golden fingers. He only relied on modern knowledge to make soap, display his talents and research gunpowder, and counterattacked all the way to become the emperor's master. However, he was shocked to realize that the real prince who had been imprisoned for thirteen years and the false prince in the court were actually time travellers. The fate of the three people was entangled and would eventually rewrite the fate of the Tang Dynasty.
