Zhang Miao is a modern third-rate Taoist priest with a sharp tongue and exaggerated acting skills. He is good at observing people's emotions and packaging and marketing. He knows little about Taoist classics and relies entirely on deception to make a living. Due to an extremely nonsensical incident, he stepped on a banana peel and fell into a Taoist incense burner and fainted. When he woke up, he found himself in an alchemy room full of medicinal stones in Xianyang during the Qin Dynasty, and became "Qing Xuanzi". After the "True Alchemy" poured into his body, he saw the real Qin Empire.