Qin Zheng, an ordinary working boy, died suddenly on an assembly line. When he woke up, he found that he had traveled to the Qin Dynasty, accidentally ate Qin Shihuang's elixir of immortality, and became immortal ever since.
Qin Zheng lived from the Qin Dynasty to modern times. He experienced the conflict between Chu and Han, the struggle for supremacy of the Three Kingdoms, and the rule of Zhenguan. He luckily escaped the massacre of the Hongwu Dynasty and finally became himself again.