Emperor Qin ending the Warring States period and unified the country. By using his mysterious technology combing human and machine, people became immortal but at the same time, fully controlled by his dictatorship. After 200 years, a robot find that he has the memory from a high priest who lived during the Warring States period. In order to uncover the truth of his soul and the secret of Qin’s technology, he has to find the train to Miluo River, where his “past life” has drowned himself.