Lin Yuan, a modern young man, accidentally traveled to the Qin Dynasty. He had no fantasy powers or system blessings. He only had a brain of modern knowledge and plunged headlong into that imperial era made of iron and blood. When he first arrived in Xianyang, he almost became a prisoner because his speech and behavior were different from ordinary people. In order to survive in this strange and harsh environment, Lin Yuan had to rely on his wisdom and courage to deal with the nobles and the common people. From helping people improve farm tools to getting involved in the undercurrent of the court, he struggled in the torrent of history. He witnessed the strictness of Qin's laws, witnessed the suffering of the people at the bottom, and also experienced the bloodshed and cruelty behind the rise of the empire. Can Lin Yuan stand firm in this changing era, and can he write his own legend without changing the direction of history?