Chen Mo traveled to the outskirts of Xinzheng, just when the Qin State was about to attack South Korea. He accidentally broke into the Korean military camp and was arrested as a spy. With his understanding of the internal factional struggles in South Korea, he escaped by chance and met a retainer of the Korean noble Han Fei. In order to save his life, Chen Mo presented an improved version of the "Tired Qin Policy" to the King of Han (which actually concealed loopholes that were beneficial to Qin). The King of Han suspected it and turned to the Qin envoy. On the way, he encountered Zhao assassins and Korean pursuers, and went through hardships to reach Xianyang. In Xianyang, by interpreting the historical fallacies in "Lu Shi Chun Qiu" compiled by Lu Buwei, he attracted the attention of Li Si, the court official. Li Si recommended him to meet Qin King Ying Zheng. With his accurate judgment of "predicting" Qin's victory in attacking Han, he gained Ying Zheng's initial trust and was appointed Lang Guan.
Key plots: the first experience of time travel and the crisis of survival, witnessing the decline of Han Dynasty on the eve of the death of Han in the streets of Xinzheng, the ideological collision with Han Fei's disciples, the thrilling journey to defect to Qin, the advice given by the emperor in Xianyang Palace, and the first confrontation and cooperation with Li Si.
Historical nodes are integrated: Qin destroyed Han (230 BC), the court structure after Lu Buwei dismissed the prime minister, and Ying Zheng's policy of recruiting talents from the six countries in Shandong.