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College student Li Qigen accidentally fell into the water and time-traveled into the body of Li Cheng, the eldest son of the Li family's salt industry. He also met his favorite heroine of the TV series "Joking Qianlong", Cheng Huaixiu, the leader of the salt gang. The truth behind the murder of Li's Salt Industry family was related to a collusion between officials and businessmen to smuggle illegal salt. In order to investigate the mastermind behind the scenes, Li Cheng and Cheng Huaixiu traveled to several places to conduct private investigations and uncover the layers of truth...