Lin Ming, a modern college graduate, transmigrates to Mount Kunlun in the Southern Song after a car accident and becomes Zhang Guolao’s disciple. After seven years of arduous cultivation, he descends the mountain and uses his Daoist arts and modern knowledge to become a favored guest of the wealthy Liu family in Liu Village. However, he discovers that he is in the final years of the Southern Song, with the Mongol army preparing to invade. With time running short, Lin Ming must use his knowledge of history from his previous life and his Daoist arts to build up his influence within the corrupt Southern Song court, all while concealing his true identity. As his influence grows, he faces suspicion from the court, the Mongol threat, and the risk of his identity being exposed. Caught between two suitors, Lin Ming must choose between his personal feelings and the great cause of saving his country. In the end, he must decide whether to change the course of history or submit to destiny, becoming a pivotal figure in the fate of the Southern Song.