Zhao Yan, a graduate student in the Department of Modern History, traveled through time and became a branch of the clan of the Southern Song Dynasty. When the Southern Song Dynasty was in turmoil, he relied on modern knowledge and historical predictions to go through the stages of "survival from desperate situations - reform and strengthening the foundation - restoration of soil and power - ocean expansion", promoting the development of the Southern Song Dynasty from a peaceful regime to a dual hegemony on land and sea, and reconstructing the pattern of Chinese civilization.
