A graduate student in the history of the Southern Song Dynasty, who wrote war casualties in his thesis form, traveled back to the Duanping period and grew from a survivor who just wanted to go home to a commander-in-chief; he relied on modern knowledge to continuously change history, but in his later years he discovered that his victory also forced the enemy to complete a faster transformation, and in the end he could only choose his position in the irreversible fate of the country.
