Jia Xuhui was originally a modern military academy student. After his accidental death during an exercise, he traveled back to the Southern Song Dynasty and became the boyhood of the powerful minister Jia Sidao. He is familiar with the historical trend of the Southern Song Dynasty, knows that the Southern Song Dynasty is facing threats from the Jin Kingdom and Mongolia from outside, and is faced with the dilemma of corrupt courts and party strife within the country. He is determined to use his knowledge to change all this and prevent the Southern Song Dynasty from repeating the mistakes of history.
