Li Xiao, a modern down-and-out college student, died suddenly while working overtime and traveled through time to become a border pawn of the Tang Dynasty. At first, he was greedy for life and afraid of death, and wanted to escape. Only when he was in a desperate situation did he decide to fight. He improved tactics based on modern knowledge, repeatedly made military exploits, and was appreciated by the emperor. He also fell in love with the princess and was granted the title of Duke, starting a legendary life in the Tang Dynasty.
