Before time travel, he was a modern ordinary office worker (understanding basic history and simple fighting skills). After time travel, he became an ordinary infantryman in the frontier army of the Song Dynasty. He had a tough character, attached great importance to friendship, and had a bottom line. He was timid in the beginning and struggled to survive. After obtaining the system, he gradually grew into a strategic, responsible, and peerless general capable of commanding troops. His goal changed from "survival" to "strengthening the army, enriching the country, and conquering the world." He was not pedantic, and made good use of modern thinking combined with ancient battlefield rules.
