Lin Xiao, who was born as a general, was burdened with the injustice of the Weiyuan Marquis Mansion. He started from the northern battlefield, using the Jingbian Army as his blade, and emerged in the Battle of Pingchuan. In the confrontation with the Mongolian tribes, he broke out of the limitations of "ending war with war" and used mutual trade to maintain border peace. He formed a life-and-death friendship with the medical girl Su Qingwan and the man in black Ye Wuying. From Yanmen Pass to the capital, from the battlefield in Liaodong to the intrigues of the court, they dismantled the Wei Party's conspiracy and the Donglin Party's game. In the Liaodong crisis after Emperor Tianqi ascended the throne, they defeated Hou Jin's offensive with 300 elite troops and exposed the court's collusion conspiracy.