Modern military expert Zhao Tiezhu's soul passed through the Beishuo border army and became a pawn at the bottom. He relied on single-handedly improving ordnance and deceitful tactics to kill from a cook to a centurion and a commander of thousands. Qin Shuang, a female scout who disguises herself as a man, confronts him tit for tat, but is always by his side at the critical moment of life and death. The barbarian prince Helianye regarded him as a powerful enemy, while the supervisor Pei Eunuch had hidden murderous intentions. Zhao Tiezhu walked step by step between the battlefield and the court, but found that the truth about his time travel was actually related to an abandoned armory in Beishuo. Can he be granted the title of marquis and general in troubled times and protect this land on the frontier?
