Modern special instructor Li Ding passed through the frontier fortress and took over a village of remnant soldiers that was on the verge of collapse. Outside, there were prairie cavalry plundering, while inside there were nobles and merchants who were constraining them. He led the Orion Zhao Tieliang to renovate the city defense, conquered the exiled medical girl Cui Suwen to establish an intelligence network, and instigated the nomadic prince Huyanchna to form a cavalry. But the scholar Zhou Boyuan secretly colluded with the remnants of the old dynasty, and Shen Sanniang tightened his grip on the material lifeline. Li Dingbian fought his way through internal and external attacks. From separatist rule to domination of the world, every step was a battle between humanity and iron-bloodedness.