Also known as: Traveling through the late Ming Dynasty, starting with Li Zicheng as his younger brother. In the second year of Chongzhen, the wind and sand in northern Shaanxi were like knives. Lu Zhao, a veterinarian at the Agricultural University, opened his eyes and became the lowest-level postman at the border in the late Ming Dynasty. The post horse was poisoned, his boss framed him, and the county magistrate silenced him. With a hoof knife and half of the Book of Horses, he fought his way out of the stable haystack. He accepted Li Zicheng as his younger brother, secretly communicated with Yi Cheng's wife, and turned twenty army horses into life-changing bargaining chips. Is this world so rotten? Then start with Ma Zheng and turn his mother's world upside down!