Lost in the Late Song Dynasty

A recently graduated student traveled back in time to the late Northern Song Dynasty, experienced banditry and war, had no skills, but dreamed of changing the world. Helping Yue Fei when he was in trouble was to lay the foundation for success; becoming brothers with Jin Wushu, taking the opportunity to rob his prisoner and flirting with his sister; you are Genghis Khan, I will kill you first... Destroy Qin Hui, overthrow Zhao Gou, defeat Dajin, and intimidate the grassland. Zhao Gou: Please let me go. Qin Hui: The south of the Yangtze River belongs to you, and the north of the Yangtze River belongs to me. How about that? Yue Fei, Wu Jie, Zhang Xian: You are my brothers. Jin Wushu: I call you brother, you call me sister. Temujin: There are such talents among the Han people who will never set foot in the Song Dynasty.