In late autumn and early winter, geese are crossing the Huaihe River. A thin young man came running on horseback with a long sword on his back. His eyes are like deep pools of cold water, and his heart is like flying leaves in September. Come from afar, to the other side of the country that unfolds in your dreams. He moved forward resolutely, regardless of the consequences. Dust was flying all the way, and the horse stepped on the hard ground, making a clicking sound.