Nanxia, a kingdom established in the land of plenty in the south of the Yangtze River. In 350 AD, an auspicious light shone in Southern Xia, and the prince Xia Cheng was born. Twenty years later, Xia Cheng took over the royal robes and took over the throne for the first time, just as the Xiongnu marched southward. Forced by the situation, Xia Cheng fled westward.
On the way to escape, Xia Cheng met Bu Liuhan Ji Zhen'er, a girl from the Xiongnu's declining royal family. Ji Zhen'er is only fifteen years old, but Xia Cheng has a secret affection for her. But when Xia Cheng saw the countless defeated armies of the Southern Xia king and the triumphant Hun army, he began to become cold and decisive when facing Ji Zhen'er. In the face of his family and country, he had to leave Ji Zhen'er, and began to secretly mobilize troops and deploy troops to capture the Xiongnu's lair in one fell swoop. However, he did not see Ji Zhen'er among the crowds of the defeated royal family of the Huns.
Ten years later, Xia Cheng, who had already settled in the south of the Yangtze River, accidentally walked into the most prosperous theater in the imperial capital. He saw a pipa girl covered in pink gauze, with blue eyes and a faint Hun accent. Memories from many years ago came to Xia Cheng's mind...