She is the Xiongnu princess Wanyan Jiuge, because her brother killed her father and usurped the throne, fled to the Central Plains, and joined the Zhao army after disguising herself as a man. She is Xia Ling, the daughter of a wealthy businessman, who was born with a bad fate, and she didn't want to drag down her family, so she decided to let go of the world and forget about her family. Wanyan Jiuge was attacked on the battlefield and was replaced by Xia Ling, who crossed over, and mixed in the Seven Kingdoms in the troubled times, relying on the martial arts and modern experience of the Huns to climb from a small soldier to a general step by step. With the recovery of the memory of the original princess and the visual impact brought to her by the troubled times, she used both vertically and horizontally, with the purpose of surrendering the army without a fight, strengthening the Huns, inspiring the Seven Kingdoms, achieving a balance between China and foreign countries, and becoming the co-master of the world. However, when Jiuge was dying, he found that everything was just a virtual realm, and the successful test results of Guiguzi indicated that the real crossing was about to begin, and no one could predict what the outcome would be......