The modern girl Ye Song accidentally traveled to the Northern Xia Dynasty and became the legitimate daughter of General Ye Zhong and the concubine of Ning Wang Su Chen. Ye Song, with the soul of a modern woman, was determined to resist feudal shackles. She regained her freedom, accepted her loyal maid Pei Qing as her adopted sister, and faced the palace's machinations and court frame-ups. During an encounter in the theater, she met Su Ruoqing, a gentle young man, and the two gradually fell in love. However, Su Chen's jealousy turned into hatred, causing him to be seriously injured. The emperor intervened, Su Chen was punished, and Nan Shu was brought to justice. After experiencing life and death and conspiracy, Ye Song gradually understood his mission and emotions, and wrote his own legend in the turmoil of the dynasty.