When the sweet dew descended upon Dayao at birth, Xiao Zhaoyue, the empress's legitimate daughter, was judged by the national preceptor to be the true lucky star who would pacify the world, yet she had her identity swapped by her biological mother. Xiao Jiayi usurped her legitimate daughter destiny and became the lucky star revered by all people, while Xiao Zhaoyue, who possessed true destiny, was trapped in the cold palace for eighteen years and suffered endless torment. With peace and marriage in the northern border imminent, her close kin sacrificed her once more, sending her to a desolate and perilous place. Xiao Zhaoyue, possessing spine and backbone and strictly refusing to be manipulated by others, resolutely left the border with her only token and headed far to the northern frontier. Amidst troubled times and shifting chaos, she met the Northern Prince Helian Jin; probing one another and supporting each other, they broke the deadlock side by side in court political plots and border disputes, defying the odds to rewrite the destined fate.