During the Anyuan period of the Da'an Dynasty, the war in northern Xinjiang was not extinguished, and the power of the Southern Party was undercurrent. Zhang Jinyi, the concubine of Zhang Yuan, the Protector of Beiting, was treated harshly by his concubine since childhood due to his mother's collusion with the enemy. When he was appointed as the military translator, he hid in hiding, hiding half a bronze tiger talisman in an attempt to clear his biological mother's injustice. Shi Xiaoying, the legitimate daughter of the Shi family in the capital city, inherited her grandmother's orders and went north with the other half of the tiger talisman, ostensibly to celebrate her birthday, but actually to investigate an old case of injustice against the family ten years ago.
The two of them met for the first time on a snowy night in Beiting. One was an aggrieved and humble general from the side court, and the other was a noble lady from an aristocratic family who kept secrets. Because the tiger matched the jade and the military ration case was implicated, they were forced to explore the truth together. Zhang Jinyi gradually reveals his talents by offering advice to defeat the Turks and expose the evil in the government; Shi Xiaoying reveals her business strategy and courage by clearing up the fog of business accounts and being pursued by the Anti-Southern Party. When An Hongzhi, the fifth prince of the dynasty, used Beiting to support Zhang Yuan with troops, Jin Yi protected his father from prison, and Xiaoying risked her life and ran around, finally turning Sheng Ting around with a secret letter.
When they arrived in Beijing, Jin Yi joined the court and interacted with An Hongren and other princes; Xiaoying took charge of the business network and rectified the name of the Shi family. Across the mountains and seas between the north and the south, the two men uncovered the shady story of the Southern Party's corruption and the feud between princes. Until Emperor Anyuan died and the new emperor succeeded to the throne, the war broke out in Beiting again. Jinyi used the alliance with Mongolia to break through the situation. Xiaoying transported grain and grass and communicated information, and stood side by side in the blood and fire.
The moon sets in the North Courtyard, Jin Yi disarms and guards the border, and Xiaoying unloads her merchants and returns to the fields. Where the tiger meets the jade, the grievances and blood of two generations are buried; in the wind and snow in the North Courtyard, there is the simplest annotation of the word family and country - the so-called prosperous age is just that some people are willing to exchange their bones and blood for the full moon in the world.