Gu Mi'an, the legitimate daughter of the Prince of Mobei, willingly entered the capital as a hostage to protect her younger brother, but unexpectedly stepped into the center of the whirlpool of imperial power.
A glimpse under the fireworks when she was young made her form an indissoluble bond with the fifth prince Yu Mingye, whose pseudonym is "Arche". On the day of their reunion, he was a dark-hearted and forbearing contender for the throne, while she was the wise and courageous princess An Ding who protected her relatives like life. In the chess game of troubled times, the two went from testing each other to fighting side by side. They had a deep love for each other in the confrontation of power and tactics. They used their wedding as an ally to fight against their political enemies.
When the truth emerges, the former grudges join forces again. Faced with Yu Tingyu's palace coup and the secret obstruction of the court's traitors, they use their wits to break the situation and protect their country with iron and blood. From the heroic daughter of Mobei to the queen of the prosperous times, Gu Mi walked step by step, protecting her relatives and lovers amidst the light of swords and shadows. Finally, she joined hands with Yu Mingye to control the mountains and rivers and find peace for the rest of her life.
