In the middle years of the Dayong dynasty, the empire is beset by internal strife and external threats. After the late emperor dies suddenly, his legitimate daughter, Xiao Jingyuan, is disguised as a man and installed as a puppet emperor. The imperial in-laws seize power, and the people are left in misery.
Shen Qingci, a penniless orphan from a humble family, disguises herself as a man and places first in all three imperial examinations, rising to the position of Grand Secretary. She seeks only to avenge old wrongs and clear her name, but soon stirs the whole court.
Barely arrived at court, she is ambushed. The Empress Dowager forces her way into the palace and issues an edict to depose the emperor. Both their lives hang by a thread.
She outwits a deadly trap; she secretly passes along a coded message. Sovereign and minister join forces.
They investigate corruption, quell border unrest, crush the imperial in-laws, and wipe out rebel factions. The two women stand shoulder to shoulder, navigating one perilous step after another.
When their identities are exposed and a palace coup erupts, she draws her sword to put down the rebellion, while the other publicly removes her crown and proclaims herself emperor.
As reforms take hold, regional princes rebel and remnants of the former dynasty finally emerge. She leads the troops to defeat the enemy; the other holds the realm steady.
After bloodshed and turmoil, spring returns to a flourishing empire. The empress and her female chancellor rule the realm together.