The heroine was once the lowliest illegitimate daughter of the Prime Minister's residence. At the brink of despair, she awakens the only legitimate bloodline of the Great Yin Empress. By chance, she forms an alliance with Xie Huan, a hostage prince from an enemy kingdom. Together, they carefully maneuver through the imperial capital. Amid a thousand years of oppression imposed on women by male-dominated society and imperial power, he awakens the power of the Nine-Winged Mystic Bird. Backed by his iron cavalry, he protects her as she breaks through every obstacle and advances. From an abandoned daughter of the Prime Minister's household to an Empress, and from a hostage prince to the Empress's official consort, the two stand side by side in the darkness and establish a peaceful golden age where women can find their place and shine alongside men.