In the crumbling Great Yin Dynasty, Xie Zhaozhao, born to wealth and privilege, is forced to marry the foolish Crown Prince. But she soon discovers that the imperial house is nothing but a hollow shell, while a treacherous chancellor controls the court through the young ruler and the realm teeters on the brink of collapse. She tears off her red wedding veil and, under the name of Crown Princess, takes command of the army and gathers loyal fighters. Amid mountains of corpses and seas of blood, she turns powerful clans to her side and gives aid to refugees, setting the tottering dynasty ablaze like a phoenix rising from the ashes. With a world in turmoil as her forge, she carves a bloodstained path to supremacy through both ruthless force and benevolent rule. Yet amid the whirlpool of political intrigue, she enters a heart-pounding battle of wits with Xiao Jingheng, the Regent who hides his sharp edge. He is both her most dangerous rival and the bond fate has decreed for her. As court politics intertwine with the martial world, and love and hate collide with ambition, this legendary tale of a marriage that turns to love will ultimately unfold into a glorious age beneath the phoenix's rule over all nine heavens.