In a realm where immortals and demons wage endless war, a forbidden love is born. Mo Yexuan, the cold and feared ruler of demons, crosses paths with Ling Xiuyun, the gentle daughter of a fallen Heavenly Emperor. Though raised as enemies, their hearts defy the boundaries of heaven and earth.
On the eve of a great battle, they make a sacred vow under the Red Thread of Fate: no matter how many lifetimes it takes, they will find each other again. But tragedy strikes—Xiuyun falls in battle, and their bond is severed.
Reborn in the mortal world as a princess with no memory of her past, Xiuyun lives a life of luxury and duty, unaware of the vow that binds her. When Mo Yexuan descends into the human realm, weakened but unyielding, he recognizes her immediately. To her, he is a stranger cloaked in shadows. To him, she is the promise he has waited centuries to fulfill.
As forgotten memories stir and the Red Thread pulls them closer, love blooms once more amidst betrayal, destiny, and war. But heaven and demons will not forgive what fate has bound. To protect their oath, Xiuyun and Yexuan must fight not only for each other—but against the very heavens themselves.
Theme:
Even if heaven and earth collapse, even if memories are lost, the Red Thread will always lead us back to each other.