He is the sharpest blade of heaven, specializing in cutting through the seven emotions and six desires.
She is the most unruly voice in Jiutian, and she wants to mess with his thousand-year iron rule.
Zhanxin, the most special existence in the heaven. He controls the heart-cutting blade, cuts off the threads of love and delusions, and maintains the movement of the ruthless heaven. The heart that has been frozen for thousands of years has never been disturbed.
Until that day, he tied up a daring little fairy.
The nine-melody fairy Lingyin, who is in charge of heavenly music, laughed at him: "You are so ignorant, you may become an idiot."
He responded with indifference, but for some unknown reason, "coincidences" with her continued from then on.
Yue Lao stroked the red thread that had been broken for thousands of years and chuckled: "Zhan Xin, have you forgotten? You are not born heartless."
When the "Mortal Miasma" wreaked havoc on the three realms, and when the dust-laden emotions of the fairies awakened one after another, Zhan Xin was ordered to conduct a thorough investigation, only to find that all the clues pointed to her - the fairy who made his heartstrings tremble for the first time.
A deeper secret emerges: the so-called ruthless nature of heaven is actually the shackles that imprison the hearts of all living beings; and the past he forgot contains the truth that subverts everything.
Is it to kill her and use the law of heaven?
Or for her, to attack this ruthless way of heaven?
When the frozen memory begins to melt, when the heart-cutting blade is aimed at the order it once guarded——
This time, where will the Heart-Severing Blade point?
