Xie Linyuan, an orthodox swordsman, was ordered to investigate the case, but he ran into Mo Ci, a wandering fortune teller who could activate forbidden spiritual veins.
Corpses with severed spiritual veins implicated the Hanshan murder case that was covered up twenty years ago - Xie Linyuan's family was the perpetrators, and Mo Ci was the only survivor.
One believes that "the rules of the family are the way of heaven", but repeatedly breaks the rules in front of the truth; the other is denounced as an "alien", but insists on using the power of taboos to protect his spiritual veins.
When the Xie family's sword pointed at Mo Ci, and when the conspiracy of the Erosion Pavilion enveloped the three realms, Xie Linyuan understood: the so-called good and evil never lie in blood and magic, but in the human heart.
"Do you believe me once?"
"Your sword has already turned towards me."
A broken sword protects one person, and half a jade pendant affects two lives. What they want to break is never the mystery of spiritual veins, but the black and white prejudice of this world.