In the vast world of Yunxu, Shen Wuyou, the genius of the Qingming Sword Sect, was framed by his junior sister Lu Yaoyao on the charge of "stealing the sect's treasure", and was stabbed in the heart by ten thousand swords at Jiuyou Duanhun Cliff. A ray of remnant soul fell into the cold abyss of the Nine Netherworld, but found the "Nine Tribulations Sutra" at the tomb of the demon king, and swore to the demon in his heart: "Now that I have entered the ruthless path, I will kill the mortal world three thousand feet." Three hundred years later, when the swordsman in white clothes and stained with blood returned to the world, he discovered that the conspiracy had actually affected the Nine Heavenly Palace. Holding the Heaven-Slaying Sword and stepping on the Seal of Reincarnation, Shen Wuyou looked down at all living beings on the Immortal Killing Platform: "This ruthless way, I will teach you today what true ruthlessness and righteousness are."
