In the Great Yin Dynasty, the winds and clouds gather over Tianxuan Mountain.
After surviving the demonic tide in the northern frontier and experiencing a dramatic increase in cultivation, the protagonist is accused of practicing demonic arts and dragged onto the Immortal-Slaying Platform. Faced with accusations from his master, Perfected Ziyang, and the others, he refuses to confess. The truth is that he had once presented a “dragon bone” vital to the dynasty's fortune, only for Perfected Ziyang to use it in a blood sacrifice of three thousand disciples, testing its power to devour demons and turn their strength to his own. Yun Shu became the test subject.
With the truth exposed, Perfected Ziyang tries to silence him. At the critical moment, he awakens a mysterious power and breaks free of his restraints. He declares that this power exists to protect, and is no demonic art. Then he leaps from the Immortal-Slaying Platform, determined to seek justice.
From then on, he takes on another identity and embarks on a path to turn the tables. Can he uncover the conspiracy, clear his fellow disciples' names, and change the fate of the dynasty?