I Became the Villain's Cheat System

Supreme cultivator Jiutian awakens after ten thousand years—only to discover he's now a soul trapped in a ring, bound to the villain he once defeated. In every story, the wise mentor in the ring belongs to the hero, right? So why is he stuck guiding the antagonist instead? As the heavens flip the script, Jiutian must navigate a world where the villain might just be the true protagonist, and destiny itself is up for grabs.