Su Chen, a servant disciple of the Qingyun Sect born with a useless spiritual root, has endured years of torment, bullying, and harassment from his fellow disciples. On the brink of death, he unexpectedly activates the Myriad Worlds Comeback System and unlocks an extraordinary devouring talent, allowing him to absorb demonic beasts, spirit herbs, and even the spiritual energy of formations to advance his cultivation. After astonishing everyone in the sect's assessment, Su Chen becomes the secret object of suspicion and investigation by the elders. By chance, he discovers that the sect's master is an impostor who has possessed another's body, and that a massive formation hidden within the sect sacrifices living beings to operate, with thousands of disciples serving as living furnaces. Determined to expose this shocking conspiracy, Su Chen finds himself trapped in a desperate situation. He risks devouring the energy of the underground formation's core to break through to Foundation Establishment, personally slays the false sect master, and causes the sect's grand formation to collapse.