Yan Qing, a genius disciple of Changheng Sect, falls to demonic cultivation and is surrounded and killed by the eight great sects. Only after her death does she learn that her almost-dao partner, Ji Ran, planted a demonic seed in her. Ji Ran has a strange System hidden inside him. It was the System that made him plant the seed in her, intending to kill her and absorb her fortune after her death. Once Yan Qing learns the truth, she vows to tear the System to pieces. But she is only a consciousness, and her overwhelming resentment makes her unstable. Yan Qing is sucked into a vortex, and when she wakes, she finds herself in a void.
There is another consciousness in the void: the origin of the world. It tells Yan Qing that things like Systems are devouring the fortune of the chosen ones across the three thousand worlds. If the Systems are not stopped, the world's consciousness will disappear. It asks Yan Qing to become a Cleaner and travel to the three thousand worlds to wipe out the Systems.
Yan Qing is unwilling, but when she sees Ji Ran approaching her younger brother again, she agrees. She then enters a mid-level world to begin her cleanup mission.
Faced with Systems that have countless functions, Yan Qing has nothing at all. But she discovers that whenever she gets close to a System, it loses its connection to its Host. With that in mind, Yan Qing decides to cultivate properly.
World One: The Cultivator's Favorability System
World Two: The Era-Era Woman's Study System
World Three: The Palace Schemer's Harem Intrigue System
World Four: The Apocalypse Woman's Villainess System
World Five: The Woman Who Transmigrated into a Book's Capture System
Yan Qing lets no System escape. The chosen ones must never have their fortune devoured, and every System must be torn apart by hand!
