The Spiritual Qi Revival Hasn’t Even Begun, and I’ve Already Got a Comeback System?

Li Ze had just turned eighteen when he received the Renegade Immortal System from the future. 【Thirty years after the spiritual qi revival, you are fifty-eight, an unremarkable nobody who spent three decades drifting through the world before joining a sect as a lowly outer disciple】 【Fortunately, after thirty years of waiting, your comeback System has finally arrived】 【Locating sect... The spiritual qi revival has just begun... No sect found... Error... Error... Sect located: Qingshan No. 1 High School】 “Wait, what sect?” 【Time-Limited Mission: Demons have invaded the human world, but you are the only one to discover them early. You must eliminate them before they cause any damage. Reward: Qi Condensation Pill】 【Demons... currently nonexistent... Defining them: demons are beings feared by most people. They need not be powerful, but they are evil and cunning】 “Where did these demons come from? Wait, cockroaches count too?” 【Time-Limited Mission: Capture the demonic sect's female spy. The vile demonic sect is trying to overthrow your century-old sect, so as a cultivator of the righteous path, you must expose her true identity on the spot. Reward: Marrow-Cleansing Pill】 【Demonic sect... currently nonexistent... Defining it: a demonic sect is an utterly evil cultivation sect】 “What female spy from a demonic sect? She's a transfer student at a private school!” The sect becomes “Qingshan No. 1 High School,” slaying demons becomes “cockroach extermination,” exposing spies becomes “harassing classmates,” seizing opportunities becomes “fighting for food in the cafeteria,” and coming first on the genius rankings becomes “coming first on the rule-breakers list.” The cultivation comeback System has unexpectedly turned into a heaven-defying System. Fortunately, when faced with a heaven-defying System, its Host, Li Ze, is just as heaven-defying.