Modern cities are prosperous and orderly on the surface, but they actually hide a "destiny rating system" - a super city called "Ladder City" classifies everyone into levels S to F according to their potential. Resources, power, and even the right to survive are all determined by the rating. The people at the bottom are struggling like ants, but the protagonist Chen Mo, a delivery boy who is judged by the system to be an F-level "wasted life", accidentally triggers the ancient "fate-defying chip" during a meal delivery and gains the ability to rewrite his destiny!
