Students trapped in horror Gaokao dungeons and examination loops. Failed examinee Su Yan awakens a design system, rewriting exam hall rules. He disguises as a test-taker to clear copies, suppress ghosts, rescue students, foiling horror lords' plots. When the primordial horror god merges exam halls to devour examinees, Su Yan unlocks creation authority, builds arena, rewrites rules, and seals the god. He rises to top designer, ruling exam halls, breaking the infinite loop.