The clock hasn't struck midnight, but the lights snap off. Darkness descends upon Sanzhong Experimental Middle School's late-night study session, thick and malevolent. Then, phones blaze to life, displaying not messages, but thirteen blood-red rules for survival.
Rule #1: Stay silent. A single scream, a whispered answer to a non-existent teacher, and you're erased – violently. One classmate learns this instantly, dissolving into gore before their terrified eyes.
Trapped in a nightmare version of their school, the students must navigate illogical, deadly regulations enforced by silent, gas-masked "Prefects" and reality-warping anomalies. Safe zones decay, time twists, reflections hunger, and every shadow could hide annihilation. Trust is a luxury, betrayal a constant threat.
Led by the surprisingly ruthless class president, a desperate group races against a phantom clock, seeking an escape hinted at in fragmented rules and cryptic clues. But the greatest horror might not be the monsters in the halls, but the truth behind the rules themselves... and the impossible choice awaiting anyone who survives until dawn.
Can you follow the rules when the rules want you dead? Dive into a relentless school horror where every minute counts, and breaking the code means gruesome deletion.