Chen Tian was just an ordinary worker until the elevator stopped at the non-existent 37th floor late at night. From then on, he discovered that convenience stores, mirrors, offices, underground passages, every daily corner had hidden gaps with strange rules. He is the Gap Toucher - wherever he goes, the sleeping weirdness will wake up. Every time I survived, I relied not on force, but on my brain to decipher the rules. When the countdown reaches the end, the ancient order hidden under the city emerges - he must find the answer before the gap is fully opened. Everyday routines are rules, and rules are puzzles. Fear is the beginning of the story.