Social animal Lin Yan accidentally fell into the infinite trial system of the "Ending Corridor" and became a novice player. Every dungeon here is a fatal trap: in the clock shop in the old city, the rules of "winding over time will erase consciousness" and "looking directly into the mirror will be eaten by the shadow" are like a hanging sword; in the foggy sanatorium, the poisonous suture monster nurse and the strange requirement of forced medication are pressing the bottom line of survival step by step.