On quiet small-town streets, Ethan is known to all as The Town Fool. Odd and reclusive, he often lingers alone outside his home, his eyes filled with hidden wariness and fear. Brad and Megan notice his strange ways and try to uncover his secrets, only to be turned away at his door. His basement holds a mystery powerful enough to change the town’s fate — the first puzzle of the story. A sudden disaster engulfs the town, turning once lively streets into Frozen Hell. Everything is locked in ice under piercing cold, throwing residents into panic and chaos. Brad struggles through the frozen streets searching for survival, only to find Ethan fully prepared. His heavily fortified safe house stands in stark contrast to the desolate town, revealing foresight hidden behind his foolish persona. Desperate for the truth and a way to live, Brad reaches the safe house, blocked by an impenetrable blast door named The Unbreakable Door. Outside, Brad waits in tense confrontation; inside the surveillance room, Ethan watches coldly. A fierce battle of psychology and tactics unfolds. Why did Ethan prepare in advance? What lies behind the frozen catastrophe? What other secrets are hidden behind this unyielding door, waiting to be uncovered one by one?
