Inside a state-funded trauma processing facility known as the House of Light, pain is documented, categorized, and stabilized. When an intake officer disappears inside Room 7-B without explanation, the system responds not with alarms—but with accounting. A new internal ledger opens. Status: Pending Classification. As Director Haru Tanaka and his team search for answers, they discover something far more unsettling than a locked room mystery: The building is learning. And it does not forget open tabs.