Two years after the world fell silent, survival has become routine. In the ruins of a forgotten city, Hyunjin keeps count of the days. Felix keeps the others alive with laughter. Together, they've built something close to peace - a fragile base of warmth in a cold, dying world. But when a routine supply run goes wrong, the cracks begin to show. Whispers of a cure resurface. Hope takes root in a place it shouldn't. And in the space between fear and devotion, love becomes the most dangerous thing left alive.