Five years have passed since the apocalypse turned the world into a desolate wasteland, where survival has become a solitary struggle and trust is a luxury few can afford. In this bleak landscape, San-a man hardened by loss and determined to remain alone-navigates the ruins with a heart closed off from the world. But when fate throws him together with Wooyoung, a vibrant and hopeful soul whose resilience and relentless optimism defy the darkness, San's self-imposed isolation begins to crack. Despite San's cold exterior and his vow to keep everyone at arm's length, Wooyoung's unwavering spirit and persistent kindness slowly draw him into a world he thought he had left behind. As they navigate the dangers of this broken world together, a bond begins to form, hinting at something deeper-a connection that might just be the light San has been searching for amidst the shadows. In the heart of desolation, could love be the key to rediscovering what it means to truly live?