My God-Level System Can Rebuild Civilization in the Apocalypse!

After the world suddenly transforms into a deadly survival game, ordinary office worker Joo Joowon finds himself trapped inside his apartment complex during a midnight zombie outbreak. With nothing but a fire axe, a frightened stray cat, and a mysterious game system appearing before his eyes, Joo Joowon must learn how to survive in a world where humans grow stronger by hunting monsters. While others band together to fight for survival, Joo Joowon begins his journey alone. As the apocalypse spreads and civilization crumbles, he soon realizes that simply surviving is not enough. Guided by the mysterious system, Joo Joowon starts gathering survivors, constructing safe havens, and reclaiming a ruined world from endless waves of zombies. From a powerless office worker hiding inside a small apartment, Joo Joowon will rise step by step. In a world where humanity has been reduced to nothing... He will become the leader who guides mankind toward a new beginning.