

On New Year's Eve, when every home is lit with reunion lights, a skyscraper in the city center hides a deadly secret. A so-called "Year-End Layoff" turns into a brutal Twelve Zodiac survival game. Finley Kirk, a low-level office worker, is only trying to earn money for his mother's treatment when he is trapped inside. There are no laws, only survival. No colleagues, only prey.Former bosses become monsters, and coworkers turn against each other as the corporate world collapses into chaos.

In this end-world where everyone worships heroes and shuns the beasts, I was thrown out of the shelter like a piece of trash for not being a hero, only to unexpectedly gain the power to decide whether the beasts live or die. So I opened a supply station outside the walls, and by selling the crystal cores found inside the beasts, I mastered the apocalypse and climbed to the peak of life. So what if they're heroes? Even S ranks work for me now!