On a Christmas morning that promised festivity, Hohyun awakens to a nightmare, his dormitory transformed into a fortress of horror. Isolated from the outside world, this new reality is overrun with zombies, their bodies a macabre display of blackened gore, insatiably hungering for human flesh. The surreal scene casts Hohyun into a fight for survival, far removed from any semblance of holiday cheer. In the midst of this chaos, Hohyun encounters Youngwon, a mysterious figure whose prowess with a fire axe against the undead is as intimidating as it is impressive. Youngwon, strangely familiar with Hohyun's identity, quickly becomes an indispensable ally in this twisted battle for life. Despite the omnipresent shadow of death, Hohyun finds himself drawn to Youngwon's enigmatic presence and unwavering commitment to his protection. Their journey, blurred between life and death, right and wrong, forges a bond that could be either their salvation or downfall.