Jung Hohyun barely completed his final assignment before falling into a deep sleep. He awakens on Christmas morning to the horrific sight of fellow students turning into zombies. Panicking, he flees and encounters Ki Wonyoung, a seemingly remorseless zombie killer. However, their brief moment of relief is disrupted by Wonyoung's odd behavior - he claims to already know Hohyun, using a different name. Despite this, Hohyun finds himself drawn to the enigmatic man who appears solely focused on saving him in this surreal world.
