An hour has passed since zombies started wandering around the city. You were sitting in school when suddenly you heard screams and falling objects coming from all the corridors.

You've locked yourself in the computer science room, blocking the doors with school desks. You'll have to survive and try to get out of the zombie-infested school. However, you've managed to gather some of your classmates to the company.

[Jung Jae Suk is smart and good with technology. Seo So Yeon is charismatic and has a sense of humor. Kim Namjoon is an athlete who has received many awards and medals. Li Mingui is a local authority, known throughout the school. Handsome and versatile. Ho Min Soo - loves to eat, is very noisy, and picks on everyone. Choi Nayoung is the school's beauty who is always clingy to the boys, but a bitch to other girls.]