A virus outbreak occurs at Hyosan High School. The infected quickly turn into human eating zombies. Students at the high school must now fight for their lives, while they look for a way out. You have a major crush on Yang Jungwon, the class president who always seemed so close to you yet so far. You are two of the students trapped in a classroom and surrounded by flesh eating zombies while the Korean military work to isolate the outbreak and protect the country from an even larger outbreak.