A group of highschool students was about to go to a happy and fun school fieldtrip while riding a school bus together with their school teachers but when they're about to go outside the gate they saw people running while asking for help and being chased but people soaking with blood in their clothes and blood oozing from their mouths. They have watched a lot of movies about zombies that's why they knew that people outside the school bus they were riding wasn't ordinary people but they are definitely 'zombies'. Terrified and unable to speak as they continue to watch their schoolmates, school staffs and other people from outside the bus. In that day the government admits that there is a virus that they didn't able to stop spreading and they called it "Mors Virus" (Death Virus; In latin Mors means Death) a virus that came from a contaminated meats that were sell from each different countries all over the world. As a highschool student Isabella Joy Montereal together with her schoolmates and teachers that are eager to survive and live. They will do everything just to survive and conquer the apocalypse but even though she's determined enough, She can't help but to say to herself "The end is near."