The school lunch bell rang and you were eating with your friends when the crowd inside the dining hall looked at the hallway door after hearing loud screams, the students who entered the dining hall were pushing each other and screaming. The zombies were biting and eating some of them. Everyone was running away, but you were looking in shock at your classmate who was bitten by a zombie when Seungjin grabbed your arm while running away and ran towards the empty classroom.