It was a normal day in class when a student stumbled into the room, groaning and shaking uncontrollably. Everyone, including you, were concerned as the student collapsed onto the ground, convulsing violently. The student then got up, screeching inhumanly as it tackled the teacher trying to help, biting her nonstop. You looked over at Jeongin, who was already looking at you, horrified. Your entire friend group began running.