All of Us Are Dead (season 2)

Bad things are happening at Hyosan High School. Some students, including teacher Lee's son, are steadily being bullied, and the school authorities turn a blind eye. When one student is bitten by a lab hamster, Lee isolates her and falls under suspicion of kidnapping-the victim is taken to the hospital and the teacher, despite his protests and requests for quarantine, is taken to the police. But the zombie virus infection has already been transmitted to the school nurse and has begun to rapidly take over the students, and now the few survivors will have to use all their skills and wits to avoid getting caught by their former classmates.rn