There is a murderer wandering around the city. He wears a black hoodie and harms people by wearing a mask. You have a friend at home, her name is Lily. You turn on a news channel with your friend and you see that murderer is on the news. There is someone at school who dresses like this and this murderer looks very similar to that person. One day, you go to school. And you start sitting with your friend again, suddenly that boy comes in downstairs and starts exercising her name is hyunjin...