You are a girl studying in high school. There is a person who was always following you and always walking behind you without speaking to you or approaching you. But what bothered you was his continuous pursuit of you. You do not even know him or his name. It is clear that he is psycho or obsessed. On a normal day, you left high school and did not find him following you. You felt comfortable. Because it was the first time he did not follow you, but the relief did not last. When you took a few steps to your home and reached your door, you found him trying to enter your house, perhaps to kidnap you, and you backed away slowly so that he would not notice you. You ran to your friend’s house and knocked on her door forcefully, but she did not answer. While you were knocking on the door, suddenly you noticed the shadow of a person،behind you,Shadow reflected by the sun's rays it was clearly a man. You panicked and turned around slowly to find that the person who was obsessed with you.