“…Who are you?” I asked in horror as I stared at the back of an unknown man inside my bedroom. I was standing at the doorway in my room and found a suspicious man inside. The man was wearing all-black clothes from head to toe, leaving no single part of his skin visible to the naked eye. The room was silent, and my voice echoed throughout the room, but the man did not move even an inch and stayed where he was like he did not hear me. My eye pupils dilated as I tried to stare intently at the man in that dark room. It was a bit dark inside, and the only source of light was coming from the lamp on the bedside table, but that was enough for me to see even the man’s little movements. “I’m asking you, who are you?!” I shouted at the top of my lungs. My voice broke as fear quickly esca