I felt more and more stuffy in my confusion, as if every time the air I inhaled was inhaled, there was no oxygen content; I instinctively raised my hand and lifted the quilt. The air that was obviously lower than the quilt suddenly surged, making me wake up a little, and I couldn't feel the dazzling light. It seemed that it was not dawn, so I would sleep for a while... Dingding Ding Ding...! What kind of thing is this? My phone alarm changed? How did it turn into the sound of a mechanical alarm?! I sat up suddenly and looked at it: Fuck! I dreamed this?!! How was this room arranged like I had more than ten years ago?! It was unscientific, I thought... I turned my head and saw that the book on the desk was a textbook for the second year of high school... I went through time after sleeping?! I was so casual?