I said I would time

After confirming the time, his heart was in turmoil, constantly thinking: "This time travel went back a year But my memories before time travel were clearly of myself lying down to sleep.",But even when class time had passed, there was still no one else in the classroom besides him. Not even the school bell rang.,“I don't know either, it seems like some kind of temporal disturbance happened, affecting the location where the door opens. Wait... there's someone there, he encountered the natives of the mirror world.”。