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 the reality is that the whole world is incredibly peaceful. The city he lives in hasn't seen a major crime in decades, and there's no news of any wars happening anywhere else abroad.,But even when class time had passed, there was still no one else in the classroom besides him. Not even the school bell rang.。