It feels like the 1940s or 50s, or perhaps the 1950s or 60s. Technology wasn't very advanced, but it was also a period of technological explosion.,But it is also possible that at any time, due to the sudden outburst of certain emotions, this fragile relationship could end.,This thing wouldn't have fallen from the sky, nor would it have drifted in on a flood. In fact, many people wouldn't even change their lives if they were given the chance to go back in time.。