Perhaps, this is a story that has been told by ABCD orally, and has been "catched on the wind" and "heard by hearsay" by E. It has nothing to do with time travel, and has nothing to do with history. Maybe it just changes time, changes the street scene, or it can just happen around us so straightforwardly.
The story that takes place around the protagonist Qin Lan, is it love or work, struggle or waste? I didn't even think about it. There is no plot line, I just hope that with every tap of the keyboard, the protagonists can take their thoughts and move towards a more practical maturity.
If life is just like the first time we met, the place where old friends return is also the hometown.