In the play, the heroine You Xiaoping chooses to run away from home and travel to the ancient city to relax due to the pressure of study. On the way, she meets the male protagonist Yi Nan, who is a teacher and wants to travel due to work pressure, and the two fall in love. Something strange happened in the middle of the story. Yi Nan had no sense of taste, no pain, and even no thought of going back. It wasn't until You Xiaoping saw Yi Nan's name in a major railway traffic accident on TV that she realized that he and she were already in two different worlds. You Xiaoping had a long dream during this period, returning to a world that should not belong to her again and again. In the end, Yi Nan started a new life for You Xiaoping, willing to give up the connection between himself and her in the two worlds. What people didn't expect was that Yi Nan actually had a twin brother. . How the plot develops, please read the full text.