Overview
Cheng Yu, the lonely sojourner in the bustling city, goes in and out of a different empty house every day, prying into the city's secrets. He doesn't know why he's here, nor does he know where he'll go tomorrow. By chance, he saw the eighteenth-string actress Hu Mengya in an online drama, but never imagined that in the next seventeen days he would experience the three most important points in his life.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 34 | 39 | |
 | - | - | |
 | 32 | 37 | |
 | 29 | 34 | |
 | 28 | 33 |