Overview
As a physics professor of Northwest University, Mr. Dai meets some difficult with his son, student, and wife. At the last paragraph of his life, a series of softhearted stories happened.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 62 | 70 | |
 | 80 | 88 | |
 | 44 | 51 | |
 | 32 | 40 | |
 | 30 | 37 | |
 | 26 | 33 | |
 | 33 | 40 | |
 | 29 | 36 | |
 | 82 | 90 |