Overview
A mentally challenged boy, Dong-gu loves going to school to fetch water for his friends. But he is disappointed, when the school decides to install water purifiers instead.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 42 | 60 | |
 | 9 | 28 | |
 | - | - | |
 | 40 | 58 | |
 | 35 | 53 | |
 | 10 | 29 | |
 | 32 | 51 | |
 | 41 | 59 | |
 | 35 | 54 |