Overview
A former Asian Games record breaker and Olympic tryout, Kim Gwang-su, endures beatings, abuse, and constant ridicule from his swimming coach. To justify this abusive behavior, his coach constantly reminded Gwang-su - this is for your own good.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 12 | 21 | |
 | 39 | 49 | |
 | 46 | 55 | |
 | 48 | 57 | |
 | 23 | 32 | |
 | 42 | 52 | |
 | 46 | 55 | |
 | 45 | 54 | |
 | 53 | 62 | |
 | 36 | 46 |