Overview
63-year-old Jong-chil has been re-employed as a senior water purifier engineer after retiring from public service, and is working as a trainee. While under pressure for sales profits, his co-worker Hyun-suk informs Jong-chil of his business secret-selling a new water purifier under the pretext of repair to a customer, and making a profit by selling the customer’s used water purifier. But Jong-chil doesn't want to do the job.
| Actor | Age then | Age now | |
|---|---|---|---|
 | - | - | |
| 42 | 44 | |
| - | - | |
| - | - | |
 | 47 | 49 |