Overview
Two people who don't seem like identical twins, with both having love lives going nowhere. Yet, Gae-ddong suffers from a traumatic childhood experience and is introverted with low self-esteem. Meanwhile, his friend Changsoo is proud and boisterous. As Gae-ddong finds happiness, troubles reoccur, building to a final crescendo.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 33 | 45 | |
 | 45 | 57 | |
 | 27 | 39 | |
 | 44 | 56 |