Overview
Yeon-woo is reunited with her first love, Yoon-jeong, at a reunion after returning from America. While her husband is on a business trip, Yoon Jeong-eun calls Yeon-woo to her house and has sex. Yoon-jeong's husband, Jun-hyeok, finds another man's hair in the bed and visits Yeon-woo to warn him. Yoon-jung comes to Yeon-woo with a complicated heart. The two have sex once again and confirm their love...
| Actor | Age then | Age now | |
|---|---|---|---|
 | 20 | 25 | |
 | 36 | 41 | |
 | 37 | 42 | |
 | 24 | 29 | |
 | - | - | |
 | - | - | |
 | - | - |