Gong-woo argues with her younger boyfriend, Gyoo-won, and goes to her sister Yeon-woo's honeymoon home. Yeon-woo's husband, Jeong-hoon, prepares some drinks for the sisters. Gong-woo and Jeong-hoon end up seeing each other in their underwear and after getting drunk, they cross the line...
| Actor | Role |
|---|---|
 Kim Ji-ahGong-woo | Gong-woo |
 Sae BomYeon-woo | Yeon-woo |