Some may dream of, some may be afraid of, some may look forward to, and some may want to avoid THE NIGHT BEFORE MARRIAGE! 4 different couples disclose 4 different stories all about marriage.
| Actor | Role |
|---|---|
 Kim Kang-wooTae-kyu | Tae-kyu |
 Kim Hyo-jinJoo-young | Joo-young |
 Lee Yeon-heeSo-mi | So-mi |
 Ju Ji-hoonKyung-soo | Kyung-soo |
 Ok Taec-yeonWon-cheol | Won-cheol |
 Don LeeGun-ho | Gun-ho |
| GGuzal TursunovaVika | Vika |
 Lee Hee-junDae-bok | Dae-bok |
 Go Joon-heeYi-ra | Yi-ra |
 Kim Ji-youngDae-bok's mom | Dae-bok's mom |
 Oh Na-raKo Sun-Ok | Ko Sun-Ok |
 Lee Mi-doBride | Bride |
 Kim Kwang-kyuDr. Kim | Dr. Kim |
 Hwang Jeong-minWomen's chairman | Women's chairman |
 Jang KwangYi-ra's father | Yi-ra's father |
 Jeon Soo-kyeongDress shop owner, Yi-ra's boss | Dress shop owner, Yi-ra's boss |
 Choi Byung-moMarried man | Married man |
 Im So-miKaraoke Helper | Karaoke Helper |
 Cha Soon-hyeongInterview Photographer | Interview Photographer |
 Choi Woo-jungBlock Signing Event Fan | Block Signing Event Fan |