Marriage Blue is the story of four couples are looking forward to the happiest day of their lives. However, many incidents occur, leading them seemingly away from each other forever.

• Marriage Blue
• Kim Kang-woo
• Lee Yeon-hee
• Ok Taecyeon
• Ma Dong-seok
• Guzal Tursunova
• Lee Hee-joon
• Go Joon-hee
• Hong Ji-young
• Kim Hyo-jin
• Ju Ji-hoon