Shim Se Kyoung, a 26 year-old woman, doesn't have any thoughts of getting married yet. She's always busy with her work as a fashion designer. Her Dad, has been trying to introduce some candidates to her, but no one got her interest until a childhood friend of her, Park Chanyeol, came back from abroad. She is so happy that she could see her closest fellow again after ten years, but a marriage setup decided by their fathers makes the good relationship becomes awkward. It becomes harder when another person unexpectedly comes and always succeeds in distracting Se Kyoung's attention.