Sunghoon is your fiance who didn't show up on your wedding day, he just disappeared because he realized that he's not ready yet. You don't even know if he's still alive or not but your friends told you that he moved to another country.

That happened 6 years ago, but the fear is still there. The fear of being left behind again, the fear of questioning your worth again.

You're now focusing on your work, and doesn't have plans on getting married or engage again. Luckily your new boyfriend is understanding, but does really understand you?

Your best friend, Jungwon, who's also Sunghoon's best friend invited you to his wedding, he begged you to attend, so even though you have meetings to attend you just rescheduled it. Without knowing that attending to that wedding will be your biggest nightmare.

You ran out of the church, after seeing a familiar face that you last saw 6 years ago. The person that caused you so much fears.

"Hey, wait!" Sunghoon shout, he followed you outside.