If you were suddenly to be paired up again with your ex-lover whom you haven’t seen nor talked to for years, how will you deal with it?

A romance that started from being two high schoolers that has polar opposite attitude to two adults that had their ways separated after finishing college.

Sana was the typical one that has a bigger dream. Coming from a broken family, she only has herself and her grandmother. Of course, life is not as easy as it looks like, and so her grandmother taught her since childhood to be strong and not to let other people degrade and look down on her.

While Dahyun, she was the happy go lucky one. An actual bright kid, but, she doesn't like attention, crowd, limelight and what not. And she was an heiress, one of the things that sets her apart from Sana. But this didn’t hinder for love to blossom between them.

Two adults that was just minding their own businesses. Not until one day, when both of them got notified that they were to be paired up… again. Just like what happened during their high school. No one anticipated for them to meet up again, hell to be under the same everything after years of being apart.

Having to deal with one another the second time around after their sour break up, will this be the key for another chance of their love affair or this will set as their closure?