When you thought it would be the best decision to step out from your youthful life moment, you enrolled yourself in the most prestige university in Seoul with your bestfriend, Ahn Ahri. And as if fate couldn't play any better, when a sudden encounter happened, started with an average yet a good-looking boy-to-turns—man, named Do Kyungsoo who was turned out to be your childhood bestfriend.

And at the peak of it, you were the problem of most in the story when you can't even remember any single trace of memory between you and Do Kyungsoo. And you decided to join in the fate that decided to gave you a thrill of excitement in a university's life, collided on a having a crush with  who-can't-be-named-at-this-moment.