12 years.

All those time and years of being together, sharing special moments of your lives, and facing hardships that only made your love for each other stronger...

Only for it to be wasted by your unfortunate fate.

You died from a car accident... So why the hell are you back in your 16 year old self, in school, in your school uniform, and in your seat in the classroom?

You seem to have woken up only to find out that you have traveled back in time 13 years ago. You were still dumbfounded since morning and have been spacing out in class, a million questions running restlessly in your mind when suddenly, you remember something. Someone.

Him. You traveled back at the time where him, your lover, hasn't met you yet. You were then hit by the sudden feeling of sadness and longing, remembering the times you spent together before the accident that had brought you back in time.

But, who knows? You'll still end up with him, right? Just like how everything went between the two of you that will probably happen in the future. He will reciprocate your feelings. Just like before. Right?

As soon as the bell rang, you literally sprung out of your seat and rushed to find him. You first went to his classroom but he was not there so you had to ask his classmates. One of them, who was a friend of him, said that he's at the rooftop right now.

To your relief, he was indeed there. Kim Sunoo. The man you are hopelessly in love with, who happened to not know you yet as far as you can remember. But, the current problem is the reason why he's at the rooftop in the first place. A girl is currently confessing her love to him and you could only watch and pray that he would reject her. Sunoo has not been the type to be interested in anyone, his only focus being his studies at the moment. He would definitely reject any love confessions, right?