You had a Lover back when you’re in high school named Seo Joon. He was in the rank 267 which is the lowest while you ranked top 1.

You two meet because of the schools project wherein the lowest and the highest person should be filmed, almost like a documentary you two started off as enemies but you both caught yourselves falling for each other

And not long you two started dating each other, it was the best feeling of your life

4 years later.

You two broke up for some reason and started being strangers again, you are now an artist who doesn’t like being exposed in public and you also sell your art works. while he is working in a small company

After years of no contact you started to forget him.

While you were sleeping the doorbell rang, it rang a few times before you got up

You walked towards the door and opened it

And there he was. Your past.