Falling for the fool ((Joongdok))

"Dear Yoo Joonghyuk,

When you read this, I will be long gone.
First of all, I want to start my letter by apologizing for leaving.
I am also sorry for being selfish enough to think you would care enough to feel sad in even the slightest, better yet read this. I don't know if you are here reading this, but if you are, please know that I have always loved you. It has broken my heart countless times realizing there would never be a chance-so I, as the coward I am, have given up. I sincerely apologize for making you the victim of my shallow emotions, so forgive me for being selfish. For the last time.

- Love, Kim dokja"

There were already tear stains on the letter, yet new ones were now landing on the headache inducing paper. Yoo Joonghyuk tightly clenched the paper with furrowed brows.

"Kim dokja, you fool. Do something that makes sense for once."

AKA

Sooyoung and Dokja decide to prank Joonghyuk, but what happens when things take an unexpected turn and dokja suddenly disappears?