Yuri was invited by Siwon in a party..Then being a person who doesn't know how to humiliate a person, she initiate the invitation of him. Then Yuri immediately beautified herself, she wore a blue gown.

here's the dress she wore:

While fixing herself, Yuri's phone rings.. Yoona is calling her...

"Yoboseyo.. Yoong.."

"Yoboseyo Yul.. Just wanna inform you that I cannot fetch you because Donghae picks me up...we're heading at Siwon's house.. But don't you worry unnie I will  tell Siwon to fetch you..."

"No need Unnie, I'll just go there by myself"

"I'm really sorry unnie.."

"It's okay.. Enjoy that moment with your fishy"

"Yes, I will.."

Then Yuri immediately get her car key..and quicky drive her car..

When she's already at Siwon's House she notice a girl talking to him..and she notice that the girl is crying, and immediately Siwon comforted the girl by giving her hug

take a look:

"Who do you think is the girl?"

Then after a few minutes, Siwon notice her.. and introduce the girl with her..

"Yuri, this is my childhood friend Sooyoung..Sooyoung a close friend of mine, Yuri" Siwon said 

"Nice meeting you.."

" Same Here.. You look simply elegant ah"

" kansamhamnida"

Then suddenly Sooyoung's phone's rings...

" Wait Siwon.. I will Just answer the phone..." 

" Okey.."

" You we're really close to each others..." Yuri said

" Super...You know I even court  her long time ago...before I had met Yoona but I think I'm not lucky enough on them.."

" And why telling me those things?"

" Wait,, I think you're jealous to her.."

" Who told you?"

"I can feel your heartbeat.."

"He!"

Then after a minute, Sooyoung interrupts them..

"Yuri, it's really nice meeting someone like you.. hope you enjoy.." 

"Siwon..I really need to go, by the way I enjoy the party.. You'll gonna date me tomorrow ah..." Sooyoung said and kissed his cheek.

He nodded. Then Sooyoung leaves the two.

" So you will have a date with her ah.."

" It's just a friendly date.."

" friendly date ah.."

Then suddenly a emcee announced that Siwon will going to sing a song..

"May I call on Mr. Choi Siwon to sing a song for us.."

Then Siwon go to the stage...

"I want to sing this song to the girl who really caught my attention,

Then Siwon move a little closer to Yuri..

" I want to dedicate this song to Yuri."

Then Siwon sing the song "What makes you beautiful".