It's the first day of school. The first day of my Senior Year!

It's really weird to see everyone when summer's over. There are people who got a tan, some got skinnier, some gained a few pounds. Some grew taller, some didn't change at all- like me, same old, same old.

I made my way through the crowd. Few hi's and hello's here and there. Being popular is never easy. There's always a lot of people trying to get your attention, even though you don't know them. Any girl would want my position right now, but sometimes, I just want to be invisible so no one could get into my business.

Fortunately, I got to my first period class just in time.

It's the first day so we could sit anywhere we want. Sadly, Krystal doesn't have the same class as me.

I made my way to an empty chair beside a guy with dark brown hair. His hair looks really familiar, but I can't see his face since he's staring out the window.

"Annyeong." I tried to start a conversation.

I was so surprised when he turned to look at me.

"Jonghyun?!"

"That's oppa to you, Hyuna." He smirked.

"Omo, you go here?" I asked before I realize