At the roof...

Baekhyun is standing by the fence.

*FLASHBACK*

4 years ago...

Baekhyun's Mom: Baekhyun, would you sing me a song? I'm feeling a little down today. (sad smile)

Baekhyun: Why? What happened? Did you have a fight with father again?

Baekhyun's Mom: Just a little misunderstanding. I'm sure we'll fix it in no time. (took a deep breathe) So, why don't you cheer me with your singing? I really love the way you sing, it remind me of the first time I met your father. It's also one of the reasons why I fell in love with him. 

Baekhyun: Ok, what song would you like to hear?

*END OF FLASHBACK*

Baekhyun: I wonder what my mom is doing right now. She just left after a big fight with dad. (punch the fence) Damn that father of mine. What the hell did he say to her? And me? Why didn't I do anything? Fighting doesn't help to take away the guilt of not stopping her at that time. I'm such a coward, I'm such a coward. 

Taking a deep breathe, Baekhyun started to sing.

I'm gonna live my life

Like everyday's the last

Without a simple goodbye

It all goes by so fast

And now that you're gone

I can't cry hard enough

No, I can't cry hard enough

For you to hear me now

Can I open my eyes

And see for the first time

I've let go of you like

A child letting go of his kite

There it goes

Up in the sky

There it goes

Beyond the clouds

For no reason why

I can't cry hard enough

No, I cant cry hard enough

For you to hear me now

Can I look back in vain

See you standing there

With all that remains

It's just an empty chair

And now that your gone

I can't cry hard enough

No, I can't cry hard enough

For you to hear me now

There it goes

Up in the sky

There it goes

Beyond the clouds

For no reason why

I can't cry hard enough

No, I can't cry hard enough

For you to hear me now

He finally open his eyes and decided to take the afternoon class. And as he turn around around he saw a