作者KBP的視頻大神79homesick 。作者在YTB的原話：Happy 4th Anniversary.

I had so many mixed feeling on this comeback, frustrated, sad, disappointed, feeling like I'm being left alone. Question after question pop up in my mind, even a thought to give up, to stop watching you reaching for the sky. But there are things that is not in our power, no matter how much we wished, begged, pleaded, and some got angry in the way.

It's been 4 years of hard works and I hope we get to have more chance for you to shine, that we can say for the next years that we are proud being nameless.

f(5) f(orever)

Credits to : MBC for Amazing f(x); MNet for Go f(x)!; http://electri-x.tumblr.com/edits for the pics, I'm sorry I can't remember where I got the cartoon pic at the end. D, Cupcake, Bacon and Panda kid Lou for looking at the vid and help me with my crazy english ^^

Song used: SNSD - Complete