Sungmin works as an undercover police agent, who was forced by his colleagues to work as a bodyguard of a brat known as Cho Kyuhyun (the heir of Cho Company that always gets himself in trouble all the time), stating that he needed a break (as a BODYGUARD?! - Sungmin) after his girlfriend's death.    

This is supposed to be a oneshot fic. But it's too long that I decided to make it into seven chapters...(OMG!!!I REALLY AT DESCRIPTION!!) This is only part of my imagination, and everything that's happening to Eunhyuk here is way too impossible to really happened. I

I wrote this fic after I read an article about Siwon and Young Saeng being classmates during high school...and I also watched a video in youtube wherein Yesung said that Siwon was so nervous when he heard that he'll be doing a duet with Young Saeng..