Somewhere in South Korea, lives 2 groups of 4 friends. One love k-pop, Fashion and everything good... that group were composed of TaeYeon,Yoona,Yuri and Seohyun. Another group love boy's stuff and also k-pop... that group was composed of Baekhyun,Sehun,Luhan and Kai. When they meet, will they will they experience above at first sight? Or will they be "Just Friends"?