Amber and Krystal are members of a k-pop group called f(x). Their fans are so fond of them that they named the couple as Kryber. Of course it is very funny since both of them are girls but since Amber dresses herself boyishly, you would think she is the perfect boy for Krystal. At first, Krystal was okay with this but recently, she feels a little awkward especially when Amber acts like a gentleman towards her. How should she deal with this? Some people are also getting suspicious about their relationship because of the way they act towards each other. Will Kryber come to an end?