Eunna and Aena . Who doesn't know them? BFFF in that Seoul High . They're like twins . 

Eunna is hot,y and pretty girl 

Aena is spectacle girl . She is a shy girl though .

Everything's changed when Kai,the new student enter the school . Same class with Eunna and Aena . They both have a crush on Kai 

But what will happen when Kai choose one of them to be his girlfriend? Oemgee the war will begin!