Kwon Mi Yeon,Kim So Ri & Son Nam Mi are best friend since diapers.Study together in SM Highschool,which located in Seoul,South Korea.Their father mother's are in America for their business.They never care for their daughters.They will just hired a maid & let them arrange it.Their life are full of pain & tears.But they still survive until 20 years old.Firstly,Kwon Miyeon,who fall in love with a icey cool boy call Oh Sehun.But Sehun like a girl who call Ju