Sunny Johns , a beautiful young smart and progressive secretary of the number one Parks company limited in the whole country yet still having a cold aura due to her tragic childhood, lives peacefully with no drama or disturbance. Until her boss Mr parks introduces his three grandsons, who will take over the company, turns her life upside down and reveals some hidden secrets about her birth ,in between still caught up in a love triangle Will she unravel this secrets? Will she turn from been cold to been sweet? Who will she later end up with?