What if your rival since you were in high school become your husband? Will you two falling in love with each other? ForewordCharacters You-21-years-old girl-majoring business manager from Seoul University-your parent is owner of Park Company-youre closed people, but if you believe in someone youll be openness people-you have two bestfriends and you really love them-you couldnt hurt someone that you love Oh Sehun-21-years-old guy-he attended same high school, university, and faculty with you-his parent is owner of Oh Company which in the fact is partner with your father company-he looks cold outside, but actually he has warm-harted inside-he is your rival since you two attended in same high school-he always be most popular guy surroundings Lee Sena-21-years-old girl-she is one of your bestfriend-you know each other since high school-she isnt from rich family nor poor family-she always kind for you, but who knows in future? Kim Jongin/Kai-22-years-old guy-he is the other one of your bestfriends and he is the only your boy friend-he majoring medical because his parent force him-he attended Seoul University too-his parent is proprietor of some big hospital in South Korea-he loves teasing you-he quite naughty, but he never doing something bad