Love is in the air? Well not for her. She hates boys and She obviously hates Valentine's Day, After her Boyfriend cheated on her. Her name is Song Ji Hyo a highschool student, She's the kind of girl that every boy dreams of (She's smart, pretty and strong) and she's also a model.

But the boys are unfortunate because they know they don't stand a chance being with her. But what if she meets Kim Myung Soo. He's the school's heartthrob but he never gives attention to a girl. What will happen if they became roommates?