Yoona and Jeongmin, along with their parents lived in Daegu because of their parent's work. But when Yoona and Jeongmin have reached college, their parents decided to send them to Seoul and have a better education.

Yoona and Jeongmin have been best friends ever since they were toddlers. They love each other a lot. But as time passes by, Jeongmin seemed to develop some feelings towards Yoona. But he decided to keep it to himself, that's how much he values his friendship with Yoona.

On their first day in College, Yoona had a huge crush on a guy named Onew. An arrogant, rich and a cold person. He's also one of the Kingkas. Yoona tries so hard for him to notice her, but it's only a waste of time. Maybe because Yoona is a nerd that everyone would probably ignore, except for his best friend. Jeongmin accepts Yoona for who she is and he loved her for that.