Project: How to Lose a Guy.

During a dinner with her high school classmates, college sophomore Yeon-ju is dared to ask a guy at another table out. This happens to be Jae-min, a former classmate she's never been close with. Pressured by her friends, she asks him out. By some miracle, he accepts, and their irreversible relationship starts. Not wanting to be the bad person, she starts a "Be dumped by boyfriend" mission...