An ordinary university student, Hayoon. She meets Kang-on on a trip for which she leaves on impulse.Kang-on falls in love at first sight with Hayoon and confesses to her but she rejects him. The two who thought they would never see each other again are reunited during a university club recruitment event...and end up joining the same club. But wait..the president of the club they joined likes Hayoon too?!