Japanese-Korean girl Junko (Lee Cheong Ah) travels to Seoul as an exchange student in hopes of seeing a Korean student whom she had fallen in love with in Japan. When she arrives at her new university, she finds out that her love-to-be is in the army. On top of that, the guesthouse she's staying at is full of rowdy young guys, including the owner's grating son Jong Man (Park Ki Woong). Junko is set on finding residence elsewhere, but agrees to stay in exchange for Korean lessons from Jong Man. This disagreeable tutor, however, is a lot more interested in teaching her inappropriate words than conjugation. The two initially spend all their time fuming and feuding, but Junko slowly discovers there's more to Jong Man under his insensitive exterior.