Two Children made a promise ,that they will always together until forever ,However their Promise unlike their expectations . Because One Of them moved to another country because Their parents's work .although they were both sad, but they remain strong because they promised that She would back to him if they already grow up . Each year ,  grow handsome guy named Kim Myung Soo, He is very famous among the girl in his university . but he did not care, because he is still waiting for his friend who promised will back to him if they grow up .

What will happen about it ?

Will Myungsoo is friend back to SEOUL again ?