The structure ‘noun + 밖에’ is usually followed by a negative sentence, to indicate that given action is not allowed for anyone else but for the ‘noun’ in the expression. It is more like the use of ‘except or but’ in English. Examples: 이 가게에서는 유로밖에 사용할 수 없다. We cannot use any other currencies but euros at this store. 녀의 부모님밖에는 이 소식을 알지 못한다. Nobody knows about the news except her parents.