@Evgeny Fedeykin

Thank you.  I wonder why there is no equivalent in Korean.  :/

Naver dictionary says 문화 브로커[중개인]; 이(異)문화간의 가교역, which is obviously calque. I guess you cannot use it as it is in real life and need an explanation after using "문화 브로커".  

(it is pure conjecture)