I did an interview with a vice president of SC bank at Seoul and two other senior/junior associates from strategic management department. My interview went really well, and I think I did pretty good even though I did not really prepare anything except background check of the vice president I met. I did some research about him because I was 100% sure that he's the one who's going to choose which intern they will going to hire. The most impressive question was that the VP said "I don't want to to an interview, but I want to have a conversation with you. I am pretty sure that this given 30 minutes will tell me what kind of person you are."