I lived in the USA for almost 8 years during university and had an experience sharing a room with a Korean roommate. His first greeting to me " I am not republican. I hope you are not homosexual. It was so striking to me. As I shared a room, He was boasting of his ample sexual experience with women from different countries. One day i returned my room for lunch, he was hyped from watching Porno Video with his korean friend screaming " I couldn't stand any more". Plus, He habitually took many women into my room to have affair even when I was in the room and he asserted it way of life. I found I could not stay with him and decided . to leave the room after all. I shared him only 3 days. But since then , I became biased to Koreans and found it right. Most koreans in Japan are quite hyped and don't listen to others.