Hello Sorry, your question is a bit confusing. You're asking whether Korean or Japanese people are arrogant to people they've just met? I think you might have got this idea from their dramas as there are few arrogant and rude people such as kim joo won in secret garden or hwang tae gyeong in you're beautiful To answer your question, Korean and Japanese culture has great influence and being polite is a big part of their culture. Therefore, Korean and Japanese people are very polite when meeting new people. At least from my experience all of them were quite polite and friendly. I am sure there are some arrogant people as there are in any country, but in general they are nice and friendly people Hope this answers your question^^