The world has developed, changed and globalized. Of course, Korean culture has also developed, changed and globalized naturally by accepting new foreign cultures. A new culture is forming even in Korea. However, part of Korean culture is preserved. People with an ethnic identity try to maintain their conventional culture. So, what is their culture and ethnic identity that Koreans are trying to maintain? It is courtesy, the directness of harmony and social relations. Firstly, Korea is well known as “the land of courteous people in the East”. A long time ago, China called Korea that, at first, because Koreans had Confucian ideas. Thus, Koreans consider courtesy to be very important and their daily lives are infused with courtesy. Koreans not only have respect and courtesy towards the elderly, but they also speak respectfully towards others. In addition, the Koreans make concessions among themselves. For example, it is easy to see that young people give up their seats to older people on the bus and that young people do not take the seats of older people in the metro even if there are no older people. Also, we find courtesy at meal times. Young people should not eat until old people have lifted their spoons. It's a kind of respect for older people. Second, Korean has harmony directness. In Korea, family is a top priority, so love for family is considered very important. For example, my father was a soldier and we moved continuously due to the characteristics of his job. So he retired because he thought that continually moving was not good for the family and for our education. My father always considers family a top priority. Koreans also try to reach out well to other groups and have a great sense of community. There are a few examples. People involved in a club feel like they belong and that gives people more confidence. So they try to join groups. Another example is that Koreans who move into a new house donate rice cakes to the neighborhood because they have a sense of community. For these reasons, Koreans sincerely rely on each other. Finally, Koreans consider social relationships to be very important. In Korea, the hierarchical system is very strict. In particular, men who have completed military service consider this system more important because the army is a representative hierarchical system. Due to this social inclination, people want to reach a high position in society and want to have good jobs as prosecutors, judges, doctors and lawyers..