Korean and Japanese

I am a Korean, but I lived in Japan 8 years. So, I felt many differences between Korea and Japan. As Both of them are Asia, they have also many similarity. On the other side, they have big differences such as thinking method, natural environment, and popullation. First, many Korean like mixing with people. They are emotional and like care about people. They give and take each other. Unlike Korean, many Japanese don't like owe another people. They rarely ask to another people. Second, the area of Korea is smaller than Japan's and there are many mountains and rivers. The area of Japan is 4 times bigger than Korea and japan has many islands. Last, Korea's population is almost 50 millions. As compared with Korea, Japan's has three times many people.