Japanese has done a lot of bad things to Korean.
They think the Dokdo is their island which is not true. Dokdo is a island in between Korea and Japan. And it is 97 miles away from Japan territory and 54 miles away from Korea. Some people might say that the distance does not make dokdo to be a Korean island. But since 1900s, history clearly states that the Dokdo is Korean island.
More info about Dokdo : http://en.dokdo.go.kr
Japanese government is illegally posting that the Dokdo including East Sea is their terrritory. Most people think and know the east ocean of the Korea is called Sea Of Japan. But original name of the Sea is East Sea, not Sea of Japan. Japan changed the World map by illegally posting the Sea of Japan.
History knows the truth. Reconsider your KNOWLEDGE JAPAN!!