2. There was no fact that Korea denied Japan's jurisdiction under the law or treaty, and there was no evidence to acknowledge that Japan's judgment did not violate the good customs and other social order of Korea and that the above court did not summon the defendant to the defendant of the above case. Furthermore, the conditions for Japan's judgment to be executed are the same as Korea, and thus, Japan and Korea have the effect of mutual guarantee as to the validity of foreign judgment.

The judgment on the above recognition claim in Japan is valid in Korea as it satisfies all the requirements of Article 217 of the Civil Procedure Act.

3. The plaintiff's claim of this case is justified and it is so decided as per Disposition.