'sea of japan' shown you is marked invalid. It has not yet been named correctly, but the two countries are in talks. Therefore, it is not the sea that Japan has.

In both countries that are not 'sea of japan' as 'east sea' pledged a situation.

Do you know Dokdo island in East sea? The island is owned by South Korea. This is an argument based on clear historical facts. Even if it's a small problem to look at in other regions, please check it.

I would like to attach some references to help your understanding of this matter. I hope that errors in your website will be corrected. If you do not mind, could you let me know an e-mail address of the person in charge or another possible way to correction, please?

Thank you again for your help. I look forward to hearing from you.

Yours sincerely,