How do you set the country on your Wii settings to japan

Apparently you can't. At least: for my wii (bought in the US), the list of country settings are mostly in North and South America; for example neither Korea nor Japan are listed. Presumably if you bought your Wii in Japan, you'd have the converse problem.

The Wii shopping channel has different offerings/stores for Japan, US, and Europe, which might explain why different Wiis can only be set to limited countries.