How to keep map in native Language.

I am trying to download a routable map of Japan from garmin.openstreet website. The map there is in Japanese. I download the installer for base camp and everything is in very poorly auto translated English. I would rather the Japanese than auto generated English. I set Base camp to Japanese but the map is still in auto generated English. Anyway to change this?

I’m sorry but that is not available on
Please understand that the map and the are not the same.

Search for a map provider that builds the map you want (maybe like this), or use mkgmap and build the map yourself.