Japanese category names and their URLs!

Hi. I installed a fresh WP, installed plugins, and everything is good to go. I imported my Japanese data, and that seems to work too.

But there’s a problem with the category URLs. Because category names are Japanese, their URL-ified permalink looks something like this:

https://domain.com/blog/topics/caaaisafzafaafaafaaa

Instead of doing it this way, I’d like to show the ID of the category. Where should I set this up?

In my Permalinks, I have the following path:

/%year%-%monthnum%-%day%-%post_id%

Which leads to individual paths like these:

https://domain.com/blog/2007-09-16-1261

I would have liked to use post_names but individual entries also have Japanese titles, so their “post_name” would also be garbled by WP.

Anyway, this works for the Single Posts. But I don’t know how to make this work for Category paths. Any ideas?

Thanks!