How to make Japanese pages?

I want to create pages which include Japanese characters. I don’t know how to make them show as actual characters, not things like “??” or “?A” like I’m getting.

I CAN type and view Japanese on WordPress posts and when editing from there. I want to create veiwable pages outside WP.

There must be a code in the WP template which makes that work, right? That’s why I’m confused because all my pages use the same template as the posts.

I want to know what I need to do to get it to work, encode the pages?