hi so i tried to run it following the  setup tutorial but i still get the error  the files dont appear in Japanese even after the encoding

If you are having trouble with the tutorial, you might wanna take a look at this one too: https://itch.io/t/3275551/tutorial-how-to-run-the-game-successfully

It's pretty much the same thing but it has pictures and stuff.

Make sure that when you are extracting, you set your encoding to Japanese. And every time you open the game, you need to open it with the locale.