This ghost comes with additionally fox.dll
So it's no script file, not easy to take a look inside.
Probably this file is the reason, why you can't use "Set Default Charset"!
So you can't get rid of mojibake to get Kanji instead.

Delating fox.dll?
No good idea probably, because of built-in functions.
I think, there is written, when the Silver Fox appears/disappears,
also, when Hana changes to her dark side.

Besides total script size, another reason, better not to use Hana as a template...

Better use Smiley or METAL nurse Airi, or else with no additionally dll...