[SOLVED]Ariard -Under the rose- ERROR Unable to convert ANSI string to Unicode string

EDIT: Solution found!

I tried using Locale Emulator (https://pooi.moe/Locale-Emulator/) before executing the game. It works like a miracle :0 sometimes you have to turn off your antivirus to execute it but it's manageable

It seems that even though I changed my system locale to Japanese, the game didn't really recognize it. Ah well. Win10 is weird.

Thanks for reading ^^

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I downloaded Ariard fandisk and when I tried to open the .exe file an error pops up:

Attachment 176015
I tried to translate it and I think it says something like "unable to convert ANSI string to Unicode string"

Troubleshoot actions taken:

1) Changed system locale to Japan
2) Upgraded Win10 Home to Pro and add Japanese language pack
3) Further google-ing gave me a result of my computer not having a Shift-JIS code?
4) At the same time I was playing Kintouka. Although the window title showed gibberish symbols but the in-game text is ok

Anyone can help me troubleshoot this error?