I think that script engines compatible with iOS and Android often use UTF8 for file name encoding.
The pfs archive of "Real Eroge Situation! Hx 3" (https://vndb.org/v21894) is Version 6.
However, the file name encoding is UTF8.
The OpenPf() method of Artemis/ArcPFS.cs is coding as follows.
var encoding = version >= 8 ? System.Text.Encoding.UTF8 : Encodings.cp932;
I think that there are both cp932 and UTF8 in the Version 6 archive.
If file name is incorrect, GARbro can not understand the resource exactly as shown in the figure below.
The reason is that GARbro can not get the correct filename extension.
GARbro can choose the encoding when browsing text files.
So I think that these problems can be solved if the user can choose the encoding of the file name.
I think that Artemis engine pfs archive Version 8 is the current main stream.
So it is possible that this game title is an irregular pfs archive Version 6.
So it may not be necessary to extend GARbro only for this game title.
However, there is a possibility that such irregular game titles will be released even after the future pfs archive Version 8.
I'd appreciate if you will consider this issue at your free time.
I think that script engines compatible with iOS and Android often use UTF8 for file name encoding. The pfs archive of "Real Eroge Situation! Hx 3" (https://vndb.org/v21894) is Version 6. However, the file name encoding is UTF8. The OpenPf() method of Artemis/ArcPFS.cs is coding as follows.
I think that there are both cp932 and UTF8 in the Version 6 archive. If file name is incorrect, GARbro can not understand the resource exactly as shown in the figure below. The reason is that GARbro can not get the correct filename extension.
GARbro can choose the encoding when browsing text files. So I think that these problems can be solved if the user can choose the encoding of the file name.
I think that Artemis engine pfs archive Version 8 is the current main stream. So it is possible that this game title is an irregular pfs archive Version 6. So it may not be necessary to extend GARbro only for this game title. However, there is a possibility that such irregular game titles will be released even after the future pfs archive Version 8. I'd appreciate if you will consider this issue at your free time.