Starting with recent updates, Nexon has updated their HFS archives so they can't be opened using regular methods.
Neither "VZipFlip" nor "HFS Extract" can extract those hfs files.
And the old wiki about Vinidctus hfs structure might no longer be the same.
HFS contain things such as sounds, models, icons.
I've included the example of those hfs files (there are some hfs files that have over 50 parts, seeing as they're split), as well as .exe file of the game:http://www.mediafire.com/file/xq9qgii4va9ifur/mabinogiheroes_exe_and_5_hfs_files.zip/file
I wonder if it's possible to somehow extract those.