Help decrypting 2nd yakuza psp game file

[SamuraiOndo]

Okay so, to make a long story short, I need help extracting the pspf file for kurohyou 2.

font_subtitleskh2.7z

It's different than the first kurohyou games pspf, so I can't use the thread by Aegehn (on gbatemp). I've figured out basically every other file format, besides this one. Help will be much appreciated. Thank you!
Here are a few things ive figured outmyself
uncompressed graphics start at offset B080
everything above that are characters and what is called when a certain letter is used