extracting files from Rabi-Ribi?

i tried getting into ripping a year ago and could never get into these forums due to screwy email not working.

now that i am finally here i hope i can get some help for a game i stumbled across recently as stated in the title.

i was looking into getting all of the CGs and character portraits w/ pieces from there, but google has failed me very hard.
so now im here, the game is on steam and on the companies own site.

(im assuming a PC game like this can have these kinds of texture rips as i spotted similar stuff ripped from the PC only game Recettear)