Kirashite

So, not a long time ago I've read G-senjou no Maou, liked it, and thus would like to translate it (into russian). Despite all the hardships encountered, I unpacked data.xp3, changed some scenario content and packed it back(to test it). All works, so I've tried to get my hands on patch.xp3 and patch2.xp3, but KiriKiriExtract doesn't recognize these two files as archives, same for GarBro, arc_conv, UniExtract2 etc. I tried everything I could possibly find, but with no result. Maybe it's something related to encryption of these files? I would appreciate any help, if you offer any.