Just curious, where are save files stored for this VN? Not that they're that important since the VN is linear and pretty short anyway, but I'm just curious. At first I wondered whether it was log.txt, but some testing quickly ruled that out. I'm now wondering whether it's in AppData\Roaming\RenPy\GrumpyGirls-[some numbers]. The number of saves and quicksaves I have matches, and the VN *is* about grumpy girls, so..
Edit: Hmm, that's not it. Renaming that folder doesn't cause the saves to be lost, even though it does certainly get re-created every time I launch the VN.