Love the game. My only criticism is that there's no easy way (if there is a way to at all) to delete/wipe the save data. Otherwise, its amazing.
That's pretty common with Ren'py games. You have to manually delete the save data by looking through your computer's "Appdata" folder. You'll find NMF's under "Synthetic" (pre-release name for the project). Perhaps someday we'll add an easier way to manually delete game and save data from within the app itself, but that's a pretty low priority right now.