There seem to be a couple softlocks, just fyi. Ayame's spanking never ends (although she can walk to the beach with the board and then back to her spanking), whereas Gem can't go back to the house to trigger her spanking (unless there's a way to exit the woods onto the road, but it always dumps me back onto the beach). I got around both of these using the "Text only" button, but I'm sure that's not the intended solution.
Great game so far, though!