Yup same complaints, game could be at 1st be by luck and later you can caress her and she can give you a hint by not exactly saying the number, but implying :) with compliments or she will do a "trick" "oh it's actually 3 threes, lucky you" wink wink or caressing will pull odds on player favour.
Mining doesn't need to be scrapped, but needs a fix, better detection, collections could be just abysses not small containers and maybe later get a better pickaxe for oneshoting the rocks.
Also look into Lovense toys, implementing seems like it's easy a lot of games do that, that I've come across. Wish I could help with the programming, but you probably have your hands full as is.
The art however OH MY GOD 10 out of 10, amazing and interactive animations, mindblown.
If I remember I will throw a bit of money at this even though I'm broke, the art just too beautiful.