Hey horbror, this is a really solid demo!
I really love the element of choice and how those choices effect gameplay, it embodies my ideal modern RPG! That also makes several different ways to beat it, like with the cards changing stats and the different choices for your "mood" stat. It's all so detailed and mechanically fleshed out!
One thing that was unclear was your inability to fight or run until you get the rifle. I actually struggled with this for a while (I initially missed the table where the rifle was, it's a little hidden in the shadows), I was stuck in many of the deer fights and had to keep restarting the game to get out of them (it's also confusing how you already have a gun before you get the rifle?). Maybe make a way to run away from them before you get it?
Also, is there like a Pokémon Center-esque place anywhere? I found myself depleting all my phantasm and on 1 HP for a while without levelling up again, so that would really help.
This is the kind of demo I'll have for my game one day!