An impressive foundation for a game. I personally am a fan that I don't need to worry about minigames or puzzles right now, just go through all of the options, get stuff, progress further.
The art is top-notch, the writing is pretty good as well (The dialogue makes sense.). The only issue is that there isn't much to do (But that's understandable considering how early into development it is.)
I do have to say that there being 0 bugs when I played through it was pretty darn impressive as I've seen a lot of early alpha builds for RPG maker games and some of them are really bugged.
The only thing is that there are only a couple of parts that have art in it, which made me sad.
But it's a strong start and I'll make sure to keep an eye on future versions.
Edit: Just a suggestion regarding Patreon. I've seen them break down on games of the "incest" variety, and I think as long as you remove any indication of this game belonging to the incest category, that should stop them from breaking down on your game as well? (Maybe change the summary into "step-parents" or give a simpler explanation which wouldn't mention that you'd be romancing your mother.)