Kickstarter supporter here! I've no idea where to leave feedback for the game on Discord, so I'll just leave it here, since Mr. Ryu seems quite diligent in answering questions here.
I gotta say, compared to other games or DD by Ryu himself, the prototype makes my M2 Macbook run QUITE hot! Pretty much the first thing to make this thing break a sweat, so there definitely is some room for optimization.
Also, the UI seems a bit clunky.. The diagonal nature of indoor environments combined with North/East/South/West movement makes for awkward movement. Dialogue and interaction with the "E" key is also a bit weird if you're used to RenPy games...
On top of that, the bar minigame is rather stressful and hectic, time progression seems rather unpredictable, jumping by random amounts when passing from one area to the next and the hunger bar is a bit unusual for a game like this to say the least... I'd suggest making breakfast/Dinner an automatic thing when entering/exiting home, removing hunger entirely and just focusing on money in-game. This is a dating sim and not a survival game after all. Last criticism: We're kicked out of the Demo rather rudely on wednesday.. makes collecting CG's and exploration a bit of a slog to get through. I kind of wish the game demo would let us explore without a time limit...
But for the rest... you've outdone yourself with the concept and the characters! I cannot wait for this thing to be released. There's never been a gay game like it and I wish you all the best with development. Surely hope there will be updated demos until then!