Nice game,
yv0751! It's a unique art style, and the girls are all cute in their different ways. It's funny and well written, and I like the gameplay.
It can be a bit too grindy, though, particularly before you figure out all the mechanics to maximize efficiency. Also, in terms of crafting, I end up with an endless supply of sparkly blue fragrance that I have no use for, while I'm short of the other sparkly fragrances to upgrade the crystals. A recipe to transform sparkly blue to one of the other types would be appreciated!
The story progression logic is slightly buggy here and there, so that you get references in dialog to things that haven't happened yet, if you progress things in an unexpected order. It's also not always apparent why progress is blocked, with some hidden triggers that are not mentioned in the Quest log or in-game.
For example, when I tried to get Gwynn to research the crystal plug, she said she needed "the ingredients she mentioned," but that conversation hadn't happened yet. I tried to keep Nyx and Irith home every evening for about an in-game week, but the attic planning scene never happened because I hadn't yet attacked the Queen's territory. (I was holding off until I had finished the research tree!)
One suggested UI improvement would be to make it possible to close messages via keyboard. For example, when navigating the overhead mazes, you use keyboard controls for everything, but then when you open a chest, you have to switch to mouse to click away the messages. It would also be cool if as well as the buttons, you could click directly on the thing itself the way you can click on characters to start interacting with them. For example click on the mirror in your room to look in the mirror, or click on Irith's ass to spank her. I would find that more immersive.