Hey, this is really REALLY good! Very well polished, both in terms of UI and in content, and gameplay seems nice too. The black+white+color aesthetic works wonders, and your KK models are also really well done.
This is the kind of thing that could easily hold a Patreon page, if you intend on continuing development.
If you ever set up a twitter/patreon/discord, make sure to reach out, I could give you some pointers :)