Hi I just finished playing the demo today and I really enjoyed! The UI was clear and fit the theme of the story and the art is beautiful. For a small demo it's really polished and clean, I really got a sense of what this game is like (or at least I hope I did and there's no dark twist at the end lol).
I'm unsure if you're looking for any feedback but there were some parts in the writing that I believe can be improved upon. During Jen's route I think she opened up too much in the beginning. Things were moving incredibly fast and having her talk about her rough past was little awkward considering this was our second time meeting. It would make a lot of sense for Tau and Runia to open up about something dark as they already know who you but for Jen it doesn't make a lot a sense, especially seeing as she doesn't normally open up to strangers like that. I also believe that her design could be tweaked a tad bit to fit the universe more. Her outfit is really cute and unique but seems out of place as she is a store owner. The big fluffy skirt and gloves look like they belong more at a costume party. Her color palette works well though and her character poses gives readers a good understanding of what kind of character she is.
Despite some flaws in her character, Jen is definitely my favorite out the cast. I look forward to supporting the game on kickstarter :D