Oooh, I really enjoyed the demo!
First of all, I really appreciated the art, it was gorgeous and the music! It was perfectly appropriate for the scenes! The in-game GUI (text box and frame around the backgrounds) was also very well done!
Regarding the story, colour me intrigued! I think the game managed to introduce all the LIs and the core characters quite efficiently in such a short amount of time. Aya is also a very great protagonist, and being in her shoes is definitely fun! I won't lie, I'm also intrigued by the trigger warnings and, although we see some glimpses of violence or less sweet content in the demo, I'm curious to see where the story will lead us!
Congrats on a great demo, looking forward to more!