This was a good game with absolutely beautiful art and an interesting story that left me wanting for more. I liked it quite a lot, but there were a few bugs. It looks like you might continue this in the future, so here they are in case you want to fix them:
1. While going up the stairs, I somehow accidentally walked into the wall and could walk through it. I did manage to get out though.
2. The collisions felt a just a bit weird, like they didn't fit perfectly with the environment.
3. There were some overlapping issues where Maia was over things she shouldn't be.
4. You can go off screen and completely loose Maia.
5. I was able to accidentally interact with things while already interacting with something. Ex: opening the code for the chest while I was still looking at the fortune teller thing.
Additionally, in an isometric game, moving in the usual four directions can be a bit annoying when most of the time, you're moving diagonally. Also, I'm not sure if you're allowed to use another game's music in your own game. For me, the genshin impact music didn't really fit as it sounded happy, when the game seems to have more sad themes. But it could also just be that I'm biased and am used to hearing the song in the context of genshin impact.
Otherwise, the game has a lot of potential and I'd be interested in seeing it continued!