Here's some feedback (I type as I play, so what I think of the game should come smoothly)
The music is great, and I really like the title screen. One thing I noticed though is that when someone has a lot of text, the text box stretches upward, which makes a giant blank space above the face graphic, which just looks unappealing to me. The menu (especially the status menu) is really cool, although the biography should be a bit larger in text (unless it evolves as the story goes on). In the main house, I don't think you need that door sitting on the edge of the room, unless you remove that second block to the right of it, it looks strange. Now, I'm outside, and I've noticed that your mapping is great, and again, the music sets the mood perfectly. The Time System is a good touch as well. Lol, I think it'd be a good idea to rename 'Pheonix Down' as well, unless this is a final fantasy fan game, or it's just used as a reference to the game... then it's alright. I like how you shrink down the character while in the overworld as well, though overworlds aren't meant to be realistic, at least this is a step toward it. But, the combat is cool by the way that combat initiates by zooming into the character, but it's not very cool when I have to see the enlarged head of the character in the middle of the screen. I also think you should redo the Steal animation, as it looks like a spell, which stealing shouldn't really require magic... unless it does... I think you should remove the tutorial monster as well, or put it a bit earlier, because by the time you actually reach your sister, you most likely would have encountered a monster by then. Or you could turn on encounters only after you've spoken with your sister. The skill system, which took me a while to notice, is great. I feel like the woman in front of the cave was pretty random. I liked the boss fight though, it was difficult, but it was more than just attacking, (I used that snazzy barrier crystal) so you did a good job there. But, the Hyoshin creature was a bit more difficult, though i still came out on top, the shell crystal helped with that. So, I'm thinking items will mean a lot in the sway of battles, which is cool, because I am quite the item hoarder. And... that's where I stopped playing, I had something to attend to.
But, great game, I look forward to more progress indeed.