the sprites are really gorgeous and it has some neat music, but like the guy below me said, lolita knight is too op. maybe you should take a look at the knight class in etrian odyssey 4 (fortress), it would start with a similar skill that only increased the chances of it getting hit, so the risk would still be there. and as the game progressed, it would end up getting a skill that protected the entire team for 1 turn with a high mp cost.
another thing that annoyed me was that npc dialogue would trigger everytime i stepped on their respective tile. also, it would be a nice QOL improvement if you could see your party's stats and equipment in each shop.
really cool demo though, love the creativity put into it. looking forward to the finished game :)