Hey Misaki, nice to meet you!
So I've played your game and the first thing I gotta say is that I love the art style, I liked the music too.
Ok, I'm not that a good gamer so it could be just me but I found the game really hard, the concept is good and add interest to the game. One thing you might want to look in is the camera angle, the angle is unique to a 3/2D platformer game and I liked it, but you may want to consider moving the camera to a more vertical-to-the-level angle because with the current angle it's kind of hard to judge depth.
I'll try playing your game again later because I didn't manage to make it that far :P.
Other than that, keep it up because the game has of potential, as I said the concept is good.
Have a good day!