This game is simple, but there are some things that keep it from being my favorite. For one, I understand that the developer is not a native English speaker, and I was able to understand the story for the most part, but there were some points where things were worded in strange ways that made them hard to understand, and there was one point where the text was not translated at all:
Google Translate helped me figure out what this said. Also, why are the '?' upside-down?
I may have misunderstood the controls, too. I think I'm supposed to press Enter to proceed through the text, and not space bar? There were some points where the dialog cuts off in the middle of the characters' thoughts, and I don't know if that's due to the translation or if I was just pressing the wrong button.
For the gameplay itself, it's alright. I like that the controls are simple and the action is quick. Mahouki's normal and magical girl sprites are cute and lively, very fitting for the jam. The music is pleasant, the sound effects sound good. I also appreciate the tooltips that appear when walking in front of buildings so I know to press down instead of up to enter. The bullet hell segments are forgiving but not too easy either; I died a couple of times during my play session, but was able to win after each death. My biggest criticism is the final battle: the animated background is too busy. I was able to see things fine, but I fear for those who may be overwhelmed by all of the motion and color on the screen.
I have mixed feelings about the way the game is laid out. While it was never difficult to get anywhere and there are few areas, so it's hard to get lost, there also is a lot of empty space that you have to backtrack through and areas that are closed off (I suspect this was due to features being cut due to time constraints). I suggest either trimming the areas down and consolidating the relevant parts to a single area or continue developing the game and fleshing out the locked areas.
In summary, this is a quick, simple game that fits the theme well. There are some weaknesses (particularly the translation) that hold it back from being the best it can be, but it's a solid beginning. I could even see it being fleshed out into a longer game if the developer desires.