Well, I just finished the game so here is my opinion:
I quite liked the designs and characters, I found them quite pretty! And I also quite liked the story and how it gives you little clues of what is really happening; Of course, I would have liked the story part to have been explored more, which is why I feel like it has potential for a longer game. Also at first I felt that the protagonist was too naive and innocent, but then I understood that this plays an important role in the story.
Personally, I would have liked there to be a system to save and load the games, as well as some final image for the different endings, but that is more personal taste.
Final Words: It is a short and simple game, but it is really enjoyable. It can be completed fairly quickly and I would recommend it.