I really love the characterization in this story, I feel like the characters are really alive and I can understand well what kind of personality each of the characters have through the art and storytelling. I feel the writer and artist really put a lot of care to make sure the characters are realistic, relatable and able to make us attached to them, even with a short time.
And [SPOILER ALERT] when the truth was revealed, the game managed to break my heart through its tragic backstory and its music. I think it's also really interesting who the real identity of the 1st demon really is. Is it because she is the one trying to make her realize the truth and face reality, and since the protagonist still wants to live in her own imagination and is unable to cope with the truth, so she depicts her as a threat? I'm not sure, if anyone has different theory, please let me know :) I also love how the friend didn't immediately disappear when the main char found out the truth, as it's a more realistic approach of depicting the condition. The important thing is that the main char realized the truth, and is learning to cope and accept it, and that is enough.
I think overall, it's a simple, artistic, and creative short vn, with a satisfying ending and backstory that really made the game worth to try. Really love the game, and I'm waiting for more in the future! c: