I like how the author's work in transitioning the story without lines. But yep, the story didn't do well in impactful thing. The case with her being protected from being stabbed is just too easy to predict so it just went and left. It's not bad writing. But yet, not having much impression so the ending very much just have to be ended like this. There was no other way because there haven't had much option because of the narrow perspective choice of plot.
I recommend reading ao ni nare. I did cried because the mc's incident