It was a pretty well made game overall! The lore and the world you've built up is genuinely intriguing and really amps up the unstoppable force that Hayami-chan is. Even the dialogues help elevate her danger and thrall more.
I initially thought that the day part went way too long, but after playing the first game, I think it could have been sped up by hovering over the TV; not sure though.
But the work that's gone into the game, in making the story, the surroundings and the dialogues are pretty cool! The knife ending was an intricate and nice touch to add to the mystery and shake things up as well!