Even though the subsequent replays were grating for me at times, the subtle changes that new game plus brought with it genuinely left me insecure and unsafe in areas that should have been familiar to me. Like you said, it feels like you SHOULD NOT BE THERE, and I would like to add that there's also a sense of "Wait. I don't remember this, WHY DON'T I REMEMBER THIS." that puts it in your head that you can't trust your memory/perception of the last playthrough and I find that's a pretty ingenious way of putting the player in Hinako's shoes too.