There is one thing that somewhat confuses me about the lore, now that I think about it.
Ayane.
Based off what we've been given on Sensei's feelings for her pre resets:
Sensei simply didn't seem to harbor romantic feelings for her. Sexual feelings? Well, based off New Maya implying she's roleplayed as Ayane before, probably. (He'd basically fuck anything)
Still, even after years of having sex with Ayane, Sensei doesn't really seem to hold her to the level of love that Ami, Maya, Noriko, Niki, and maybe even Chika and Makoto have risen to. Yet he still mentions her alot, cares about how she feels, and even defends her against Maya. He's at least acting like he loves her.
There's just something off about his feelings for her, even for Sensei. The Shapeshifter stuff, and Ayane making it to the roof for some reason, makes things even more strange.
I could just be over thinking things, but at the moment, I kind of see where Ami was coming from here:
It's definitely harsh, but Ayane does seem like an anomaly, even in this game.