It's easy to forget in these stories since so many authors dispense with it before the end of the chapter 1, but at the end of the day these are in fact teenagers at school, with all the hormone and immaturity driven drama, insecurities, competitiveness etc that can entail. However much those of us decades away from it can look at it with hindsight as silly it doesn't necessarily seem that way in the moment. Admittedly it's a fine balance and I don't know how well the author will do with it, but it doesn't inherently bother me if for once a normal teen actually kinda acts like a normal teen. Natori of course is a working adult albeit a young one, and Lapis has faced an unusual level of loss, responsibility and expectations since a very young age. I don't dislike someone normal just being normal though in a story like this and it doesn't inherently make them stupid or a villain. We'll see how it gets executed on of course.What a massive idiot if she really goes through it.
Sure, though fwiw Natori is old enough and has seen at least some of the darker part of the working world after school to have some appreciation for social status, at least inasmuch as it help secure a good position. Of course it's not everything, but one can't eat or pay rent on purity alone.She should very well know that social status is something Natori doesn't care about in the least.
But as much as anything it's not actually about Natori but Diana's own self-respect. She desires to be someone she herself feels is worthy, and at this stage of her life she doesn't actually have that much solid yet (which is normal!). Yeah she's gotten into a good school and put in some real work, but it's completely understandable if she feels insecure in the face of someone like Lapis. It's not even inherently a bad thing to want to push oneself and accomplish great things, though of course in this case she may end up on the wrong path there.
Eh, at that age "I want to solve things myself not go to authority" is something that happens. Plus part of the trick here is that he has both truth and an arguable point: there really is a revolt brewing, and Diana really is uniquely positioned. If a commoner given tons of shit from nobles helped resist a revolt against the system that's going to be a different narrative. That it would be an accomplishment on top is part of the temptation. Gran is someone she's now worked with, but unlike in the original story they aren't close here, he's not a confident. Lapis is an object of admiration and learning, but also somewhat unapproachable and not someone Diana is exactly sharing a bunk bed with. That itself is another possible issue, does Diana even have any close friends at the school? Here we also see the teachers potentially harboring some disdain she'd notice. The changes Natori has started may ironically have left the original heroine more isolated.Plus, It's such a transparent manipulation method, commoner or not, and ultimately she's in good graces with Lapis and Gran so it's not like she's without options or connections. She should be running to tell them what happened, specially to Gran aka the fucking Prince.
Author may screw it all up and it could have used more fleshing out and build up, things do kinda feel rushed along. But I'm not going to dismiss it out of hand either.