@Eonlars
Not only that spoiler from Chuchlain, it also comes with information from "taboo skill". In short, it basically only gave her information about the past of this world.
In manga she actually take it quite mildly... in novel she was on the verge of throw up, she absolutely despise every single human of this world, and was actually thought about going on murdering spree right now, not even for exp, for the sake of murdering spree
Well, not only for murdering spree, but anymore than that would be major spoiler. Anyway, tl;dr, that after acquiring information from "taboo" skill, she doesn't think that dwellers of this world have any human rights, or even right to call themselves "human"