I don't really see what the isekai element adds.
I mean, if this plays out like various other isekai manhua (and even some manga like The fed-up OL wants to serve the Villainness), it's going to be about them using their knowledge of the work they're in to find a way to evade the fate the work has placed upon them, in this case likely social ostracization for the villainness and death for the Demon Lord.
But you don't need isekai for that. The villainess already faces ostracization if anyone finds out she's faking her magic; the demon lord already risks a lot because she's a street urchin going to an elite magic school that presumably will contain a bunch of classists. There's plenty of conflict already without adding in a "fate itself is against our protagonists" element.
These stories are built on the proposition that the characters the main duo got transmogrified into are, per se, fictional characters with no agency of their own because they're, again, fictional characters, who are usually static because they exist only at the stroke of a pen of the author and have no inherent agency in and of themselves. The dynamic that these stories have in common would be comparable to say, someone from our world being transmogrified into, say, Prequel-era Anakin Skywalker and using their knowledge of the universe to stop everything that happens at the end of Revenge of the Sith.
But if you want to stick to strictly in-universe logic, I guess you could argue that, because they have a connection they did not have in the original novel from their previous lives (we don't know if there's any relationship between the demon lord and villainness outside of them being antagonists), them being isekai'd gives them the ability to recognize each other as their previous selves and use that connection to find a new forward.
last edited at May 2, 2023 12:24AM