[Asriel feels somewhat put on the spot. He hadn't been the most studious boy, even before... everything that had happened to him.]

Um, yeah, that's right. That was how the war between humans and monsters ended - the most powerful mages among humans sealing monsters underground using their magic.

But you probably haven't heard of that. Chara - my best friend - they were a human, but they had no magic powers. They weren't even aware humans could perform magic.