It Seems I’ve Transmigrated Somewhere

I love romance fantasy novels, and I even got transmigrated into one. “Anyway, which book have I transmigrated into?” I think I’ve read about twenty books that had brown-haired maids with freckles, about twenty books with a southern lady who marries a cold-hearted duke from the north, and there seems to be more books with black-haired male leads and blonde female leads? “Wait, is it even true that I’ve transmigrated as the female lead?” No, I think it might not even be a romance fantasy to begin with? Where am I, and who am I? (Source: KW Books, translated)