I'm pretty sure actual Nanase prefers the books, but this is Grace's dream, so... Yeah.
Also, possible, but how much you wanna bit things will be THAT convenient?
Not much else I have to say about this comic other than if I had known I'd decide to have Nanase and Sarah stick around, I probably would've given Nanase a longer robe. Or pants. Glorious pants with lots of pockets.