She's pretty used to this with their schooling back home so she takes the book back with only a slight blink of confusion. The title of the page clears things up.

"Rules? Ah! So if I don't read these I could get someone in trouble? That'd be bad. Thanks!"

Her smile lasts about as long as it takes her to finish the first rule. Then a frown appears and only increases as she continues. "But... this isn't fair. My friends are in the other school."