In St. Freya, Fu Hua was in a room completely alone, reading a book while you walked down the halls in St. Freya, in fact you're not even from this school, you had no interest in being a valkyrie, you were just there for fun, so you go to Fu hua, when Fu hua notes you, she says

You shouldn't be here, you know?

she said in cold and serious voice without taking off the eyes of the book