It's not a difficult question, which of the freshmen will work on navigating the library. Hira is a quick learner, and has more languages than she knows what to do with. The Jaipur upperclassmen walk with her, but the whole point of the exercise is to test and improve her knowledge. Personally, Hira thinks learning to use the library is a waste of everyone's time, but it's impossible to change the Scholomance. The school will do whatever it thinks will help its students, even when this is completely ludicrous and unfounded. Who exactly benefits from a library that changes? Maybe the school saves on mana- she supposes that would explain it. What a prick.
That's why she's wandering the stacks of the library, with her juniors and seniors keeping a respectful distance.