Etoile is a bibliophile,  and her love for the written word extends to her kingdom. She spends most of her time taking care of her expansive library, whether that be by putting away tomes that were left behind by patrons or repairing damaged books. Much of her day is also dedicated to the copying of manuscripts; something she prefers to do by hand.

She is friendly and easy to talk to, and though she may not be the best person to go to for social troubles, she is nearly always willing to help out a person in need, provided they listen to her advice. One of the downsides to her very rarely leaving her kingdom is that she's developed a bit of a controlling persona, and she rapidly becomes irritated when things do not operate according to her standards.

Many who visit her kingdom do so with the intention of self reflection or finding something, as she has the ability to take perfect copies of one's entire memory down into a book. Said books are capable of listing down things that even the original owner may have long forgotten, so you must exercise caution not to dredge up old painful memories.