I'm a librarian who loves anime, manga, and reading a wide variety of genres.
Antuniet describes a thing she did with a charm designed to tell you the name of your true love:
"'And your true love was a book?' Jeanne asked."
Ha, no, she modified the charm to help her identify the thing in a room that would be most useful to her, and then used it to find books. I approve. (But dang it would have been great if her true love had been a book.)