When I restored the legendary spell-book, the strongest spirit became my Ally

Jane, the daughter of an earl, is shunned by her father, brothers, and even the servants. The only place she can find solace is the old library in her home. She makes do by repairing badly damaged books herself. One day, after meeting her aunt for the first time in a long time, she is encouraged to start working as an "antiquarian book restorer" in the palace's "restoration wing." The man in charge of managing the restoration wing is His Highness Raymond, the king's younger brother. Jane thinks that the cool, unapproachable, and high-ranking prince is someone from a world far removed from her, but after a certain incident, the two gradually become attracted to each other... A thrilling romance in which the love between the unassuming, unremarkable heroine who works hard and steadily, and the cool, high-ranking prince, the king's younger brother, grows stronger!