Urano Motosu, a book enthusiast, meets an untimely demise just as she lands her dream librarian role. With a dying wish to delve into more literature, she reincarnates as Myne, a delicate child in a medieval setting. Faced with a scarcity of books due to manual transcription costs, Myne refuses to yield to this challenge. Determined to indulge in her passion for reading, she sets out to create books from scratch, defying the class barriers that restrict access to written knowledge.