Ascendance of a Bookworm ~I'll do anything to become a librarian!~ Part 3 Let's spread books through the duchy!

Manga adaptation of Part 3 of Honzuki no Gekokujou . To protect those she cares about from danger, Myne abandons the life she knows to become Rozemyne, the archduke’s mana-rich adopted daughter. But her passion for books hasn’t changed, nor does she hesitate to charge into another strange new world.