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

Honzuki no Gekokujou: Shisho ni Naru Tame ni wa Shudan wo Erandeiraremasen Dai 3-bu - Ryouchi ni Hon wo Hirogeyou!
本好きの下剋上~司書になるためには手段を選んでいられません~ 第三部 「領地に本を広げよう!」
ko
책벌레의 하극상 제3부 (official)

Prequel

manga
2018
Publishers:
Manga adaptation of Part 2 of Honzuki no Gekokujou. Myne successfully negotiates with the temple to become an apprentice blue shrine maiden, ensuring she will receive the same treatment as a noble. Her work there begins, and after such a long wait, she can finally read in the book room! But the temple's status-based structure and her problematic attendants mean she doesn't have it easy: she'll need to beat society to enjoy her books in peace! This is a biblio-fantasy by book lovers, for book lovers! Part 2, begin! (Source: J-Novel Club) Note: Includes Chapter 22.5, 41.5, 64.5 and 13 extras.

Sequel

manga
2020
Publishers:
Manga adaptation of Part 4 of Honzuki no Gekokujou. Rozemyne has awoken from her two-year slumber. Everything and everyone has changed, which is as terrifying as it sounds, but she doesn’t have time to waste before she’s thrust toward the Royal Academy—a requirement for becoming a noble. There, she will meet all sorts of colorful teachers and students from other duchies... but can she keep her composure in the face of the most books she’s seen yet? Our bookworm goes to school in the newest installment of this biblio-fantasy by book lovers, for book lovers. (Source: J-Novel Club)

Adaptation

novel
2016
Part 3 of Honzuki no Gekokujou. Following a disastrous encounter with a noble, Myne finally resolves to say goodbye to her family and friends in the lower city, changing her name to “Rozemyne” and beginning her new life as the adopted daughter of Ehrenfest’s archduke. However, her days as an archnoble in noble society are brutal, as she is put through rigorous etiquette and magic training on top of her duties as High Bishop and forewoman. It all proves too much for a weak little seven-year-old girl... Or it would have, had the High Priest not offered her the keys to the temple’s book room as a reward. If she could get her hands on those, she’d be able to read all sorts of precious books! Her name may have changed, but Rozemyne’s passion for books remains the same as she charges into a whole new world! The detailed setting expands as the printing industry grows in size. Here begins Part 3 of this biblio-fantasy for book lovers everywhere! (Source: J-Novel Club) Note: This entry covers 105 chapters of the webnovel (chapter 173 - 277).

Side Story

manga
2026
Ferdinand, High Priest at the Temple of Ehrenfest, had three trusted confidants: knight Eckhart, scholar Justus, and attendant Lasfam. They gathered whenever occasion arose, bringing diverse information to share. What follows reveals their true selves—the stories unfolding behind the scenes of the main narrative. Reading this will make you love the world of "Honzuki" even more! This is the start of a series of exquisite bibliophile fantasy stories told from the perspectives of the three who swore loyalty to Ferdinand!! (Source: Corona EX, translated)