Ascendance of a Bookworm

Ascendance of a Bookworm
	First light novel volume cover, featuring Myne
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～; (Honzuki no Gekokujō: Shisho ni Naru Tame ni wa Shudan o Erandeiraremasen)
Genre	Fantasy, isekai
Novel series
Written by	Miya Kazuki
Published by	Shōsetsuka ni Narō
Original run	September 23, 2013 – March 12, 2017
Light novel
Ascendance of a Bookworm
Written by	Miya Kazuki
Illustrated by	You Shiina
Published by	TO Books
English publisher	NA: J-Novel Club;
Imprint	TO Bunko
Original run	January 25, 2015 – December 9, 2023
Volumes	33
Novel series
Hannelore's Fifth Year at the Royal Academy
Written by	Miya Kazuki
Published by	Shōsetsuka ni Narō
Original run	April 28, 2017 – present
Light novel
Short Story Collection
Written by	Miya Kazuki
Illustrated by	You Shiina
Published by	TO Books
English publisher	NA: J-Novel Club;
Imprint	TO Bunko
Original run	October 10, 2019 – present
Volumes	3
Light novel
Hannelore's Fifth Year at the Royal Academy
Written by	Miya Kazuki
Illustrated by	You Shiina
Published by	TO Books
English publisher	NA: J-Novel Club;
Imprint	TO Bunko
Original run	August 10, 2024 – present
Volumes	1
Manga
Part 1; Part 2; Part 3; Part 4; Part 5;
Written by	Miya Kazuki
Illustrated by	Suzuka (P1–2, 5); Ryo Namino (P3); Hikaru Katsuki (P4);
Published by	TO Books
English publisher	NA: J-Novel Club;
Imprint	Corona Comics
Magazine	Comic Corona
Original run	October 30, 2015 (P1); September 24, 2018 (P2); April 30, 2018 (P3); December 24, 2020 (P4; August 10, 2024 (P5); – July 2, 2018 (P1); August 25, 2025 (P2); present (P3–4);
Volumes	7 (P1); 13 (P2); 9 (P3); 11 (P4; 1 (P5);
Anime television series
Ascendance of a Bookworm (S1–3); Ascendance of a Bookworm: Adopted Daughter of an Archduke (S4);
Directed by	Mitsuru Hongo (S1–3); Yoshiaki Iwasaki (S4);
Written by	Mariko Kunisawa
Music by	Michiru
Studio	Ajiado (S1–3); Wit Studio (S4);
Licensed by	Crunchyroll (streaming); NA: Sentai Filmworks (home video; S1–2 only); SA/SEA: Muse Communication; ;
Original network	Tokyo MX; ABC TV (S1–2); Wowow, BS Fuji, AT-X (S1–3); ytv (S3); NNS (ytv, Nippon TV) (S4);
Original run	October 3, 2019 – present
Episodes	36 + 2 OVA

Ascendance of a Bookworm (Japanese: 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～, Hepburn: Honzuki no Gekokujō: Shisho ni Naru Tame ni wa Shudan o Erandeiraremasen; lit. 'Ascendance of a Bookworm: I'll Stop at Nothing to Become a Librarian'), also known as AoaB or Honzuki (本好き) for short, is a Japanese light novel series written by Miya Kazuki and illustrated by You Shiina. It was serialized online from September 2013 to March 2017 on the user-generated novel publishing website Shōsetsuka ni Narō. It was later acquired by TO Books, who published it in thirty-three volumes from January 2015 to December 2023.

A manga adaptation of the first part with art by Suzuka was serialized online via the Niconico Seiga website from October 2015 to July 2018. It was collected in seven tankōbon volumes by TO Books. Both the light novel and manga are published in English by J-Novel Club. An anime television series adaptation produced by Ajiado aired the first season from October to December 2019, and the second season aired from April to June 2020. A two-part OVA episode was released in March 2020. A third season aired from April to June 2022. A fourth season produced by Wit Studio is set to premiere in April 2026.