Ascendance of a Bookworm (Honzuki no Gekokujō) is getting a Part 4 anime. On October 3, 2026, the same day the Part 3 anime aired its finale, the staff announced that the next chapter in the story of book-obsessed Myne, now Rozemyne, is coming to TV, with Wit Studio animating again. For fans who have followed the series since 2019, it is the most welcome news of the season.
Quick facts
| Item | Details |
|---|---|
| Series | Ascendance of a Bookworm (Honzuki no Gekokujō) |
| Part adapted | Part 4: Founder of the Royal Academy’s So-Called Library Committee |
| Studio | Wit Studio |
| Announced | October 3, 2026, the day the Part 3 anime ended |
| Premiere | Not announced |
| Where to watch (Part 3) | Crunchyroll, subtitled and English dub |
What is Part 4 about?
Part 4 is titled “Founder of the Royal Academy’s So-Called Library Committee” (Kizoku-in no Jishō Tosho Iin). After becoming the archduke’s adopted daughter in Part 3, Rozemyne enters the Royal Academy for noble children. As the title suggests, she is still a girl who will do anything to be near books, including appointing herself founder of a “library committee.”
The Part 3 anime just wrapped after half a year
The Part 3: Adopted Daughter of an Archduke anime premiered on April 4, 2026 on Yomiuri TV and NTV at 5:30 p.m. JST, ran for two consecutive cours over half a year, and ended on October 3. Yuka Iguchi returned as Rozemyne (formerly Myne) and Show Hayami as Ferdinand. New cast members included Minami Takayama (Florencia) and Kazuhiro Yamaji (Bonifatius).
It also marked a staff change. Yoshiaki Iwasaki, director of Kowloon Generic Romance, Hayate the Combat Butler and We Never Learn, replaced Mitsuru Hongō as director at Wit Studio. Mariko Kunisawa returned to write the scripts, Aiko Minowa took over character design, and MICHIRU returned to compose the music.
Bookworm’s anime journey so far
- Season 1: October to December 2019, 14 episodes.
- Season 2: April 2020.
- Season 3: April 2022.
- Part 3 (Wit Studio): April to October 2026, two consecutive cours.
- Part 4 (Wit Studio): confirmed, no date yet.
The original is Miya Kazuki’s web novel, serialized on Shōsetsuka ni Narō from 2013 to 2017, then published as light novels illustrated by You Shiina. The main series ended with 33 volumes in December 2023 and has more than 13 million copies in circulation.
Where to watch Ascendance of a Bookworm
Crunchyroll streams the Part 3 anime with English subtitles and an English dub, and streamed all three earlier seasons as they aired. It is the easiest way to catch up before Part 4 arrives.
OtaHub’s take
Keeping Wit Studio is a good sign. Part 3 changed its director and character designer, a big shift for a show that had already run three seasons. Confirming the same team the moment Part 3 ended suggests the committee is happy with the new direction. Part 4 is also the arc many fans have waited for: the academy setting opens up a whole new noble world, a large cast of new characters and a noticeably faster pace than the early parts.
The open question is timing. Part 3 took two cours for one part of the novels, so if Part 4 follows the same pattern, it will likely be a long project too. There is no word on a broadcast year yet.
FAQ about Ascendance of a Bookworm Part 4
When does Ascendance of a Bookworm Part 4 premiere?
No date has been announced. The October 3, 2026 announcement only confirmed that Part 4 will get a TV anime from Wit Studio.
Which studio is animating Ascendance of a Bookworm Part 4?
Wit Studio, the same studio behind the Part 3 (Adopted Daughter of an Archduke) anime that premiered on April 4, 2026 under director Yoshiaki Iwasaki.
Where can I watch Ascendance of a Bookworm?
Crunchyroll streams the Part 3 anime with English subtitles and an English dub, and streamed all three earlier seasons as they aired.
How many volumes does the Ascendance of a Bookworm light novel have?
The main series ended with 33 volumes (volume 12 of Part 5) in December 2023. It is written by Miya Kazuki and illustrated by You Shiina, and has over 13 million copies in circulation including digital.
Sources: Ascendance of a Bookworm official anime website, Comic Natalie, Anime News Network.