A new trailer has also been released for the upcoming anime.
The popular and unique isekai anime series Ascendance of a Bookworm is coming back! During the Anime Expo panel on Saturday, 5 July, Yomiuiri TV released a new trailer and visual for the fourth season of the series. Titled Ascendance of a Bookworm: Adopted Daughter of an Archduke, the upcoming series will cover the third part of the light novel series. The season is set to premiere in Spring 2026.
Ascendance of a Bookworm: Adopted Daughter of an Archduke details
So far, we only know about the Spring 2026 release window, as no specific premiere date was revealed. WIT Studio will be producing the upcoming season with Mitseru Hongo as director. Mariko Kunisawa is the series composer while, Yoshiaki Yanagida, Toshihisa Kaiya and Haruka Matsunae design the characters. Michiru is the music composer for the series.
The main cast is returning to their roles for the fourth season. This includes:
- Rozemyne/Main/Myne voiced by Yuka Iguchi
- Ferdinand voiced by Show Hayami
- Tuuli voiced by Megumi Nakajima
- Effa voiced by Fumiko Orikasa
- Gunther voiced by Tsuyoshi Koyama
- Lutz voiced by Mutsumi Tamura
- Otto voiced by Satoshi Hino
- Benno voiced by Takehito Koyasu
- Mark voiced by Tomoaki Maeno
- Gustav voiced by Hiroshi Naka
- Freida voiced by Aya Uchida
- Gil voiced by Yūko Sanpei
- Fran voiced by Shō Karino
- Delia voiced by Chiyo Tomaru
- Ralph voiced by Hitomi Nabatame
- Sylvester voiced by Kazuhiko Inoue
The anime is based on the popular light novel series written by Miya Kazuki and illustrated by You Shiina. A manga adaptation by Suzuka has also been published. Crunchyroll streams the first three seasons of the anime and describes the story as:
Avid bookworm and college student Motosu Urano ends up dying in an unforeseen accident. This came right after the news that she would finally be able to work as a librarian like she had always dreamed of. When she regained consciousness, she was reborn as Main, the daughter of a poor soldier. She was in the town of Ehrenfest, which had a harsh class system. But as long as she had books, she didn't really need anything else. However, books were scarce and belonged only to the nobles. But that doesn't stop her, so she makes a decision... "If there aren't any books, I'll just create some."
