The upcoming Ascendance of a Bookworm: Adopted Daughter of an Archduke (Season 4) has released a new trailer, featuring the opening theme song “Pages” by Little Glee Monster. The anime previously previewed the ending theme song “Ima mo, Arigato” by Erika Ikuta.
Ascendance of a Bookworm: Adopted Daughter of an Archduke is scheduled to air for two consecutive cours beginning on April 4. The story follows Rozemyne, a girl reincarnated into the noble society of Ehrenfest where only nobles possess magical power. As she continues her efforts to create books in a world where they are scarce, her overwhelming magical abilities begin getting attention.
The new trailer features both of the songs, and you can watch it below.
The main voice cast includes Yuka Iguchi as Rozemyne and Sho Hayami as Ferdinand, while the staff for the new season includes:
- Director: Yoshiaki Iwasaki
- Series Composition: Mariko Kunisawa
- Character Design: Aiko Minowa
- Music: Michiru
- Animation Production: WIT STUDIO
Ascendance of a Bookworm is a light novel series written by Miya Kazuki and illustrated by You Shiina. It was first serialized on the Shosetsuka ni Naro website from September 2013 to March 2017 before being published in print by TO Books starting in January 2015.
The anime adaptation first aired in 2019, followed by additional seasons in 2020 and 2022. The new installment adapts the Adopted Daughter of an Archduke arc.
Source: Ascendance of a Bookworm Official Website, AnimeJapan 2026
© Miya Kazuki,TO Books./Ascendance of a Bookworm Project 2026
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