During a panel at Anime Expo 2025, Yomiuri TV unveiled a trailer and key visual for Ascendance of a Bookworm: Adopted Daughter of an Archduke (Season 4). WIT Studio is animating the upcoming season and has confirmed that the anime will air in spring 2026.
Check out the trailer below:
Miya Kazuki released the Ascendance of a Bookworm novels from 2013 to 2017 on the Shōsetsuka ni Narō website. You Shiina illustrates the print edition. The main series concluded with its 33rd volume in December 2023, which has sold more than 11 million copies.
The series also got a manga adaptation in 2019. Suzuka illustrated part 1, which ran from October to July 2018. Part 2 began in September 2018 and is also illustrated by Suzuka, while Part 3 started in April 2018 and is illustrated by Ryo Namino. Parts 2 and 3 are currently ongoing.
In October 2019, the light novel received its anime adaptation. The first season of the anime aired in 2019, followed by a second season in 2020, and a third season in 2022.
The entire anime series is available on Crunchyroll. Here’s a description of the anime series via Crunchyroll:
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 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.”
