Witch Hat Atelier & Ascendance of a Bookworm Join Forces in Collaboration Visual

A special collaboration visual of Ascendance of a Bookworm: Adopted Daughter of an Archduke and Witch Hat Atelier has been released, spotlighting the respective main characters of both series. 

The characters featured in the collaboration visual include Ascendance of a Bookworm’s Rozemyne and Ferdinand and Witch Hat Atelier’s Coco and Qifrey. 

The Witch Hat Atelier TV anime adaptation began broadcasting in Japan on April 6, 2026. Crunchyroll licensed the anime series for exclusive streaming outside Asia, while Netflix is streaming the series in “select regions of Asia.” 

Ayumu Watanabe (Summer Time Rendering, Fortune Favors Lady Nikuko, Children of the Sea) is directing the anime series, with Kairi Unabara (Magical Girl holoWitches! main trailer co-character designer, The Invisible Man and His Soon-to-Be Wife) as character designer, Jun Shinohara (Zom 100: Bucket List of the Dead Episode 3 and 12 storyboard artist and director) as assistant director, Hiroshi Seko (Jujutsu Kaisen) as series composer, Ryota Goto as background art director, Naomi Nakano (Chainsaw Man) as color designer, Tadashi Kitaoka (Love Live! Superstar!!) as composting director, and Yuka Kitamura (Sekiro: Shadows Die Twice composer, Elden Ring and Dark Souls 3 co-composer) as music composer. BUG FILMS is in charge of the animation production.    

The fantasy manga series by Kamome Shirahama began serialization in Kodansha’s Monthly Morning Two magazine on July 22, 2016 and has released 16 tankobon volumes as of April 2026. Kodansha USA releases the manga in English and was named “Best Manga” at the 37th Harvey Awards. 

Kodansha USA licensed the Witch Hat Atelier manga series for English release, and describes the main synopsis as:

In a world where everyone takes wonders like magic spells and dragons for granted, Coco is a girl with a simple dream: she wants to be a witch. But everybody knows magicians are born, not made, and Coco was not born with a gift for magic. Resigned to her un-magical life, Coco is about to give up on her dream to become a witch … until the day she meets Qifrey, a mysterious, traveling magician. After secretly seeing Qifrey perform magic in a way she’s never seen before, Coco soon learns what everybody “knows” might not be the truth, and discovers that her magical dream may not be as far away as it may seem…

Ascendance of a Bookworm: Adopted Daughter of an Archduke first premiered in Japan on April 4, 2026. It is the fourth season of the Ascendance of a Bookworm TV anime series. The first season debuted in Japan in October 2019. Crunchyroll is streaming the anime’s previous seasons in select countries and territories worldwide. 

Yoshiaki Iwasaki (Kowloon Generic Romance) is directing the fourth season, with Mariko Kunisawa (The Dinner Table Detective) as series composer and Aiko Minowa as character designer. WIT STUDIO is in charge of the animation production, which takes over from Ajia-do, who produced the previous three seasons.  

Ascendance of a Bookworm: Adopted Daughter of an Archduke adapts the third part of the isekai fantasy light novel series written by Miya Kazuki and illustrated by You Shiina. The series was first published in 2013 on Shosetsuka ni Naro before being physically published as a light novel by TO Books from January 25, 2015 to December 9, 2023. A total of 33 volumes were released in Japan. 

The series has inspired spin-offs, short story collections, and manga adaptations, as well as a sequel light novel series in April 2017. 

J-Novel Club licensed both the light novel and manga for English release. It describes the first volume of the novel series’ third part as:

Following a disastrous encounter with a noble, Myne finally resolves to say goodbye to her family and friends in the lower city, changing her name to Rozemyne and beginning her new life as the adopted daughter of Ehrenfest’s archduke. However, her days as an archnoble in noble society are brutal, as she is put through rigorous etiquette and magic training on top of her duties as High Bishop and forewoman. It all proves too much for a weak little seven-year-old girl… Or it would have, had the High Priest not offered her the keys to the temple’s book room as a reward. If she could get her hands on those, she’d be able to read all sorts of precious books! Her name may have changed, but Rozemyne’s passion for books remains the same as she charges into a whole new world! The detailed setting expands as the printing industry grows in size. 

Sources: Witch Hat Atelier Official Twitter, Crunchyroll News