The official website for the Kusuriya no Hitorigoto (The Apothecary Diaries) anime series has revealed key updates for its upcoming theatrical feature, confirming a December 11 premiere date in Japanese cinemas. Subtitled Bouhi no Hihou (The Secret Treasure of the Deceased Consort), the movie expands upon the intricate court intrigue and pharmacological mysteries that defined the television broadcast.
Alongside the release window, production committees unveiled a robust lineup of new voice talent joining the cast. The newly announced cast members and their respective roles include:
- Nobuo Tobita as Birou
- Kumiko Watanabe as Shuu-u
- Hirofumi Nojima as Bisen
- Kensho Ono as Suija
- Ryouta Takeuchi as Eishou
- Jirou Saitou as Kaja
The feature film is anchored by an elite creative roster at TOHO animation STUDIO and OLM. Norihiro Naganuma directs the project, with scripts penned by Yuuko Kakihara. Character designs and chief animation direction are managed by Yukiko Nakatani. Meanwhile, an extraordinary triad of composers—Satoru Kousaki, Kevin Penkin, and Alisa Okehazama—are collaborating to build the film's auditory landscape.
The cinematic project follows the massive success of the television runs, with the first and second seasons airing across Fall 2023 and Winter 2025. Natsu Hyuuga's original light novel series, which began publication via Hero Bunko in 2014 with illustrations by Touko Shino, continues to expand worldwide alongside its dual manga adaptations by Nekokurage and Minoji Kurata.
To celebrate the upcoming theatrical debut, the official channels released two specialized character previews:
Character Trailer (Bi clan ver.)
Character Trailer (Kajadan ver.)



