Kusuriya no Hitorigoto: Bouhi no Hihou

Kusuriya no Hitorigoto: Bouhi no Hihou, titled in English as The Apothecary Diaries: The Secret Treasure of the Consort, emerged in 2026 as the first feature-length film adaptation within the acclaimed series. Produced by Toho, the film expands upon the narrative scope established by the successful television animation, moving the protagonist Maomao into a cinematic exploration of imperial secrets. The production aimed to retain the aesthetic identity of the source material while utilizing a larger theatrical budget to enhance the intricate details of the court settings.

The film was developed to leverage the series' popularity following the success of the 2023 anime adaptation of Natsu Hyuga's light novels. By focusing on the 'Secret Treasure' narrative arc, the creative team sought to balance the established mystery-solving genre with higher-stakes dramatic pacing suitable for a theatrical release. Upon its release, it was received as a natural extension of the franchise, lauded by critics and fans for its faithful character characterization and elevated visual production values.