When does The Apothecary Diaries movie premiere? Kusuriya no Hitorigoto: The Deceased Empress' Treasure opens in Japanese theaters December 11, 2026 — a separate original film beside Season 3's TV run.
Current target date: Friday, December 11, 2026 (Theatrical premiere). We update this page when studios or publishers move the window.
The Apothecary Diaries film opens December 11, 2026 in Japan as The Deceased Empress' Treasure — an original Hyūga theatrical story between Season 3's split TV cours.
Theatrical premiere
Friday, December 11, 2026
December 11, 2026 is the Japan theatrical lock — not “sometime in Fall”
The Apothecary Diaries film now has a hard Japan opening: December 11, 2026, under the subtitle Bōhi no Hihō / The Deceased Empress’ Treasure. If a countdown still shows mid-November, it is lagging the July 2026 trailer reveal — re-anchor to December 11 for Japan cinema plans.
Do not merge this with the Season 3 TV countdown
October 2026 starts Season 3’s first TV cour; April 2027 brings the second. The movie sits in the winter gap as its own ticketed event. One franchise, three different calendars — mixing them is how people show up for the wrong format.
How the film sits between the Season 3 cours
- October 2026 — Season 3 cour 1 begins on TV.
- December 11, 2026 — theatrical film opens in Japan (this page).
- April 2027 — Season 3 cour 2 returns on TV.
- International film date — still TBA after the Japan opening.
Hyūga wrote an original film mystery — it is not just “Season 3 but wider”
A lot of hit TV anime get clip-show movies or lightly extended TV arcs. This project was pitched as an original Natsu Hyūga story for theaters, with its own treasure/consort mystery branding. That is why it gets a separate release-date page from the split-cour Season 3 trackers.
Frequently asked questions
Quick answers about this release date.
1When does The Apothecary Diaries movie open?
December 11, 2026 in Japanese theaters. Staff trailers locked that opening day for Kusuriya no Hitorigoto: Bōhi no Hihō (The Deceased Empress’ Treasure). Older “Fall 2026 / mid-November” placeholders on trackers are outdated against that stamp.
2Is the movie the same as Season 3?
No. Season 3 is a split TV run (first cour October 2026, second cour April 2027). The film is a separate theatrical project with an original story by series creator Natsu Hyūga — use the Season 3 pages for TV dates.
3Is the film adapting a light-novel volume beat-for-beat?
Marketing describes an original mystery from Hyūga written for the screen, not “Season 2.5 of the TV cour.” Expect palace intrigue tonally familiar to Maomao/Jinshi fans without treating it as the next numbered TV episode block.
4When does it open outside Japan?
No wide international theatrical or streaming day is confirmed with the December 11 Japan lock. Overseas windows usually follow later — watch distributors, not the Japanese opening, for your local date.
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