The feature film adaptation of The Apothecary Diaries, titled The Late Lady's Treasure, will open in Japanese theaters on December 11, 2026. To build anticipation, the production team is running a four-day streak of character promotional videos, and the two newest names confirmed are Miyuki Sawashiro and Ai Mikami.
According to the production team, Miyuki Sawashiro will voice the late lady, while Ai Mikami plays the lady's former maid. The two characters share an important connection within the film's storyline.
The character promotional video rollout began on October 14 and runs through October 17, introducing one new character each day. The announcement of the two voice actors is part of a promotional push aimed at keeping fans engaged ahead of the film's release.
The Apothecary Diaries is an anime series adapted from the light novel of the same name by author Natsu Hyuuga, set in an imperial court and centered on Maomao, a gifted female apothecary. The film The Late Lady's Treasure is expected to build on the success of the television series.