The official website for the Brave Witches television anime series announced on Monday that the unaired 13th episode of the series will premiere on May 13 in 11 theaters across Japan.
The 12th and final episode of the anime announced the screening of the 13th episode in December.
The episode is titled “Petersburg Dai Senryaku” (Petersburg Great Strategy), and the story takes place between episodes seven and eight.
In December, Eila Ilmatar Juutilainen and Sanya V. Litvyak of the 501st Joint Fighter Wing are carrying supplies to the 502nd Joint Fighter Wing.