The official website of the anime movie adaptation of Mizuki Tsujimura's Kagami no Kojou (The Solitary Castle in the Mirror) revealed two additional cast on Sunday. The movie will premiere in Japan on December 23.

Shingo Fujimori (Eiga de Toujou! Tamagotchi Dokidoki! Uchuu no Maigotchi!?) and Karen Takizawa are joining the cast as Ida-sensei and the school nurse, respectively.

Keiichi Hara (Birthday Wonderland) is directing the movie at A-1 Pictures. Keigo Sasaki (Ao no Exorcist) is the character designer and chief animation director. Miho Maruo (Flanders no Inu (Movie)) is penning the screenplay, and Harumi Fuuki (Piano no Mori (TV)) is composing the music.

The anime movie adapts Tsujimura's fantasy novel, originally published by Poplar Publishing in May 2017. The novel was rereleased as a two-volume paperback edition in March 2021.

A manga adaptation with illustrations by Tomo Taketomi was serialized in Shueisha's Ultra Jump magazine from June 2019 to February 2022. Shueisha shipped the fifth and final volume on May 18.

Source: animate Times