Aoi Miyazaki, Rihito Itagaki, Yuuki Kaji, Sakura Kiryu, Takumi Kitamura, and 3 more join the December 23 film

On Tuesday, new cast members for the anime adaptation of Kagami no Koj by Mizuki Tsujimura were announced on the website for the anime film.

Cast members are: (Top row, left to right in image above)

• Sakura Kiryu as Aki, a cool and collected older sister figure to everybody
• Takumi Kitamura as Rion, a soccer player who easily gets along with everybody
• Aoi Miyazaki as Kitajima-sensei, a kind-hearted teacher at an alternative school
• Rihito Itagaki as Subaru, who seems to show a detached way of living life

(Bottom row, left to right in image above)

• Naho Yokomizo as Fūka, a girl who has lived for the piano since childhood
• Minami Takayama as Masamune, a gamer with a sense of sarcastic humor
• Yuuki Kaji as Ureshino, a boy who goes at his own pace and easily falls in love
• Kumiko Aso as Kokoro’s mother

On December 23, the movie will premiere in Japan.

After trying out for the part, Ami Tma is voicing Kokoro.

The movie is being directed by Keiichi Hara at A-1 Pictures (Colorful, Miss Hokusai, The Wonderland).

The script is being written by Miho Maruo, who also penned the screenplays for Hara’s The Wonderland and Miss Hokusai.

Character design and principal animation director are being handled by Keigo Sasaki (Blue Exorcist, ERASED, The Seven Deadly Sins). Ilya Kuvshinov, a Russian artist, is credited with creating the castle design and character designs for The Wonderland. The soundtrack for Hara’s previous movies was written by Harumi Fuuki, who is back. The film is being distributed by Shochiku.

The book, published in English by Doubleday in April 2021, gives the following synopsis of the plot:

Seven youngsters in a quiet Tokyo neighborhood awake to see their bedroom mirrors gleaming.

A single touch transports them from their lonesome surroundings to a magnificent castle with winding staircases, attentive portraits, and sparkling chandeliers. They come across a series of clues leading to a secret room where one of them will be given a desire in this new refuge. The caveat is that they must leave the castle by five o’clock or they will suffer the consequences.

With passing time, a terrible fact becomes clear: only those who are courageous enough to tell their tales will be rescued.

In 2017, Tsujimura published the original book in Japan. It won the 2018 Japan Booksellers’ Award, came in first place on the 2017 list of Books of the Year published by Da Vinci magazine, and took home the top honor at the 2017 King’s Brunch Book Prize. On October 18, Erewhon will issue a hardback English version of the book.

A live-action film adaption of Tsujimura’s Anime Supremacy! (Haken Anime!) will debut on May 20. In October 2017, Vertical published the book in English.

Additionally, Tsujimura authored the A School Frozen in Time manga by Naoshi Arakawa, which Vertical published in English. The script for the 2019 anime film Doraemon the Movie: Nobita’s Chronicle of the Moon Exploration was written by Tsujimura as well.