Lonely Castle in the Mirror Anime Film Announces 8 Additional Voice Cast Including Yuki Kaji

The official website for the forthcoming anime film adaptation of Mizuki Tsujimura's fantasy novel Kagami no Kojou (English edition title: Lonely Castle in the Mirror) announced eight additional voice cast members today. As reported, 15-year-old actress Ami Touma is cast as the protagonist, Kokoro.

The six children invited to the "world in the mirror" with the protagonist Kokoro are:

Ureshino: Yuki Kaji (Eren Yeager in Attack on Titan)
Rion: Takumi Kitamura (Takemichi Hanagaki in the Tokyo Revengers live-action film)
Aki: Sakura Kiryu (Nagisa Amano in Weathering With You)
Subaru: Rihito Itagaki (Norman in The Promised Neverland live-action film)
Fuuka: Naho Yokomizo (Mayuko in Birthday Wonderland)
Masamune: Minami Takayama (Conan Edogawa in Case Closed/Detective Conan)

In addition, Kumiko Asou (Mother in Mirai) plays Kokoro's mother, while Aoi Miyazaki (Yume Kikuchi in Someday's Dreamers) voices Kitajima, a free school teacher who gently watches over Kokoro.

Message from Yuki Kaji:

"Lonely Castle in the Mirror" is a story that evokes the clumsy and sensitive feelings of junior high school days, which everyone has probably experienced. It is a work in which realistic pain and warmth coexist. For students in particular, I believe it contains many messages that can be delivered only now.

I went into the recording sessions with a sense of tension and responsibility so that the various actors who play the seven children would feel the "significance of my presence as a voice actor." I was happy to be able to work on a film based on Mizuki Tsujimura and directed by Keiichi Hara, of whom I am a fan. I would be happy if you could see this work that is newly born as an animated film in theaters.

⠀⠀ 映画『#かがみの孤城』
✨????第2弾声優キャスト解禁????✨
*::*+*:;;:*+*:;;:*+*:;;:*+*:;;:* +*::*

✦ リオン #北村匠海
✧ アキ #吉柳咲良
✦ スバル #板垣李光人
✧ フウカ #横溝菜帆
✦ マサムネ #高山みなみ
✧ ウレシノ #梶裕貴
✦ こころの母 #麻生久美子
✧ 喜多嶋先生 #宮﨑あおい pic.twitter.com/wmEOzaX1Cl
— 映画『かがみの孤城』公式 (@kagami_eiga) September 19, 2022

Keiichi Hara (Crayon Shin-chan films, Birthday Wonderland)-directed film is set to be released in Japan on December 23, 2022. A-1 Pictures (Anohana: The Flower We Saw That Day, Sword Art Online) works on anime production.

Teaser trailer:

The anime film's official website introduces its story as below:

One day, a mirror in Kokoro's room suddenly began to glow in front of her eyes, as she had lost her place at school and was confined to her room. She walked through the shining mirror to find a mysterious castle-like building. There were seven people in a similar situation to Kokoro. It is said that a secret "key" is hidden in the castle, and whoever finds it will have their wish come true. Why were these seven people gathered together? and where is the key? When everything is revealed, you will be surprised and moved.

Poster visual featuring the protagonist Kokoro: