Lonely Castle in the Mirror Anime Film Releases Full Trailer With Yuuri Theme Song

The official website for the upcoming anime film adaptation of Mizuki Tsujimura’s fantasy novel Kagami no Kojou (English edition title: Lonely castle in the mirror) posted a full two-minute trailer with the theme song “Merry-go-round” sung by the singer-songwriter Yuuri.

The film is set to be released in Japan on December 23, 2022. Keiichi Hara (Pencil Shin-chan movies, birthday wonderland) holds the position of director and Pictures A-1 (Anohana: the flower we saw that day, Sword Art Online) is working on anime production.

RELATED: Lonely Castle in the Mirror Animated Film Trailer Reveals Protagonist’s Voice




Full 2 ​​minute trailer:



Message from Yuuri:

I am very happy to have been chosen to sing the theme song for the animated feature film “Lonely Castle in the Mirror”. The theme song “Merry-Go-Round” is a song about loving those you love who have been separated from you, expressing the growth and thoughts of each of the seven children depicted in the film. I hope everyone who has seen the movie will feel the theme song “Merry-Go-Round” in their own way, and that this song will accompany you in your future not alone.



Four additional voices are also announced:

  • Akiko Yajima (Relena Peacecraft in Mobile Suit Gundam Wing)
  • Karen Miyama (Ichika Usami / Cure Whip in Fashionable Kirakira PreCure)
  • Anji Ikehata (model / her first anime role)
  • Ayaka Yoshimura (child actress / her first anime role)




Main poster visual:




The novel was published by Poplar Publishing in Japan in May 2017 and its total circulation exceeded 1.2 million copies. The manga adaptation of the novel illustrated by Tomo Taketomi was serialized in Shueisha’s Ultra Jump from June 2019 to February 2022.

The official website of the animated film present his story as below:

One day, a mirror in Kokoro’s room suddenly shone 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 in 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 all is revealed, you will be surprised and moved.

RELATED: Mizuki Tsujimura’s Lonely Castle in the Mirror Fantasy Novel Gets an Anime Film Adaptation in Winter 2022



Source: Official website of the animated film “Lonely Castle in the Mirror” / Twitter

© 2022 “Lonely Castle in the Mirror” Production Committee