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Kaiju Decode “The Ring of Aidara” anime film announces main cast and additional staff

October 21, 2025
Coco in the new key visual.
Aya Yamane and Karin Takahashi join the cast (Image: Tsuburaya Productions, Toei Animation).

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The anime film is yet to reveal a premiere date.

The upcoming kaiju-themed Kaiju Decode: The Ring of Aidara anime film, which is a CG project jointly produced by Tsuburaya Productions and Toei Animation, has revealed its main cast, additional staff, a special promotional video, and its second key visual. 

Here's the second key visual:

Here's the special promotional video:

Kaiju Decode: The Ring of Aidara cast, staff and more

The two lead characters for the film are:

  • Aya Yamane as Maru
  • Karin Takahashi as Coco

While the additional staff members are:

  • Script: Katsuie Shibata
  • Character design: Sei Nakashima, Masatsugi Saitou
  • Monster design: Masayuki Gotou

Kouichi Noguchi is the producer of the series. Ichirou Kutome Design Studio is in charge of the direction and design.

The first Kaiju Decode 3DGC project, produced by ARECT and animated by Tsuburaya Productions and Toei Animation, came out back in 2021. A virtual reality game titled Kaiju Decode: Super Multiverse MR came out in 2024. 

According to the official website of the Kaiju Decode: Aidara no Yubiwa anime, the series’ story is (machine translated):

In 2070, the effects of a supernova explosion caused several space stations to crash, causing extensive damage to Earth.
This accident was called the "Skyfall Disaster." As a result of the disaster, unknown bacteria arrived from space, eroding or assimilating matter on Earth and creating new life forms, and transfinite organisms.

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