DORAEMON THE MOVIE: NEW NOBITA AND THE CASTLE OF THE UNDERSEA DEVIL Press Notes and Image Gallery From Toho

Doraemon, Nobita and their friends return to cinemas with the 45th feature film, DORAEMON THE MOVIE: NEW NOBITA AND THE CASTLE OF THE UNDERSEA DEVIL. Photo courtesy of Toho Co., Ltd. © Fujiko Pro/Shogakukan, TV Asahi, Shin-Ei, ADK 2026

Source: Toho Co., Ltd
Official Site: https://doraeiga.com/2026/ (Japan)

Artwork with the movie's English title. © Fujiko Pro/Shogakukan, TV Asahi, Shin-Ei, ADK 2026

Toho Co., Ltd. has provided SciFi Japan with information and high-res images from DORAEMON THE MOVIE: NEW NOBITA AND THE CASTLE OF THE UNDERSEA DEVIL (映画ドラえもん新・のび太の海底鬼岩城, Eiga Doraemon Shin Nobita no Kaiteiki Ganjō), the 45th film in the long running Doraemon franchise. It will open in Japanese theaters on February 27, 2026.

The new movie is a remake of the 4th Doraemon feature film, DORAEMON THE MOVIE: NOBITA AND THE CASTLE OF THE UNDERSEA DEVIL (ドラえもんのび太の海底鬼岩城, Doraemon Nobita no Kaiteiki Ganjō) , which was released in 1983. Described as "a film that took the nation by storm and moved audiences to tears", that classic has been completely reimagined and reborn for a new generation more than 40 years later.

DORAEMON THE MOVIE: NEW NOBITA AND THE CASTLE OF THE UNDERSEA DEVIL is directed by Tetsuo Yajima. This is Yajima's first time directing a Doraemon feature film, though he has worked as a storyboard artist and Unit Director on previous movies as well as the DORAEMON television series. Writer Isao Murayama is also a veteran of the TV Series and wrote the screenplay for the birthday special DORAEMON: THE SECRET TREASURE OF THE SKY CASTLE! ～LEGEND OF THE TRUE HERO~ (ドラえもん天空城の秘宝!～Legend of the True Hero～, Doraemon Tenkū-jō no Hihō!~ Legend of the True Hero～), which aired on September 6, 2025, the same day that NEW NOBITA AND THE CASTLE OF THE UNDERSEA DEVIL was announced as the title for the next movie.

DORAEMON THE MOVIE: NEW NOBITA AND THE CASTLE OF THE UNDERSEA DEVIL will be the first film in the series to be screened in the MX4D and 4DX formats.

Poster for the original 1983 NOBITA AND THE CASTLE OF THE UNDERSEA DEVIL. © Fujiko Pro/Shogakukan, TV Asahi, Shin-Ei, ADK 1983

Teaser poster for the 2026 remake. Photo courtesy of Toho Co., Ltd. © Fujiko Pro/Shogakukan, TV Asahi, Shin-Ei, ADK 2026

Main theatrical poster. Photo courtesy of Toho Co., Ltd. © Fujiko Pro/Shogakukan, TV Asahi, Shin-Ei, ADK 1983

MX4D and 4DX poster. Photo courtesy of Toho Co., Ltd. © Fujiko Pro/Shogakukan, TV Asahi, Shin-Ei, ADK 2026

Photo courtesy of Toho Co., Ltd. © Fujiko Pro/Shogakukan, TV Asahi, Shin-Ei, ADK 2026

STORY

It lies at the very bottom of the ocean—the place closest to the Earth's core.

An unknown world shrouded in mystery! A breathtaking, thrilling, and astonishing undersea adventure awaits!

During summer vacation, Nobita and his friends couldn’t agree on where to go camping, so at Doraemon’s suggestion, they decided to camp right in the middle of the ocean! Using the Secret Gadgets "Underwater Buggy" and "Adaptation Light," the five friends enjoy their undersea camping trip while encountering a fascinating array of marine life.

Their adventure takes a sudden turn when they discover a sunken ship and encounter a mysterious young man named El. To their astonishment, he turns out to be an "Undersea Dweller" living in the vast *Mu Federation* that stretches across the ocean floor! However, the Undersea Dwellers harbor a deep distrust of "Land Dwellers" and cannot bring themselves to trust Nobita and his friends. Amidst this tension, a dire message arrives: "The Great Undersea Castle... has become active!!"

What exactly is this "Great Undersea Castle" that strikes such fear into the hearts of the Undersea Dwellers...?

With unwavering faith in one another, the friends set out on a grand adventure where the very fate of the Earth hangs in the balance!

CREDITS

Japanese Theatrical Release: Friday, February 27, 2025 (Nationwide Roadshow)

Cast
Doraemon: Wasabi Mizuta
Nobita Nobi: Megumi Ohara
Shizuka Minamoto: Yumi Kakazu
Gian (Takeshi Goda): Subaru Kimura
Suneo Honekawa: Tomokazu Seki
El: Shoya Chiba
Underwater Buggy: Ryo Hirohashi
Soldier: Yuki Hirako (Alco & Peace)
Soldier: Kenta Sakai (Alco & Peace)
Soldier: Airi Taira

Staff
Original Concept: Fujiko · F · Fujio
Director: Tetsuo Yajima
Screenplay: Isao Murayama
Music: Takayuki Hattori
Theme Song: “Honto” by sumika (Sony Music Labels)

Production: Doraemon Production Committee (Fujiko Pro, Shogakukan, TV Asahi, Shin-Ei, ADK)
Animation Production: Shin-Ei Animation
Distributor: Toho
International Sales: Shin-Ei Animation

About Toho Co. Ltd.

Toho Company provides high-quality entertainment to a wide range of customers through its film production, distribution, and exhibition business, which is solidly supported by its real estate business including the Shinjuku Toho Building and Hibiya Chante, animation production, DVD software production and sales, and TOHO Cinemas' efforts to expand its network of multiplex cinemas. Among these, "Godzilla," which has been around since 1954, is Toho's flagship IP that has many fans around the world and has been loved for many years.