Doraemon: New Nobita and the Castle of the Undersea Devil
2026 film directed by Tetsuo Yajima
From Wikipedia, the free encyclopedia
Doraemon the Movie: New Nobita and the Castle of the Undersea Devil (Japanese: 映画ドラえもん 新・のび太の海底鬼岩城, Hepburn: Eiga Doraemon Shin Nobita no Kaiteiki Ganjō) is a 2026 Japanese animated science fantasy film. It is the 45th Doraemon feature film and serves as a remake of the 1983 film Doraemon: Nobita and the Castle of the Undersea Devil. It is directed by Tetsuo Yajima from a screenplay by Isao Murayama.[2][3] It was released in theaters in Japan on 27 February 2026.[4][5]
| Doraemon the Movie: New Nobita and the Castle of the Undersea Devil | |||||
|---|---|---|---|---|---|
Theatrical release poster | |||||
| Japanese name | |||||
| Kanji | 映画ドラえもん 新・のび太の海底鬼岩城 | ||||
| |||||
| Directed by | Tetsuo Yajima | ||||
| Screenplay by | Isao Murayama | ||||
| Based on | |||||
| Starring | |||||
| Music by | Takayuki Hattori | ||||
Production company | |||||
| Distributed by | Toho | ||||
Release date |
| ||||
Running time | 102 minutes | ||||
| Country | Japan | ||||
| Language | Japanese | ||||
| Box office | $23,226,338[1] | ||||
Plot
Disagreeing over where to go camping during summer vacation, Nobita and his friends decide to camp in the middle of the ocean at Doraemon's suggestion! Using their secret gadgets, the "Underwater Buggy" and the "Tekio Light," the five enjoy their undersea camping adventure, encountering various creatures. After discovering a sunken ship, they meet a mysterious young man named El. He turns out to be an "undersea person" who lives in the Mu Federation, which spreads under the sea! The undersea people hate people on land and cannot trust Nobita and his friends. Then they receive news that "Devil's Rock Castle...has begun to move!!" What exactly is this "Devil's Rock Castle" that the undersea people fear...? With faith in their friends, they set off on a great adventure that will determine the fate of the Earth!
Cast
| Character | Japanese voice actor |
|---|---|
| Doraemon | Wasabi Mizuta |
| Nobita | Megumi Ōhara |
| Shizuka | Yumi Kakazu |
| Gian | Subaru Kimura |
| Suneo | Tomokazu Seki |
| Eru | Shōya Chiba |
| Underwater Buggy | Ryō Hirohashi |
| Mu Federation Soldier | Airi Taira |
| Nobita's Mama | Kotono Mitsuishi |
| Nobita's Papa | Yasunori Matsumoto |
Staff
| Original work | Fujiko F. Fujio |
|---|---|
| Director | Tetsuo Yajima |
| Script | Isao Murayama |
| Music | Takayuki Hattori |
Production
Planning and Staffing
Tetsuo Yajima has been selected as the director. He has been largely involved in the Doraemon (2005 TV series) and production of films such as Nobita’s New Great Adventure into the Underworld (2007), Nobita and the New Steel Troops: Winged Angels (2011), and Nobita’s Earth Symphony (2024), and this is his first time of directing a Doraemon film. He commented:
10,928 meters—the deepest point ever reached by mankind. Let’s venture further with Doraemon and his friends! Certainly there are creatures and sceneries waiting for us that no one has ever seen. Aren’t you excited just thinking about it? The choices and decisions they face there may trouble them at times. But hidden among those will surely be ‘unexpected answers.’ To a deep-sea world no one has ever seen before—we look forward to the day we can experience it together on the screen.[4]
The screenplay has been written by Isao Murayama, making his first appearance in the film series. Since 2023, Murayama has written scripts for several episodes of the Doraemon series.[4]
Reception
Box office
Doraemon: New Nobita and the Castle of the Undersea Devil It has grossed $23,226,338 so far and was number one at the Japanese box office for the first six weeks.[6]