Doraemon’s Most Thrilling Underwater Adventure Yet Is Coming to Indian Theaters on October 2 — Everything You Need to Know

Every year, Doraemon delivers a theatrical adventure that sweeps families off their feet — and 2026 is no different. Doraemon: Nobita and the New Castle of the Undersea Devil has already conquered Japan’s box office, and now Indian fans are about to experience the magic firsthand. Mark your calendars: October 2, 2026.

Doraemon x Shinchan Film Overview

What Is the Movie About?

Nobita and friends discover a secret underwater castle packed with mysteries and riches. With Doraemon’s high-tech gadgets, they dive into an ocean adventure mixing humour, teamwork, and imagination in a breathtaking aquatic world. IMDb

The story follows Doraemon and his friends as they meet a sea dweller named El from the Mu Federation and engage in a high-stakes mission to protect the Earth from beneath the ocean. Think ancient civilisations, breathtaking underwater visuals, Doraemon’s iconic gadgets, and the unbreakable friendship between Nobita, Shizuka, Gian, and Suneo — all wrapped up in 102 minutes of pure cinematic joy.

A Remake of a Beloved Classic

This isn’t just any Doraemon film. The 2026 film serves as a remake of the 1983 classic Doraemon: Nobita and the Castle of the Undersea Devil, the fourth instalment in the Doraemon film franchise — a film loosely based on the myth of Atlantis and the legendary lost continent of Mu. Wikipedia

For veteran fans, this is a deeply nostalgic return done with modern animation and fresh storytelling. For younger viewers, it’s a first encounter with one of the most beloved stories in Doraemon history — now reimagined with stunning 2026 production values and even released in 4DX format in Japan for the first time in franchise history.

Japan Already Loved It — Massively

The numbers from Japan speak for themselves. The 45th instalment of the Doraemon film series maintained its position at the top of the Japanese box office for four consecutive weeks as of March 24, 2026. Since its theatrical debut on February 27, 2026, the animated feature earned approximately 25 billion yen, outperforming other major recent releases including the Assassination Classroom movie. Essential Japan

That kind of sustained dominance at Japan’s box office — four straight weeks at number one — is a rare feat that speaks volumes about the film’s quality and emotional resonance.

Special Ending Illustrations Released

Adding to the excitement, the production team released two of nine special illustrations that appear during the film’s closing credits — showing the gang after the conclusion of their adventure. These beautifully drawn images gave fans a heartwarming glimpse of the characters at peace after their journey, with seven more reportedly featuring beloved franchise characters yet to be revealed.

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