Nobita and friends finds a secret underwater castle packed with mysteries and riches. With Doraemon's high-tech gadgets, they dive into an ocean adventure mixing humor, teamwork, and imagination in a breathtaking aquatic world.
Made in JP
7.8/10
2026
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Cast
Wasabi Mizuta
As Doraemon (voice)
Megumi Oohara
As Nobita (voice)
Yumi Kakazu
As Shizuka (voice)
Subaru Kimura
As Gian (voice)
Tomokazu Seki
As Suneo (voice)
Shoya Chiba
As Eru (voice)
Ryo Hirohashi
As Underwater Buggy (voice)
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