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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.
Top 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)
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