Nobita, Doraemon, and the rest must come to the aid of mermaid princess Sophia, whose undersea kingdom is suffering under the weight of a war. Their only hope lies in a mythical sword from the planet Aqua...
Wasabi Mizuta
Doraemon (voice)
Chiaki
Dorami (voice)
Megumi Oohara
Nobita (voice)
Tomokazu Seki
Suneo (voice)
Yumi Kakazu
Shizuka (voice)
Subaru Kimura
Gian (voice)
Shihoko Hagino
Dekisugi (voice)
Mayumi Izuka
Haribo (voice)
