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...

Cast

Wasabi MizutaDoraemon (voice)

ChiakiDorami (voice)

Megumi OoharaNobita (voice)

Tomokazu SekiSuneo (voice)

Yumi KakazuShizuka (voice)