A group of friends explores a submerged city, discovers a mermaid, and navigates royal politics to prevent a war.
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...
Kōzō Kusuba
Rating: 6.8/10 (72 votes)