When Nobita goes diving with Doraemon, a mermaid named Sophia comes close to him and they all befriend her. When they proceed towards her kingdom, they encounter a fight between two opposing tribes.
Doraemon (voice)
Dorami (voice)
Nobita (voice)
Suneo (voice)
Shizuka (voice)
Gian (voice)
Dekisugi (voice)
Haribo (voice)
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