A 2002 Japanese short anime film based on the popular manga and anime series, Doraemon. It premiered on March 9, 2002 in Japan on a bill with Doraemon: Nobita in the Robot Kingdom. The movie's original plot was written by Hiroshi Fujimoto and Motoo Abiko.

A 2001 Japanese short anime family film based on the popular manga and anime series, Doraemon. It premiered on March 10, 2001 in Japan on a bill with Doraemon: Nobita and the Winged Braves. The movie's original plot was written by Hiroshi Fujimoto and Motoo Abiko.

In the future, the oceans have risen to flood all the continents due to humanity's negligence of the environment. Only a few bits of land have been spared, and one of those is the city-island where Elfie lives with her grandfather. One day, due to an underwater incident, she discovers that she can breathe underwater. Her grandfather reveals that in truth she is one of the mythical sea-people. Using the city folk's xenophobia, local politicians spark a war with this hidden people to distract people from their current resource problems, and Elfie is caught in the middle of it.