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.

Ruka is a young girl whose parents are separated and whose father works in an aquarium. When two boys, Umi and Sora, who were raised in the sea by dugongs, are brought to the aquarium, Ruka feels drawn to them and begins to realize that she has the same sort of supernatural connection to the ocean that they do. Umi and Sora's special power seems to be connected to strange events that have been occurring more and more frequently, such as the appearance of sea creatures far from their home territory and the disappearance of aquarium animals around the world. However, the exact nature of the boys' power and of the abnormal events is unknown, and Ruka gets drawn into investigating the mystery that surrounds her new friends.