Key Animation
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.
Key Animation
Doraemon, Nobita, Shizuka, Gian, and Suneo set out on an adventure in the Caribbean Sea. Nobita is the captain of a ship and fights his enemies on board. Shizuka gets kidnapped, and a storm impedes their journey. Mini-Dora help Nobita and friends on their journey. When the adventurers finally find the mysterious Treasure Island, they discover it is more than just an ordinary island.
