Key Animation
Nobita accidentally found a fossil dinosaur egg mixed with rocks in the dinosaur fossil exhibition site that he had visited before. He returned it to its original state with the "Time blanket". After hatching, the egg hatches a new species of dinosaur that is not named in the Cosmic Encyclopedia and names them Kyu and Myu Although they want to take care of them secretly, there are dinosaurs in the city still discovered by residents; Nobita and his friends were forced to bring them back to the Cretaceous period 66 million years ago the dinosaurs time. Just the time of Dinosaurs Extinction.
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.
