Doraemon: Nobita’s New Dinosaur

Nobita visits a dinosaur exhibition with his friend and vows to discover a real dinosaur. He trips on a rock while leaving the exhibition and suspects he has found a fossil egg. He then shares his bold vow with his friends, setting the adventure in motion.

Back home, Nobita convinces Doraemon to wrap the fossil egg in the time-transport cloth. Two Sinosauropteryx hatch from the egg, a new species not listed in the Complete Encyclopedia of Space. Nobita names the twins Kyu and Myu.

Under Dr. Dinosaur's guidance, Nobita learns how to care for the hatchlings. The two twins grow quickly and start showing differences: Myu can fly while Kyu cannot yet. Nobita realizes that they will need more space and attention to thrive.

As the creatures grow, Nobita's room becomes crowded. They use the Breeding Diorama Set to give Kyu and Myu more freedom and a larger habitat. The twins adapt to the bigger space, setting the stage for bigger adventures.

The day Nobita completes his dare arrives and his friends come to visit. Kyu and Myu create a commotion, prompting Nobita's mother to come upstairs. They try to hide the dinos with the Spatial Movement Crayon, but the townspeople still catch a glimpse.

Realizing the twins have grown, the group agrees it is best for them to return to their own time. They plan to travel back the next morning using the Time Wrapping cloth. Nobita faces mixed feelings but accepts the decision for their safety.

The next morning, Doraemon's party activates the Time Furoshiki only to land in Late Jurassic Colorado by mistake. They encounter dinosaurs like Torvosaurus, Allosaurus, Diplodocus, and Brachiosaurus. Realizing they must return to the Time Machine, they press on through the prehistoric landscape.

In the scramble, Nobita trips and drops the Breeding Diorama Set. Their disappearance is noticed by a monitor named Jill, who has shapeshifted into a white monkey and is taking orders from a mysterious Natalie. The group continues their search, unaware of the surveillance, and eventually reaches the sea.

Nobita and friends, guided by a Futabasaurus similar to Piisuke, reach a mysterious island where dinosaurs look like Kyu and Myu. There they reunite with Doraemon, Shizuka, and Myu. The island hosts a community of look-alike dinos, testing Nobita's bonds with his pets.

Kyu is initially excluded by the island group because he can't fly and his tail is shorter. Nobita declares that Kyu can fly by himself, sparking flying-training sessions. This marks a turning point as Kyu begins to develop his flying ability.

Gian and Suneo realize the island is actually the breeding diorama grown to life. Doraemon explains that this era is tied to the Cretaceous extinction event, with a meteor striking on the Yucatán Peninsula 66 million years ago. Jill and Natalie decide not to interfere, arguing that history cannot be changed.

As the meteor approaches, the team orchestrates a rescue by moving the dinosaurs off the island onto a larger space using the Space Movement Crayon. They aim to protect the creatures from the heat and chaos of the impact. Kyu makes his most decisive flight, rescuing Nobita from a Tupandactylus attack, a moment celebrated as a milestone in evolution.

After the rescue, the group returns to the present era with Kyu and Myu staying on the island and Nobita and friends bidding them farewell. Nobita challenges himself to perform a bar reversal he couldn't do before and finally succeeds. The adventure closes with growth for Nobita and a nod to the new wings of Kyu and Myu.