Doraemon: Nobita and the Birth of Japan

Nobita wishes the world into a magic-reliant one with Doraemon's Moshimo-Box, and, along with his friends, must stop an asteroid from hitting the planet with help from a sorcerer-in-training.

After bringing a fossilized egg back to life with the Time Cloth, Nobita finds himself the owner of a baby dinosaur. Everything is fine until it grows up. Nobita and friends use Doraemon's time machine to return it back to its own time.

After a high school lab experiment goes horribly wrong, Mordecai and Rigby must go back in time to battle an evil volleyball coach in order to save the universe — and their friendship.

Sewashi and Doraemon find themselves way back in time and meet Nobita. It is up to Doraemon to take care of Nobita or else he will not return to the present.

Nobita tries to prove to Doraemon and his friends that dinosaurs are still alive, and, after finding an underground cave, discovers a hollow earth civilization of knights and saurian steeds that Suneo must be rescued from.