Doraemon the Movie: The Record of Nobita's Spaceblazer

Nobita is awakened by tremors in his room, believing an earthquake is occurring. A rabbit-like creature named Chamii appears, using a hammer to open a dimensional door through Nobita's floor. Chamii, caught stealing food, leads Doraemon and Nobita to a spaceship. They enter the vessel and discover the Koya Koya Planet. There, they encounter a young boy named Roppuru. The story focuses on the initial encounter with the alien world and the introduction of new characters. The themes revolve around interdimensional travel and the exploration of unknown environments.