Doraemon: Nobita and the Kingdom of Clouds

Nobita believes that a heaven exists in the sky, but he is mocked by his friends. Unwilling to give up, he seeks help from Doraemon and borrows futuristic gadgets to build his own Kingdom of Clouds. Nobita's friends are invited to invest in the construction of the cloud kingdom, and after it is completed, they all enjoy happy and heartwarming times together. The floating Kingdom of Clouds comes to rest on Mount Alps, where Nobita and his friends rescue a mysterious boy who soon disappears. While searching for him, the real Kingdom of Clouds suddenly appears before them. The group is invited to witness the highly advanced civilization of the cloud kingdom and are deeply amazed. However, they are placed under house arrest by the people of the sky and cannot return to the ground. They further learn that the sky people are secretly plotting a "Noah Plan." Ultimately, through explanations from the little people, many animals, and tree babies, the sky people understand how Doraemon and Nobita, as earthlings, have helped them. Through everyone's efforts to communicate, they reach an agreement to work together to protect the Earth's environment.