Doraemon, Nobita and his friends go to find Utopia, a perfect land in the sky where everyone lives with happiness, using an airship having a time warp function.

Doraemon the Movie: Nobita's Sky Utopia

In a cone-shaped land named Kikyōgahara in Shin Province, there lives a girl named Hana. She is a gentle girl, who always thinks of her family, in particular her great-grandmother Chiyo, whom she affectionately calls "Granny." One day, a traveling entertainment troupe named the Natsugawa Genzaemon Troupe happens by, and the villagers welcome them warmly. Upon finishing their performance and receiving their acclaim, the troupe's leader spots Hana with some "oyaki," his favorite food, and transforms into a fox in his excitement.  It turns out that the leader Genbanojō, and his companions O-Natsu and Shinzaemon, are all foxes who have taken on human forms. Genbanojō hastily negotiates with Hana, telling her that in exchange for keeping their secret, he will grant her one wish. She answers, "I want to let my Granny see the cherry blossoms."