Nobita finds a wind creature and names it without thinking twice, because that's what he does, he stumbles into magic and treats it like a friend before asking questions. The movie knows this is its whole heart, so it never pretends the stakes are bigger than a kid trying to save something he just met from people who want to use it. By the end you're rooting for a sentient wind gust because Nobita already decided it mattered.
After a typhoon sweeps through the neighbourhood, Nobita comes across a living ball of wind that was carried there from a distant land. He names it Fuuko. Nobita, Doraemon and their friends later take Fuuko through the Anywhere Door to a wide countryside, where they hear about the Wind Village and the Storm Village and learn who Fuuko really is. The group soon has to shield Fuuko from the Storm Village and from Nobuo, who has been possessed by the spirit of that village's former leader. The film is a feature-length Doraemon story mixing adventure, comedy and fantasy.