A spring carnival where 40 Pretty Cure warriors converge is pure franchise fan service, and the movie knows exactly what it is. The animation jumps several notches above the TV show, especially in the dance sequences where CGI actually serves the spectacle instead of undermining it. The plot is basically a mascot heist wrapped around an excuse to watch every iteration of the franchise move together in one space. What matters here is not the story about guardian dragons or suspicious announcers. What matters is seeing Cure Moonlight stand next to Cure Heart, all of them moving through a world that feels alive in a way the weekly show rarely achieves.
The magical kingdom of Harmonia celebrates its annual spring carnival, a festival where dance and music flow as naturally as water. Haruka and the current Pretty Cure team arrive hoping to learn from their legendary predecessors, but the celebration quickly spirals into chaos. The kingdom's fairies vanish without explanation, and the carnival's hosts, Odoren and Utaen, begin acting strangely. Worse still, Harmonia's guardian dragon awakens in fury, sensing something deeply wrong beneath the festive surface. With both the present and past generations of Pretty Cure united, the warriors face an impossible task. Forty magical girls must work in perfect harmony, combining their powers through song and dance to restore peace before the kingdom tears itself apart. Every Cure must contribute to the miracle, turning the carnival's joy into their greatest weapon. It's a story about unity across generations, where synchronized hearts and voices become the only force strong enough to save them all.