Step right up to 1950s Japan! The postwar economy is thriving, but the Sunflower Circus is struggling. Led by ringmaster Maria, the financially strapped troupe travels the country in a desperate bid for a spot in the Circus Collection—an elite global festival. When circus prodigy Mizuka Tsurumaki joins their ranks, the fortunes of the Sunflower Circus begin to change, finally giving them a chance at big top glory.