Laala and her friends set off on the first Puchuu Tour in PriPara history, traveling from planet to planet across the solar system to show everyone how wonderful PriPara is. Each world they reach brings its own trials, and nothing goes as smoothly as planned, leaving open whether the idols can make it safely back to Earth. The film is a lighthearted musical comedy built around the PriPara idols and their tour among the planets.