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In a world unlike our own, fourteen-year-old Mimu Emilton dreams of becoming an idol. Luckily for her, the search for a new idol is afoot in Starland! During the tryouts, however, she and several other famous idols are whisked away to another world where an intergalactic idol competition is taking place. What better chance for the earthlings to prove their idolness once and for all? With contests abounding and ecchi galore, Mimu certainly has her hands full... but can she become the most famous idol of them all?
Yui is a girl who lives in the town of Paparajuku, and who dreams of being an idol, even if she realizes that being an idol is next to impossible for her. Her friends often remark on how much she dreams about it. But then, the PriPara idol theme park opens in her town, and that an idol named Laala is coming to town from Parajuku, which only makes Yui dream even bigger. The new PriPara theme park has been updated with new concepts. However, due to a system error, Laala is no longer able to PriPara Change.