Morisawa Yuu is a tomboyish girl who lives in the small town of Creamy-ga-Oka. One day, though, she is abducted by aliens and after returning, is granted the power to transform into an adult by saying "Pamporu pimporu pimpoppun!" She heads off to have some fun with her powers and is inevitably spotted by a talent agent looking for a new hit idol singer. Under the stage name of "Creamy Mami" (from the name of her parents' crepe shop, "Creamy Crepes"), Yuu becomes a star ... but how can she keep her secret?
