The planet's top pop idol, Yuri, rose to the top by captivating a world ruled other idols with her magnificent charisma and charm. Elected President, Yuri served the world as best she could until it came time to find her successor. When she chooses six idols to serve as replacements, it sparks the fantasies of a high school students named Mimu, who wants to be just like Yuri. In these episodes, Mimu and the other girls travel to the Idol Dimension, where Yuri resides, and find that the entire island is under the Yuri's spell. Their mission is to give a performance that shows the islanders there is more than one super pop idol on the planet, with the fate of the islanders resting on the strength of their concert.