Mimu Emilton, dreams of becoming a singing idol, much like her own idol, Yuri who  brought world peace through her music, and became the world's president. Mimu has a chance to audition in her hometown of Starland in front of Yuri, with the help of 6 "Excellent Idols".

However, before Mimu has the chance to sing in front of Yuri and the Excellent Idols, they are kidnapped by aliens and taken to another universe.