World Idol Battle begins and all of Miracle²'s friends and families watch in support. During Miracle²'s performance, the Demon King and the Dokudoku-dan appear at the studio, spreading a Negative Aura around the world. Miracle² is forced to transform in front of the audience, but the Demon King defeats them, petrifying the Rhythms and striking everyone except Kanon with a Negative Aura. Realizing the cameras are still filming the show, Kanon confesses that Miracle² is Miracle Tunes.
The Music Kingdom contains musical treasures called Sound Jewels, which together produce the "Song of Blessings." The Sound Jewels are stolen by Maou, who corrupts them into Negative Jewels. Through the Dokudoku-dan, the Negative Jewels are used to turn humans into Negative Jewelers to spread a Negative Aura for Maou to use in his plan to conquer the human world by composing an evil song. In order to recover the Sound Jewels, the goddess of the Music Kingdom sends the Fairy Rhythms; Poppun, Rocky, and Kuranosuke, to the human world to seek help.
