Aoi Tategami, the lead vocalist of the band Wild Azur, becomes eager to enter a Battle of the Bands contest and impress one of her favorite musicians, Ayane Misaki. As Aoi struggles to think up lyrics for a new song, Ichika hopes to cheer her up with some ice-cream, only to discover that the ice-cream truck had been robbed by one of the Gummy Gang, Hotto...