In a crisis in the Fairytale World, princesses vanish, disrupting the human realm enamored by their tales. To rescue their world, the Queen dispatches magical animals Sei, Dai, and Ryoku with enchanted gems to seek out three girls destined to be the 'Super Miracle Idols': Snow White, Cinderella, and Kaguya-hime. Unexpectedly, the chosen ones turn out to be young girls – Yukimori Ringo, Takashiro Layla, and Sasahara Natsuki – who, upon receiving the gems, transform into mature singing sensations. Unintentionally stealing the spotlight at singer Wish's show, they gain fame as 'Little Princesses' or 'LilPri.' Now, they must gather Happiness Tones from humans to mend the fabric of the Fairytale World.