Fairyland is suffering, the worlds of Kaguya-hime, Snow White, and Cinderella are slowly disappearing. Natsuki, Ringo, and Layla are three young girls have been asked to transform into the respective princesses and spread happiness amongst humankind in order to restore Fairyland. Once they transform they become a three girl idol pop group ‘Lilpri’ (Little Princess) which spreads happiness through song.
The Fairytale World is in trouble. Its princesses and their respective worlds are disappearing, causing a ripple effect in the human world where their stories are popular. In order to save the Fairytale World, the Queen sends three magic animals, Sei, Dai, and Ryoku, to the human world with magic gems to find three girls who can become the “Super Miracle Idols,” the princesses Snow White, Cinderella, and Kaguya-hime. Those “princesses” end up being three little girls: Yukimori Ringo, Takashiro Layla, and Sasahara Natsuki. But the gems transform them into older singing superstars, and after their accidental debut at the singer Wish‘s concert, they become known as “Little Princesses,” or “LilPri.” Now they must collect Happiness Tones from humans in order to restore the Fairytale World.
Fairyland is in peril! The Super Miracle Idols have disappeared, flowers have stopped blooming and the Happiness Tones that come from inside people’s hearts are no longer available to restore balance to the world. The Queen, concerned, sends the three creatures Dai, Sei and Ryoku to the human world in order to find three princesses that can help make people happy and restore the Happiness Tones. Now, Natsuki, Ringo and Layla – once three normal girls – must transform into the idol group Lilpri with the help of their newfound friends and help save Fairyland in the process!