It's an exciting day for fashionable teenager Manatsu Natsumi, who is moving into the big city for the first time. Upon arriving, Manatsu is immediately charmed by the city's spectacles. However, things take an unbelievable turn when she encounters Laura—a real-life mermaid! Laura is searching for the Precure, a group of radiant warriors who may have the key to rescuing Grand Ocean, Laura's home. This duty soon falls upon Manatsu, whose unwavering determination causes her to awaken as one of the Precure: the vivid Cure Summer. As new friends join the team, Manatsu needs to adapt to her hectic, new life while protecting humanity's liveliness from oceanic invaders! With each battle more difficult than the last, the girls must discover what is truly valuable to them.

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.

Original short episodes featuring characters in super-deformed style.

After a successful showdown at Tokyo Tower, the Mew Mew girls enjoy a temporary respite. Now that Ichigo Momomiya and Masaya Aoyama have confessed their feelings to each other, Ichigo is overjoyed to spend time with her new boyfriend. However, their quick break gets interrupted, and soon the girls must battle against the Chimera Anima yet again. When things go awry in the ensuing fight, Ichigo is placed in grave danger. Just when things look most bleak, the mysterious Blue Knight arrives and saves Ichigo, proclaiming that he was born to protect her, before disappearing into thin air. With the fate of the world on their shoulders and the identity of the Blue Knight in question, the Mew Mew girls must strive to create balance between alien-fighting and their personal lives.