Chacha is a cheerful girl who spends most of her days practicing magic under her teacher Seravi, hoping to become as skilled as he is. Though Chacha is enthusiastic, her tendency to make unfortunate puns out of her magic chants leaves her teacher wondering if she is ready for magic school. Deciding that there is no better time, Seravi gifts Chacha the Princess Medallion, allowing her to transform into a magical princess capable of defeating even the fiercest opponents. Together with her best friends Riiya, a werewolf boy, and Shiine, an apprentice of Seravi's old rival, Dorothy, Chacha sets out to defend the world from sinister forces. However, between the Great Evil Lord plotting against them, Riiya and Shiine's rivalry to win Chacha's affection, as well as Seravi and Dorothy's complicated relationship, Chacha struggles to find balance between fighting evil forces and mending relationships in her everyday life. Though obstacles continue to come her way, Chacha is determined to overcome any problem she faces with love, courage, and hope by her side.

This OVA takes place ten years in the future and chronicles the possible events if Conan Edogawa and Ai Haibara do not take the antidote to APTX 4869 and grow up alongside their friends Genta, Mitsuhiko, and Ayumi, while still maintaining their detective endeavors.

In the human realm, witches and wizards seem to be mere creations of fantasy. Ever the adventurous teenager, Mirai Asahina sets out to disprove this notion by following the tracks of a peculiar shooting star that had fallen the night before. Sure enough, Mirai soon has a chance encounter with Liko—a clumsy witch apprentice who hails from the Magic World, a colorful realm inhabited by magicians. As if by fate, the appearance of strange villains forces Mirai and Liko to join hands. In doing so, they unleash their strength as a pair of legendary magicians—the Maho Girls Precure! Now gifted with unbelievable power, the unlikely duo embarks on an adventure filled with magical spells and powerful gemstones. Along the way, the two girls discover the hidden marvels that tie their individual worlds together.

Spinoff based on the Nintendo DS RPG game by SEGA, released in Japan July, 2008. In a world where humans serve as livestock for the ruling beastman, and where sand fills the roles of water and fire. Kyrie is recruited by the World Destruction Committee to assist in putting an end to their world. Kyrie alone holds the power needed to do it. (Source: AniDB)