Chacha is a lively girl who dedicates most of her time to learning magic from her teacher Seravi, with the dream of reaching his level of skill. Despite her eagerness, Chacha's habit of stumbling into unfortunate puns during her magic incantations makes Seravi question whether she is prepared for magic school. Deciding the time is right, Seravi gives Chacha the Princess Medallion, which lets her transform into a magical princess capable of defeating even the most powerful foes.
Alongside her closest friends Riiya, a werewolf boy, and Shiine, an apprentice of Seravi's former rival Dorothy, Chacha embarks on a mission to protect the world from evil forces. But with the Great Evil Lord scheming against them, Riiya and Shiine competing for Chacha's heart, and the complicated bond between Seravi and Dorothy, Chacha finds it difficult to balance fighting darkness with keeping her personal relationships in order. Despite the constant challenges, Chacha remains determined to face every problem with love, courage, and hope guiding her way.