Round, Square, Marquis, Oval, Heart, Pear and Triliant, five fairies who reside in the Garden of Hope (希望の園 Kibō no Sono), call in the Pretty Cure to save their world from a witch from the Dark Zone who wants to take the Garden of Hope's Diamond Line, which consists of several pieces of jewelry worn by the Queen of Hope on her birthday. These jewels, if fallen in the wrong hands, will cause the Garden of Hope to become unbalanced, thereby causing everything else to become destroyed and enabling the restoration of the Dark King.