When a mysterious object falls from the sky in the park, 13-year-old Mirai encounters Riko, a girl from the magical realm. Together, they embark on a quest for the powerful 'Link Stone Emerald.' However, their mission is jeopardized by Batti, a servant of dark magic, who unleashes a menacing Yokubaru creature. In a moment of crisis, Mirai and Riko unite as the fabled Pretty Cure by invoking their magical phrase 'Cure-up Rapapa'.