The kingdom of Aiduta was attacked by the Yakai forces and was soon devoid of any happiness, music, or dance. A sole fairy, Mikan, falls to Earth to be met by a young girl, Chika Takami, who later proves to be a very suitable candidate for a Pretty Cure. After they assemble the nine legendary Idol warriors, they have one mission in mind: To free Aiduta and destroy the Yakai.