In each season, there is a legend of warriors who will come to aid the world when it is in need, and stop an invasion of darkness. Thus, small mascot creatures from alternate worlds in need are often given the task of searching out chosen girls to take up the role of Pretty Cure. Although the original concept of Pretty Cure was of two girls who could not transform or use any attacks without being together, this concept has faded and recent seasons are now more diverse in ways of plot, transformations and attacks.
The term "Pretty Cure" can refer to either one girl or the entire group, and this wiki has decided to use the shortened term "Cure" and "Cures", with an attached title for specific reference (ie "Fresh! Cures" for the Pretty Cure of the season Fresh Pretty Cure!).
With the exception of the two sequels and the All Stars movies, every season's story occurs in their own separate universe, so the Cures from each season are the only Cures in their universe.