Guardian Heart Pretty Cure

Guardian Heart Pretty Cure is a fanfic series by Honoka Tsukimori Hinamori which caught some flack at one point for filking from Shugo Chara, Mattimation Films' 5683, Fresh Pretty Cure, and Heartcatch Pretty Cure, as well as other fan-series, Shining Pretty Cure and Pretty Cure Perfume Preppy.

This fanfic contains examples of:

 * Copy Cat Sue: Pretty much any character who isn't from Shugo Chara.
 * Crossover: With Shugo Chara and Percy Jackson.
 * Crossover Ship: Apparently!
 * Expy: Cure Dahlia for Cure Diamond and Cure Moonlight.
 * Fifth Ranger: Cure Dahlia.
 * Filk: Probably the best example yet of meshing franchises together into an Alternate Universe.
 * Heel Face Turn: Honoka, in episode 2. A little early, and pretty much more drama-free than most in any Pretty Cure series.
 * The Movie
 * Name's the Same: Cure Mint, anyone?
 * Shout-Out: To Percy Jackson and The Olympians.
 * Sick Episode: Episode 14.
 * Twincest: Miko and Seiji.