http://exalted.xi.co.nz/wiki/wiki.pl?TheKawaiiEdition
It's a parody/spin-off of Exalted (or maybe a transformation?) to a more anime-centered base. You have the Magical Girl Gangs of the Scarlet Empire of Neo-Empress Scarlet. You have the Bishonen, returning from their exile for their ambitious attempts at harems in a long-ago age. You have the hungry Cat Girls in the Threshold. There's the Helping Goddesses meddling with fate. And there's the Gothic Lolitas that serve the Nevercute.
The pages are full of amusing jokes and references, and it IS, by all accounts actually playable (for "those of correctly twisted mentality"). And, hey, I know the people here are pretty twisted... ^_^
EDIT: You'll probably need to be somewhat familiar with the setting and system of Exalted. Base concepts such as charms, castes, etc aren't explained.