Naruto Genkyouien is a Naruto fanfic written by Daneel Rush.
Also a Pseudo Crossover with School Days and Magical Heart Kokoro Chan.
It centers on the fact that the Kyuubi is actually a Cute Monster Girl Kitsune named Sayuri Higashiyama.This causes poor Naruto's life to go balls up.
It can be read here
Naruto Genkyouien contains examples of:
- Brick Joke: Yurie's cannon appears around chapter 31, and then comes up again at the end of the story as a greeting for the returning clan members.
- Door Stopper: Definitely qualifies at 693 thousand words.
- Light Is Not Good: Celestial Kyuubi Shinkirou Kougon uses light as his attacks, and he's kind of a Jerkass.