Brown Leafed Vertigo is a Bleach fanfic by Foxflare.
An Alternate Universe fic in which 15-year-old orphan Kira Izuru is sent to Pure Souls Foster Home, and attends its sister institution, Seireitei Academy. Pure Souls is run by a deceptively affable Aizen and the shinigami captains are teachers at the Academy. The story is eventual Gin/Kira with a side helping of Kenpachi/Unohana, Gin/Aizen, and Renji/Byakuya.
The story can be found here.
Brown Leafed Vertigo provides examples of:
- High School A.U.: Around a third of the story is set in Seiretei Academy, making the story a sophisticated example of this trope.
- Smug Snake: Gin remains this in the story, and only Kira and Matsumoto like him.
- Ten Ways to Rewrite a Show: Resetting it to the real world.
- Stepford Smiler: Aizen is a male example of these, and also on the spectrum of Faux Affably Evil.
- Warrior Poet: Byakuya is one of these and Renji's conversations with him often turn out this way as well.