Nibi by ayzuLK

Every Uchiha has a pyromaniac side, Madara Uchiha wouldn't be an exception.
Between choosing to enslave a fox with tails capable of levelling mountains or a giant fire cat, he found himself with a difficult choice.
Where Madara uses Nibi instead of Kyuubi in the fight against Hashirama, leading Matatabi to be the bijuu sealed in Mito Uzumaki.
Many years later, Naruto Uzumaki has a giant necromancer cat in his belly.
They say that it takes a village to raise a child. Naruto has a flock of ghosts in need of therapy, an ANBU with PTSD who knows how to manipulate an order of distancing, an academy sensei who could take over the world and a giant cat who likes to control the dead.