In which an ANBU is forced by the Hokage to train the next generation of of Team Seven. In order to do so, he will be forced to break down each one of them to be able to build them back up again. His task, in short, is to create a group of children warriors, ones who will fight for their village without a second's thought. Ones who'll abondon their families for the sake of the village. And so, as he watched them fight with each other; the daughter of a civilian yakuza, a jinchuriki raised in the red district and a clueless Uchiha who can see the spirit realm, he gave them his trade mark shit eating grin which they were positive was now burned into the backs of their eyelids. "You want to fight? I'll give you a fucking war". :: Au. A time travel fic where Kakashi trains them seriously and brutally :: :: Rated PG for language and violent scenes.