Three's A Crowd (But Pack Sticks Together)

Kaguya won, Kurama has a 'plan', Kakashi's on board. Will a Relatively-Good!Kyuubi, Time travel, a younger stick-up-his-ass (though not for long if Kurama has anything to say in it) Kakashi and a shocked Team Minato be enough to save the world? (First Fanfiction, some angst, no romance, ever-evolving plot!) Previously known as "Kyuubi wants to live - Kakashi time-travel".