Lost on the road of life (джен)

Kakashi had everything well in hand. He had stepped down from his reign as Rokudaime Hokage, his porn collection was as well worn as should be and his free time was spend with either Gai's challenges or helping out on various tasks while trying to make it seem like he wasn't there to help out. Annoying the hell out of everyone that crosses his path was as easy as breathing – easier now that he didn't have to be polite and diplomatic about it anymore.
So what if he agreed to a teeny-tiny favour of his once student and now successor? Not even Naruto could mess up just scribbling down a fuinjutsu for Kakashi to check over before he got back to his own, very busy life.
… Right?
 

Or: The one where Kakashi travels back in time, thinks he can fix stuff but clearly gets in over his head.