In a world where he didn’t die at the bridge, Obito is a loyal Konoha shinobi, even if his Konoha is practically gone. Rather than die at the hands of Orochimaru, Obito triggers an experimental time-space jutsu that sends him across dimensions, into a world where his counterpart went insane and Kakashi is mystifyingly different.

Somehow, somewhere along the way, Orochimaru falls in love with his teammate. This…changes things.

It said something about Gai that Iruka was actually unsure whether that was a line.

In which Konoha needs to upgrade their plumbing to be more resistant. (Or, the one where Sasuke and Naruto get genin and maybe someone buys a house.)

The scarred ninja sighed. "You couldn't have brought them by earlier?" "No," Asuma-sensei said, and he was still smiling, "I wanted them to get the full Umino experience." Ino shot a look to her left: Shikamaru's eyes were open wider than their usual droop. What the hell was the Umino experience, those eyes seemed to say.

He had died- honorably, he'd like to think, despite living as a villain and an assassin for over half a century- and that, as far as Xanxus had ever figured, would be the end of that. No heaven. No hell. Just life when you were breathing and nothingness when you stopped. Except that it didn't, quite, turn out that way. Except he came back as the son of the kindest, sometimes saddest father in the world. In both worlds. A father that he knew, without a doubt, to be his flesh and blood. All at once, Xanxus had everything he'd wanted as a child. A home. A family. Stability. And he was going to fight like hell and beat down anyone who tried to take it from him, no matter what his age. (In which Sakumo raises a son who speaks multiple languages from birth, all of them gibberish to the poor single father jounin, spits vulgarity with the same ease as he does his praise and burns with an unshakable determination to build himself a family that will not fall, no matter who or what is thrown against it.)

Zabuza's first mission out of the village with his genin team takes them right through hostile territory. What a surprise that it goes south.