Board Thread:Fanon Canon 2/@comment-2185383-20140924182221/@comment-2185383-20140928010229

"''How did Konoha make the mistake of sending a Uchiha away from the village shortly before the clan's massacre? Hiruzen Sarutobi, the Third Hokage, wasn't exactly content with the decision of the clan's massacre in cold blood, even if they were plotting a coup d'etat. The fact that the massacre involved the murder of innocent children also bothered him espiritually, so if he could at least do something to try and save a Uchiha child without Danzou or the elders noticing, it would give him some peace of mind, but how would he go about it? It wasn't until Iruka Umino came begging him to place a certain Kimi Uchiha, one of his recently graduated students, on a C-Rank mission, because he couldn't just ignore Kimi's will to challenge herself, she kept begging him to go on a C-Rank mission instead of the usual D-Rank "chores" Genin usually do, even if for some strange reason they weren't handing out missions to Uchiha recently. The only available C-Rank mission was a joint mission with Kumogakure that would take place somewhere between the Land of Fire and the Land of Lightning, the estimated time for the mission being a week or so, meaning the Uchiha wouldn't arrive until after the massacre. This was the perfect opportunity for Hiruzen to do his justice, and he himself switched the mission profiles. Since the massacre was planned somewhat hastly, Danzou and the elders wouldn't notice a Uchiha was missing during the macabre event. Once she arrived a couple days later, but before entering the village, Hiruzen would come to her and warn her of the massacre, without revealing what truly transpired, he would simply tell her that her clan was massacred by someone and the killer could still be on the loose in Konoha, despite the ANBU and ROOT's efforts to track him or her down. Hiruzen would then advise Kimi to seek shelter elsewhere and as far away from the village as possible. Danzou and the elders would eventually mark her as a missing-nin, but Hiruzen hoped she would be far away from Konoha by then. Unfortunately, Kimi's mission ended a lot sooner than expected, and that led to her witnessing the aftermath of her clan's massacre and almost getting killed by a ROOT shinobi.

''How did Itachi and Obito miss her during the massacre? Well, Obito was oblivious to her existence since she was born after his defection from the village, so he simply killed any Uchiha he encountered in the village. Itachi did notice his cousin was missing, but he couldn't stick around the village after Sasuke found him. Danzou told him to keep an eye out for her, and he eventually found her in Kumogakure years later when he was already in the Akatsuki. Using the excuse of being after the Two-Tails Jinchuriki, Itachi fought and even though he managed to overpower Kimi in combat, he couldn't finish her off due to interference from Kumo ninja. He didn't have another chance before his final encounter with Sasuke that put an end to his life.''"

This was copied from the app that originally got her approved.

Assuming Hiruzen knew about the massacre, and knowing he could have stopped it, giving a young Uchiha a chance at survival was the very least he could do. Iruka's wish to include her in a mission outside the country that would likely take time to accomplish was the perfect chance that Hiruzen couldn't pass up. Even with that, things didn't quite go as planned, and Kimi survived the massacre almost by a fluke. I'd like to believe it's a plausible story for an Uchiha that actually witnessed the massacre and managed to survive, besides Sasuke.