The night after the battle on the bridge, Sasuke stared at his teammate from his position on a futon in Tazuna's home. He wondered if he'd imagined what he'd seen on the bridge before the fake Hunter-nin's senbon had pierced him and rendered him unconscious despite the fact that the Sharingan was supposed to see and record everything accurately as it took it in. That had to be the case. He had to have hallucinated or something. He couldn't even contemplate the other option.
Naruto was not family. Not only was the dead last's surname Uzumaki, but blond Uchiha were almost completely unheard of. Brown was the dominant Uchiha hair color with black coming in at a close second. The few blond Uchiha in existence at the time of the Massacre had a shade of hair that was closer to brown than platinum, or sun yellow like the dobe had. Naruto bore almost no resemblance to the other members of his clan, though there was something about the shape of his eyes that was naggingly familiar.
How could this...this Outsider have the Sharingan, and a natural one no less? It was frankly impossible.
Finding out that their sensei had the Sharingan had been jarring enough. Kakashi had it in only one eye however, and his looked to have been implanted. He had heard of such procedures, but had never encountered a person who'd had one before Kakashi. In contrast to Kakashi's, Naruto's Sharingan had appeared to be completely natural.
How could Naruto have a natural Sharingan when he had blue eyes though? Almost everyone in his clan who'd developed the Sharingan had eyes that were black, brown, or dark gray.
He would have to shelve this problem for later when he had more resources at hand. There was no way he could solve it now, so far from Konoha and the clan records that might shed some light on this unusual situation.
This situation that he might have to deal with despite the fact that he didn't want to, since it was up to him to do so as the Last of the Uchiha.
Kakashi briefly wondered how Naruto had gotten the Sharingan, since he knew for a fact that Naruto was his sensei's son, as he had tested the boy himself using some of Minato-sensei's hair that he'd kept when he'd grabbed his brush on the morning after the Kyuubi attack and discovered that his sensei had borrowed it again the day before. After a great deal of thought on the matter, Kakashi ended up deciding that the Sharingan was something that must have cropped up from his mother's line since, if he remembered correctly, Kushina had what was commonly referred to in Konoha as the Uchiha chin. The fact that the Uzumaki were allied to the Senju made them more prone to being on the receiving end of attacks from the Uchiha. And, if one of the Uzumaki women had survived a raid on their home and decided to keep the resulting offspring...
Kushina had never mentioned being related to the Uchiha in all of the time he'd known her. But, considering the fact that a great deal of shinobi - even shinobi from great clans - couldn't accurately trace their families back more than five generations or so, unlike the Samurai who could accurately trace their lineage back for centuries, it was entirely possible that Kushina-san hadn't known she had been.
When Kakashi got to Konoha with his little bra- er, Genin and made his post mission report, which he'd been ordered to do in person considering the fact that the mission had been far from ordinary, he saved the best bit for last.
"Sasuke has activated his Sharingan." he said once he'd finished summarizing the main events of the mission.
The Hokage smiled at this, as did the Council that consisted of the rest of the Hokage's former Genin team. The infamous Team Tobirama. Apparently, they'd been worried that Sasuke wouldn't develop his Sharingan, since such late activations were rare, and were relieved that it was not so.
"As has Naruto." he continued, casually lobbing that little bombshell onto the group.
He was treated to the sight of the Hokage almost swallowing his lit pipe, and Koharu and Homura both looked like they were going to have heart attacks.
"I-I think I misheard you." Koharu said when she finally found her voice "You just said that Naruto had...?"
"Activated his Sharingan." he replied casually.
Senju Tobirama's students all blinked at the same time and stared at him, revealing how eerily alike they were, as well as why the Hokage kept them around despite the fact that they constantly sided with Danzo.
"Kushina." Homura finally said. "Has to be. I ran the genetic comparison between that boy and his father five times."
"Five times?" Koharu asked, sounding like she hadn't quite believed her ears.
"Whether or not it was deserved, Kushina had a bit of a reputation, so naturally I had my doubts." Homura said with a shrug.
"But still, five times?" Koharu said, her tone both cold and dangerous.
Despite the free entertainment he was receiving, he decided to get the hell out of there. He'd seen one of the famous Team Tobirama arguments once before, and had no desire to ever see another one again. From the looks of things, Homura was going to step on the hidden trap, and the usually placid Koharu was going to explode.
Sasuke choked on dust as he furiously flipped through the clan records which had been placed in storage following the Massacre, frantically searching for the name Uzumaki. There was nothing in his generation or his parent's generation or his grandparent's generation for that matter. Eventually, after hours of searching clan lists and complicated genealogy charts that were created to arrange marriages so the clan didn't become too inbred, he finally found it. Underneath the names of Uchiha Izuna and some Uzumaki woman whose given name had been blotted out was "Possible child, sex unknown". There was a birth year for this child that was nearly eighty years prior.
That had to be it. There was nothing else that could possibly fit.
Since his mother was also of Izuna's line, this apparently made him and Naruto something along the lines of third cousins. Which meant that Naruto was family.
He had family.
In his own apartment, Naruto stared in the bathroom mirror. It had taken a while, but he'd figured out how to activate that Sharingan thing on command. The Sharingan was the Uchiha clan's Kekkei Genkai thing. Did that make him a Uchiha? Did all of his family die when the Uchiha did? Had his parents been living in the Uchiha district avoiding him like all the Uchiha did all of his life before the Massacre?
The Old Man had told him that his parents had died on the day of the Kyuubi attack, but other people had said that his parents hadn't wanted him and that they were too ashamed to even be associated with him, which was why he never saw them. Who was right?
The Old Man cared about him. Had the Old Man lied to him to protect his feelings?
Lost in such musings, he finally realized how long it was he'd been staring in the mirror when the room outside his open bathroom door began to get dark. If he didn't hurry, he'd be late to meet Iruka-sensei, if he wasn't already. After quickly washing his face and hands since that was what he'd come in there for before he'd gotten distracted by his eyes again, he raced out of his apartment and down to Ichiraku Ramen.
Iruka was sitting there waiting for him when he got there, and when he sat down, his former sensei joked that since he'd had his first C-rank he should be treating him to ramen.
"No way!" he yelled before he made his order.
Iruka studied Naruto as he picked at his meal, still on the first bowl that he'd enthusiastically ordered before the enthusiasm started bleeding out of the boy and his eating slowed until he was just picking at his food. That was completely unlike the normally enthusiastic boy who would eat him out of house and home if he could. It was clear that there was a large problem on the boy's mind that was making him both worried and withdrawn. Considering the number of things that the boy had let roll off of him without looking the least bit concerned over the years, whatever was occupying his former student's attention was something MAJOR.
"What is it Naruto?" he asked as he watched the boy play with his ramen rather than eat it, which made even Teuchi who'd had the boy's second bowl ready several minutes earlier looking concerned.
"Iruka-sensei? Do you know who my parents are?" Naruto asked.
"No." he replied honestly. Beyond the fact that Naruto was an Uzumaki and that the Uzumaki were originally from Uzushiogakure, he knew nothing about the boy's heritage. "Why do you ask?"
"The Old Man said that my parents died in the Kyuubi attack, but..." Naruto said, leaving the sentence unfinished.
Great. Someone had been saying nasty things about Naruto's parents, Again. Considering the fact that it had gotten to the boy who would smile at just about all insults this much, whatever had been said had to have been bad.
"If the Hokage said that they died in the Kyuubi attack, then that's when they died. Whoever told you otherwise was lying." he said, attempting to cheer the morose boy up. He'd been one of the camp that had believed that the Uzumaki boy's parents had abandoned him until the Hokage had flat out told him that they had died. He hadn't known exactly when they died, and learning they'd died during the Kyuubi attack was a surprise. It was truly ironic that the attack that had taken his parents had also taken Naruto's. It was even more ironic that the monster that had killed Naruto's parents was sealed within their son.
"What's got you thinking about your parents now?" he asked, gently interrogating the boy in hopes of getting the name of the person to whom he was either going to give a severe beating or a good yelling at, depending on their age.
Naruto turned to him and blinked. When he opened his eyes, they were red. Sharingan red.
"Holy..."
"How did your mission go?" Sakura's mother asked her over dinner.
"Okay." Sakura replied. There were certain things about her mission in Wave that she couldn't share even with her parents.
"Did anything interesting happen?" Sakura's mother asked.
"Both Sasuke-kun and Naruto activated their Kekkei Genkai." Sakura replied, figuring that little detail was safe enough to share since it would be getting around the village soon.
"What is the de- er Uzumaki boy's Kekkei Genkai?" her mother asked, sounding worried.
"The Sharingan, just like Sasuke." she replied.
Her mother dropped her chopsticks and her father choked on his water.
"Using one of Them was rather clever, considering..." her father eventually said after a long silence.
"Shh, we can't talk about That, Dear." her mother said, nodding in her direction and giving her father a significant look.
The meal ended in silence. Sakura went up to her room afterward burning with curiosity about what it was that her parents couldn't talk about in front of her, and why it seemed to be related to Naruto of all people.
Danzo picked up his evening report on any and all important happenings within the village with a small smile and started to read. Ten seconds later, he sprayed tea all over it.
Edited 8-8-17.