All in Third Person POV.
Enjoy!
Shisui was four when he met Uzume, when Fugaku-san wanted him to train with her.
When he first laid his eyes on her, he saw nothing out of ordinary. She was the heiress, and yet his mind was telling her that she was not someone strong, someone who cannot endure, someone with no potential. A plain face, aura, and posture.
Perhaps it was a bit mean, but for him, who was called prodigy by his immediate family almost every week since he began training in shinobi arts, Uzume seemed like she couldn't stand even the slightest bit of violence.
He had not been wrong.
She was weak. She flinched a lot, closed her eyes a lot, and did a lot of reactions that screams 'civilian' in his face.
The worst thing he saw in her was her motivation.
Because there was none whatsoever. Like, none, nada, zip. Zero points for her attempt at dodging his attacks, when she actually tried to. Like, really, she was slower than slugs... not that he ever saw one. But still.
It occurred to him, once they were done with the spar (it was obviously him who won, thankfully there was no Fugaku-san there to see this) that the girl was not paying attention to her surroundings. Her eyes were clouded like she was daydreaming.
Is she for real?
She would be dead if she was out in the field, out there where survival was the most, most important. Out of the shelter that was their village, Uzume would be dead.
Uchiha or not, this fact was horrifying.
He needed the heiress of the clan alive, not dying out there somewhere!
But first, he needed her to pay attention.
"Yume-chan, let's run!"
Shisui had no qualms on forcing her to run with him, and in the future, forcing her to be a competent shinobi.
He took her hand and dragged her, all along hoping she would wake up from her daydreaming.
It would be lucky if she lived past her twentieth birthday if she kept this up.
Uzume might or might not be channeling her best attempt when she spared with Uchiha Shisui.
She was distracted by the one scene that kept replaying in her mind. She had watched it on youtube with her friend, where a boy with both eyes gouged out smiling on the screen and then promptly committed suicide by letting himself fall from a cliff.
A really, really steep cliff with a waterfall.
Since Shisui introduced himself, she couldn't bring herself to get out of her 'daydream' session that randomly appeared. They were always triggered by words.
Or names. It depends, really.
"Why do you like running so much?" She asked one day after they were practicing with shurikenjutsu.
"Hmm, if I told you that I want to be the fastest shinobi alive, and I was exercising with running, would you believe me?"
That was weird. Uzume blinked as she tilted her head to the side, taking the question seriously.
"I guess so. You joked around, but you seem to be honest. Most of the time." It's a rare trait to have, she would have commented that another day. But she was savoring the taste of the perfectly made tamagoyaki in her mouth, so she answered half-heartedly.
Shisui was quiet and then he opened his mouth.
"Can you watch over me...?" Shisui started as he stared into the distance. "I may forget my goal... in the future, you know. I have watched a lot of grown-ups, and almost all of them are forgetting their goal... their dream..." his voice started to quiver, "I want someone who can remind me. If you want to be that someone, I mean, please be that someone?"
Uzume stopped chewing as soon as Shisui started talking. She was taken aback when she saw the doubts, the fear of losing one's goal, the strong desire to overcome anything that would be thrown at his face, the determination that etched this five-year-old academy student.
The maturity of that this boy possessed astounded her again and again. And it would occur again, and it didn't lessen the respect she had for the boy every time he said something like this.
"Okay," Uzume smiled, feeling like it was the first genuine one she had produced until now, "I'll be watching you. When you stumble, I will be the one who will make you get up. When you thought of slacking off, I will be there reminding you that I'm watching here, and if you decide to give up," she stared directly at him, "I will remind you of your goal, again and again."
Shisui was crying openly by now. He nodded his head vigorously, as he wiped his tears off.
After calming down a bit, he grinned, tears still staining his cheeks, "And I will help you too! Your goal, what is it? Can you tell me?" He prodded noisily.
Uzume blinked as she thought it over.
She thought of her old life, and her life now. She knew she wanted it in her heart, but she didn't know that she would had this goal, a goal that was... quite common, actually.
"Erm, I want peace...?" She sounded unsure, even to herself. "I want peace for the whole world." She repeated, sounding surer this time.
Shisui nodded to her and exclaimed, "Then, it settled!" He held out his pinky, "Let's make it a promise!"
Uzume nodded (even though she felt a bit silly now) as she held her pinky out and intertwined it with Shisui's.
"指切りげんまん嘘ついたら針千本呑ます (Yubikiri genman uso tsuitara hari senbon nomasu: if you tell a lie, I cut off your finger, fist you 10,000 times, and make you drink 10,000 needless)!" They said with fervor. "指切った (yubi kitta: finger cut off)!"
The grin on Shisui's face was there for the whole day.
Even for years to come, this particular day was special enough to be remembered, and it would unexpectedly help someone who got lost on the road of life.
Weasels were cute. She saw them once when she visited the zoo in Osaka (a not so important thing that she had remembered about her past life).
Itachi was the epitome of cuteness, and his name fitted him flawlessly. He was perfection to her, a quiet baby with too big curiosity to ignore.
When Itachi, who was named after the 鎌鼬 (Kamaitachi), was born, she was already in the academy, her early entrance was prompted because she had awoken the sharingan when training with Shisui (adrenaline rush and then suddenly the world around her changed, it became sharper, perfect and she came to realize that she had been blind before awakening it).
Uzume drew weasels on her notebooks, the day he came to the world.
She was four, almost five.
She took the graduate class that summer, believing if she graduated faster than Hatake Kakashi, some good would come out of it.
Itachi met Shisui through his sister.
"I'm your sister's best friend, Uchiha Shisui! Nice to meet you, shrimp!"
Itachi stared up at Shisui with a frown on his face. In his opinion, the boy in front of him was too bright and too obnoxious to be his sister's best friend.
Maybe this was a facade? Shisui-san was a chūnin, after all.
"My name is Uchiha Itachi, it was nice to meet my sister's friend. Thank you for taking care of her." With a short bow, Itachi introduced himself as politely as possible, for he was the heiress's brother.
Uzume was face-palming when she saw the horrified visage of her best friend as he regarded her younger brother.
For Shisui, simply watching a boy 5 years younger than him being all polite and stiff, even though he was the heiress's brother, was horrifying. A level below Uzume when she daydreams horrifying.
Yep, he could see now that the two were brother and sister.
She was placed under Uzumaki Kushina, along with the older by five years Sarutobi Daikichi and Nara Chie. They were a team meant for sabotage. While their jōnin instructor was hot-tempered, both Daikichi and Chie were calm. Uzume got along with them, drawn by Daikichi's easy going nature, Chie's unique way of thinking, and Kushina's quick temper that was hilarious if you weren't the victim of her wrath.
Until three years later, Daikichi and Chie simultaneously died while on a mission with Team Kakashi.
Nohara Rin was captured, being the medic of the team (the heart of the team, the one who would heal and destroy the team). Something went wrong (yes it went wrong because everyone died and only Kakashi survived), and Kakashi was known thereafter as 仲間殺し (Nakama-goroshi), or Comrade Killer. A disaster of a mission and the whatever relations Konoha had with Kiri was gone in the blink of an eye.
(Uzume wouldn't admit it to anyone, but for two years after Daikichi and Chie's death, she killed every person, that she had encountered on her missions, that bear the Kiri forehead protector. She needed the outlet and somewhere in her mind, she painted them as the forever irredeemable enemy who ought to be killed for they had taken away the two people she loved for three years).
That time Kushina and Uzume had another mission, separated because they were simply needed in Iwa, not Kiri. Opposite direction, opposite world. Different outcomes of the missions. Half of the Team Kushina and Team Minato died and both teams were disbanded, having no benefits to exist anymore.
Two years later, Kushina died while protecting her child and village. The village suffered just because the Yondaime and his wife wanted a child, some higher-ups whispers and Uzume heard, having spied on them to gather information at what happened with her sensei.
Uzumaki Naruto came to the world with the casualties of countless people including the Uchiha, that was true. However, it was not his fault.
She tried her best not to condemn the boy for her beloved sensei's death. She went as far as to sneak in the special room for the baby and took one look at him.
Uzume plotted when she activated her newly awakened Mangekyō and found the special chakra inside the boy that was not the Kyūbi.
Ōtsutsuki Ashura.
A boy, a child as young as he was had no place to bring peace in this cruel, unforgiving world.
But a young man, born from the legend might.
"Greetings, my name is Uzume."
The boy in front of her was two, but his mind? Probably thirty or something.
"You had interfered with the things that you shouldn't have, girl."
Uzume gave no response as she sipped her coffee.
The disapproving stare weighed down on her, as she huffed.
"The world needs a legend, not a child."
Ashura, or Naruto stared at her with disappointment but in the end, he relented.
"Fine. I will help you, Uzume. For peace."
Uzume bowed in gratitude, as the man in the form of a child, deserved the gesture for he accepted her act of meddling with the death.
After all, Ōtsutsuki Ashura was already dead, and she literally brought him to the living world.
For her selfish desire for peace (peace of her mind? peace for the shinobi world?).
(In the back of her mind, Uzume was thankful for the knowledge of Naruto being a transmigrant of a man that might be capable of bringing peace without a madman starting a worldwide war in name of peace).
Itachi was used to finding his sister gazing at nothing.
If it hadn't been for Shisui explaining that she was not crazy, that her mind was simply in a different world, her own world, Itachi might drag her to the nearest psychiatrist and force him/her to check up on his sister as soon as he knew what mental health was.
In moments like this, Itachi simply watched, afraid that one day she would be too far gone to come back to their world, to reality, to him.
But she came back, every time, and that's a relief for him.
Itachi, no matter intelligent he might be, was simply a worried younger brother. He treasured his sister above all else, her existence was as important as his younger brother, Sasuke.
When his sister's eyes light came back, Itachi's heart felt like it was showered with water by the Nidaime himself. He couldn't let this opportunity escape him, and so he spoke.
"Onee-sama, I am to be graduated this spring. Will you come to the graduation ceremony?"