What if reader was a Demi God of Hecate and for some reason she ended up in the warring era of Naruto.
It was just after the Titans war, She was finishing up wrapping a stab wound on her lower abdomen while doing that she noticed that her mother was walking towards her. Unlike her siblings in the battle of Manhattan she didn't take her mother's side she stayed on the side of the Olympians knowing it was better and knowing that out of the 2 it was the lesser evil.
She and her mother hadn't had a good relationship after that her siblings had been on a bridge when she collapsed it she didn't know until after the fact she'll guilty for years despite knowing that it would have been better for them to be dead than alive at that point knowing that dead they would be seen as heroes for the way they thought of everything but alive no, they would have been seen as a threat they would have been exiled from the world and she knows that her mother knows that.
She ignores her mother when she speaks to her, although she listens, she doesn't respond, a few hours later, as she's sitting in her Cabin 20.
All of a sudden she felt some ancient primordial magic surrounding her, she had been summoned by Chaos, the primordial of creation, she doesn't know why she's there, not at first, he asked for her help, a rare thing seeing as he doesn't typically interact with humans.
He says that a timeline of his has gone off course a man kills another and as such derailed the timeline where it shouldn't have gone he asked that she help him bring it back she asked for him to elaborate a little bit who was she supposed to stop why is she supposed to stop it and is there anything she's supposed to specifically know or she going in blind he answered questions one of the time some vaguely some clearly some not at all but she gets answers on the Les she simply asked that he let her keep her Demi God powers the magic she inherited from her mother and her father her father who was a wizard the reason she was killed by Zeus when she was just 10 years old, before then being revived by death himself stating that his sisters said that her time was not done that she had wars to fight in despite the fact that she didn't not wish to, despite the fact she wished to rest in peace Thanatos respecting this fact revived her once more stating that when she died a second time she would be granted Paradise almost immediately there would be no trial he would vouch for her she did not wish to be revived she wishes stay in the cool embrace of death he respected that fact I gave her the respect that she should have gained before she died but never felt.
She asked Chaos that if it was possible could she stay in that timeline she had no links to this world, her siblings, dead her mother, she despises her father, dead, there's no reason for her to be here anymore she has no friends she cares for little she simply asked stay in that world Chaos respecting this decision granted her power and granted her wealth she would live in that world till she died then when that happened she and Chaos would reunite once more and they would discuss what happened from there they would discuss whether or not she failed or succeeded she asked one more question if she fell in love with someone from there or some people what would happen.
Chaos answered simply if she fell in love with someone there they would become her, they would get her power her image everything the first child she ever has will become an exact copy of her gender, hair, image, her powers, whatever they would be her, but their personnel will be different, absolutely, every person is different, every circumstance is different, they would not go through the things she went through so their personalities would not be exactly alike, but otherwise, it's like a copy paste that child will be her
Chaos ask her one last question, would you like to be reincarnated, or would you like to simply go there with your body, she answered almost immediately, she did not wish to switch body, she wished to keep her body, she did not want to be reborn, she wants to keep her scars, no matter how ashamed they made her, she wish to keep the way she looked, she wished not to have a new set of parents, she may not like her mother, but that doesn't mean she wishes to replace her, and she mourns for the father She never knew she does not wish to replace him either.
And such, this is the story of the Demi God of Hecate, who ended up in the warring era of Naruto with all of the information of how to stop the war, not the Senju and Uchiha war that wouldn't be stopped until those 2 fathers died, but the war between Madara and the Elemental Nations.
When she ended up there, she found out it was only a day before Izuna would die, She realized she had to travel quickly if she wanted to make it before he would be stabbed so she ran, she ran, she teleported then, she ran some more until she got to the location cloaking herself in her magic which isn't unlike Chakra but not exactly like she hid her self to the perfect moment at the last second right when Izuna was about to be stabbed she threw her hands up placing a barrier in between Izuna and Tobirama before that immediately leaving knowing that she stopped the worst of it from happening she hid herself on the cliff just to be sure she watched as the confusion on each of their faces as she watched as horror came over Madara's face his last brother, nearly died Izuna nearly died.
He stated that enough was enough, he was not going to lose another sibling to this war, he was not going to let anyone lose any more siblings to this war, Madara stated that something would be done, but at the moment, he wished to make sure that his brother was alright, Hashirama had agreed and stated, he wished to do the same before they both left, they said made a symbol of peace before then leaving with Madara stating that a letter would soon be sent to Hashirama tomorrow and something would be done.
She breathed a sigh of relief unknown to her, someone had sensed her, someone had noticed her on the cliff Tobirama watched as the woman he knew to save his rival breathes a sigh of relief, He didn't know the circumstances of which she saved him but he knew that whatever she had done changed something, what changed Tobirama doesn't know yet but he does know the war is almost over no everything might just be done and over with they might be able to live in peace but he doesn't know yet but Tobirama suspects that something else is going on he wishes to know what he can track her but his brother is right next to him.
Tobirama knows that if he tries to go after her he'll be stopped by Hashirama so he waits memorizing her signature the best he can despite realizing that it wasn't Chakra calling it something else entirely what he doesn't know if he can recognize it later. he watches as she follows as she follows Madara and Izuna back to their compound.
he knew immediately that she didn't have harmful intentions she simply wishes to see the one she saved will be alive tomorrow, as such, he left it, be realizing how fragile this peace is, he wonders what will happen next, what will happen tomorrow, and just why he thinks that woman is so beautiful.
Madara noticed immediately that someone was following him however when he checked the person had no hostilities if he was theorising correct this might be the person who saved his brother he made sure to hide his expression as he glanced around noticing a woman hiding her self in chakra first thing he noticed was just how much Chakra she had despite the fact that she was hiding it amazingly well if Madara hadn't noticed she was there before she hid it, he wouldn't have know she was there maybe to make sure Izuna was alive, he's not sure but he checks you as no hostile intention so he simply leaves her be, the second thing he knows about her was just how beautiful she was long black and white hair coating her face coating her head one single strand of grey in the front prominent against the black of the top of her head striking green eyes resemble emeralds, if not for how they glowed.
Nobody knew it yet, but the 3 fates, along with Aphrodite, just created a new string of red string, one that connect 3 people who never thought they would be connected until now, the future was set in stone, there would be no 4th war, there would be no massacre, there would be peace for once.