"Yuki Uzumaki as Irene Belserion"
After Hagoromo told the tailed beasts about Naruto being the child of the prophecy, he told Kurama about a woman, a woman who would conceive his child.
This child would be blessed by him, she will also reshape the world, just like Naruto would.
This woman he told Kurama about was not a beast but a dragon that was once human, stunned and mistreated by her people.
Young Kurama felt bad for the woman who was going to bear his child, he believed no one deserves such a life.
One day, Kurama was raced with Shukaku in the forest but unfortunately he couldn't find him.
Suddenly there was a rustle in the bushes.
He groaned at the movement of the shrub, ready to pound, a beautiful red-headed woman came out of the shrub, she was injured. Then, he remembered the words of Hagoromo
"A woman will conceive your child to reshape this cruel world".
It's impossible, it can't be her, her scars were deep, like the person who fought with the mysterious woman was showed no mercy whatsoever.
Just like he said, a child was born!
A baby girl with hair as red as blood, a smile that could light up everyone's world sun but her right eye looked abnormal, it was of the form of which seemed like a clock, ticked in the opposite direction.
But all good things comes to an end, a certain Uchiha came to take what was"his".
Yuki wouldn't allow Madara to take her source of happiness.
Madara could feel the darkness in her chakra, who was she? More like, what is she?
He hadn't experienced such power since his battle with Hashirama.
Madara underestimated Yuki, she wasn't the average human, her immunity was restored even though she just gave birth to a child.
Lightning came off her body, the wind became ready and the rain started to pour, and baby Y/n started to cry.
Her power was truly perfect, he wanted it for himself, forget about the Nine Tails.
No matter how strong Yuki's dragon form was, the sharingan surpassed it.
Kurama fought for the love of his life and his newborn child.
They fought with Madara, until they were wore out, the rain was pouring.
They were both bleeding heavily.
This was the day Kurama was going to lose everything except for his beloved child
She roared in pain as chains wrapped around her body, Kurama couldn't move, he was frozen, his eyes were everywhere but landed on the baby giggling.
He roared in sadness to see Yuki shrink back down to her human form, and fell on the body.
"When your daughter turns 18, I shall come back, dead or alive, and claim her power as mine, even if it means that I have to take her away from you.", Madara said with a smirk on his face.
Kurama immediately turned human and rushed to his wife.
She was not breathing....so much blood.... she's dead.
Madara knew that he would be vulnerable, the next thing he sees him.
That child was indeed Kaguya's reincarnation.
His wife died with a smile on her face.
He made a vow to kill anyone who set hands on his child.
He took baby Y/n, ran to a cave and there he hide the sadness and misery of his wife's death.
Y/n, on the other hand, Kurama was going to be her shield and protector no matter what the cost was...
P.s-Y/n was born a long time before Naruto, but because she was sealed, she remained. as a baby
Y/n is 509 years old