The Holy Grail War of Fuyuki, also called Heaven's Feel was a ritual that has been ongoing for two hundred years.
It was established by the Tohsaka, Matou, and Einzbern families – The Three Founding Families – with some outsider help, as a means to reach Akasha.
"Everything is ready," a black suit and trench coat called out.
Beside him was beautiful silver-haired woman with crimson red eyes.
They both were standing behind a blond-haired man with bright blue eyes.
He cracked his neck a little, feeling his charka pathway completely healed over the centuries.
The summoning was about to start as he placed Excalibur into the magic circle.
It took a while to find and retrieve it again after he realized the Holy Grail could bring spirit back to life from the moment they died if they were a heroic spirit.
Even if they not, Naruto had ways to force the grail to do his bidding with his full power.
He was literally a God now once he regained his old ability and improved on them.
Unfortunately, he couldn't use Rinnegan to bring back the soul of this world.
He had tried before.
It simply didn't work, so he had devised a different way to do it, by tricking the three founding families to create the magic system that is known as the Holy Grail using rinnegan's working as its basis.
It granted the Grail the power to resurrect souls that was contracted by the World.
All of it was to bring back the once and future King.
"Do it, Kiritsugu Emiya," Naruto stated.
Kiritsugu obeyed and summoned a servant for the upcoming War.
Naruto smiled as the love of his life returned into the world.
She returned the emotion and waited for him to complete his task while her mind flooded with strange information.
Kiritsugu quickly severed the contract with his Servant as the Sage pulled Saber's soul into the well-preserved body.
Arturia finally opened her real eyes and sat up.
She felt she was no longer connected to the Grail, and she had a real body now, so she would continue to exist even if it was destroyed.
"Arturia, my King, welcome back… I may have altered your body a bit," Naruto said with a smile as his wife checked her asset.
He was bored throughout the centuries, so he decided to modify her body for the better.
Kiritsugu Emiya and Irisviel von Einzbern had since left the room rejoining his daughter and allowing the family reunion to go on in private.
Kiritsugu was thankful to Naruto who gave his wife a real body long ago and purged all her connection to the Grail.
"I'm back," Arturia said softly as an eight-year old girl with bright golden hair, and bright blue eyes jumped into her waiting arms.
The little girl looked just like her when she was little, albeit with different eye colour, just exactly how she had dreamed all those centuries ago when she was dying.
"Alteria!" Arturia called out excitedly, showing full joy on her face as she kissed the little girl cheek.
"How did you know her name?" Naruto asked Arturia, but she just smiled told him to figure it out himself.
"Are you going to be cryptic from now on instead of being completely impassive?" Naruto asked as Arturia rubbed her daughter's face.
The girl giggled as she finally met her mother in the flesh.
It took an incredible long time to undo all the damage to Arturia's body while keep the foetus intact.
It took more than a millennium to purge all the magical curses, and to grow the child correctly.
Alteria aged very slowly due to Naruto's own immortality, so raising her was incredibly difficult.
However, Naruto felt that the time he spent was worth it, even though he was annoyed with Merlin's little antic when the wizard was still around.
May he rest in peace.
"Before we go, Alt-chan, can you pull out the Grail?" Naruto asked as his daughter nodded.
"Of course I can, dad," Alteria said with pride as her eyes glowed.
She muttered something, forming energy chains in her hands.
She sent it forward as it pierced through the magic circle that was still connected to the Grail.
After it wrapped around its intended target, it began to pull the Grail through the portal forcibly.
Naruto had a looked at the object before black orbs materializing around him and then moved toward the Grail.
It hummed with energy before blasting the object into oblivion, destroying it forever as it had completed its original and intended purpose.
"Let's go home, hmmm… I owned the whole of Britain since I considered it my home now…" Naruto began.
He had lived in Britain for more than a millennium, far longer than his old life.
Naruto had a smile crept across his face.
"So, if you want to be King again, I can make it happen," Naruto offered as Arturia hugged her daughter in a loving embrace.
Arturia looked at her husband before shaking her head.
"I have spent much time contemplating, and I found that one lifetime as King was enough… I want to spend this new one with my family instead.
Let whoever is King now do his job," Arturia denied the offer as Naruto smirked.
"Actually, there's no King right now. It's a Queen that sat on the throne now… gender has no bearing on the ability to rule as everyone finally figured it out. One of the previous Queens that govern the country had brought England into the peak of its power," Naruto pointed out.
Arturia was stunned.
Seemed like a lot of thing had changed, and she will check them all out in good time.
For now, she just wanted to spent time with her family, it been far too long. She just smiled afterward.
"Shall we go home, my King?" Naruto asked as Arturia chuckled.
"Are you still calling me that?"
"My vow still remained, and I shall fulfil my oath till the day I die," Naruto said with a wide grin as Arturia pulled him closer.
"Let me serve you in this life instead," Arturia said.
Naruto blinked. He nodded slowly, and they share a kiss as their daughter hugged them below.
They left the hall afterwards and returned home – to their massive castle somewhere in England.
Naruto wondered if he should tell his wife about how history messed up her legend and assumed that she was a man instead as that seemed more plausible.
Furthermore, his own Legend as the Crimson Knight was intermingling with her, so history noted that they are both one and the same.
Naruto thought for a bit about that then decided against it since that will be one long and awkward conversation.
Plus, they have plenty of time after all to play catch up.