The Lost Kunai (Naruto x Fate-Stay Night)

Disclaimer: This story is fiction! All the characters, names and places belong to their respective owners.

M-Rated: Just to be safe. There are some really weird and adult moments ^^V.

"Talking"
'Thoughts'
(Thought Bubbles)
"Memory Lane"
"Deep/Dark Voice"
Important Stuff

Summary: His era is over, and it has left him a life full of bitter regrets. How he wished that things should have gone differently, and when he was summoned to another world, he realizes he now has a chance to correct his world mistakes; his mistakes. Is he a heroic spirit? Did he truly deserve that title? He didn't think so, but maybe his new Master would tell him otherwise.

=[A Second Chance]=
A Different Bond

Illyasviel von Einzbern, or simply Ilya, was ready; she'd been ready for some time or so she thought. Unfortunately, she wasn't ready for this. Being left to die in a snowy secluded mountain by Jubstacheit von Einzbern, her grandfather was not what she expected. The Einzbern had put her through some the harshest training possible, all for grooming her to be the next vessel for the Grail, and as the Master who would finally bring the said Grail to the family. It was the only reason for her existence after being abandoned by her father, Kiritsugu Emiya, years ago. She was angry, enraged even, at how her biological father had treated her after her mother's untimely death. And so, she was alone, yearning for someone who she could bond with.

In small hands, she held the slab of rock that the family painstakingly acquired from a temple to use as a catalyst. The Einzbern had cheated as usual by gathering materials from the Greater Grail, which would allowed her to summon the strongest Servant under the strongest Class, provided that she did the ritual correctly. She could not fail. She would not fail. She had been training for the better part of her life for the upcoming war. She was not allowed to fail; her very existence depended on it. Her grandfather would not allow failure…

Ilya didn't understand why her grandfather had thrown her into the frozen wildness with no weapons beside a single slab of rock to defend herself. The air was chilling, and her only attire was the white light dress that barely kept the warmth in.

"Owooooo!"

"…!"

There was hungry howling beyond the dense white fog that surrounded her, hiding the predators within. With panic, the long silver hair girl placed the slab into a magic circle she had drawn on the frozen earth. Prana – power source of magecraft – flowed through her magical circuits while she placed her freezing hands on its edges. Chanted, she did as the circle glow, fueled with necessary magical powers. She would summon the strongest servant under the strongest class, and it would protect her.

"ARH–"

Ilya had failed… a wolf dashed and jumped over her crouching form as its claw slashed across her child-like shoulder staining the white dress. The blow spun her around, forcing her to roll across the snow, dyeing the icy substance crimson with her lifeblood. Painfully, she held her shoulder while gritting her teeth. Steaming mist escaped her lips as she watched the creature of her doom. The wild beast stared menacing while crushing the stone under its feet and sharp claws. The catalyst that she needed to summon her servant was cracked.

"No…" Illyasviel cried as tears filled the crimson red eyes before beginning its descent down both pale cheeks. Failure. She couldn't summon the strongest servant now. She'd trained tiredly so her grandfather would acknowledge her, and to make her father regretted his decision. There was nothing left now as the wolf passed the magic circle. Its luminance faded away just like her only goal. The beast snarled at her, watching its prey before hungry cold breath escaped a prolonged howl. An attempt to summon its kind. They came as called, emerging slowly from the snowy tree line.

"I…" Illyasviel sobbed, scratching the cold snow with her bare hand as the natural mountain's climate had numbed her shoulder's wound. She did not wish to die not matter how depressed she was feeling. But she was weaponless, completely defenseless; her magic couldn't possibly fight all of them. Something metallic under snow gashed her fingers as she dug down deeper. It was a strange weapon, three pointed… a kunai. Where did it come from? Kunai were relic of a long passed era, and shouldn't even be found in this part of the world.

The wolf in front lurched forward as Ilya held the kunai in her hand and slashed it with all the strength she could muster. The creature passed overhead and crashed into the snow behind her. Unmoving while its blood soaked repainted the whiteness of the land. Its brethren howled when seeing one of its own kinds had fallen. Like a signal, they all charged toward her and closing the distance rapidly. Illyasviel ran toward the circle and slammed the Kunai into the middle of the diagram in haste. In her panic, she wasn't really sure what she was doing.

"Any servant will do," the frightened girl begged as she chanted the sequence to activate ritual while blacking her bloodstained hands around its edges. The magic circle glowed once more as it was again supplied with prana. Black patterns on the Kunai followed the gesture, forsaking its invisibility and shimmered, but the girl did not notice. In that instant, Illyasviel von Einzbern felt as if all her magic circuits overloaded, readying to burst spectacularly.

Pain and fatigue immediately replaced her fear as all audible voice was drowned.

The cold winds ran through woods and circling around the girl and her ritual as if it was attracted to something surreal. All the wolves jumped toward her, readying to rip apart their prey in revenge but the swirling torrent of air exploded outward, sending them all flying back. White smoke seemingly appeared out of nowhere and filled the area. Illyasviel looked up and saw a silhouette in the mist as her heart pounded rapidly. A servant was summoned, but which one? Ilya hoped it was a powerful one so she could return to her grandfather with dignity.

The distorted shadow in the mist held his head in great distress as plethora of information flooded his mind. The Grail had stuffed an excessive amount of knowledge into the blond's cranium, ignoring his refusal. Still, it was not as painful as some of the mental torture he had to endure. The pain went by quickly once the input was concluded, allowing him to open his bright blue eyes. He tilted his head once the headaches became only a tingling sensation.

"Strange… this isn't –" the boy muttered as his eyes wandered and piercing through the dense fog as if it was not there. Not a moment sooner, the prone silver hair girl beneath his feet was the focus of his attention. She was bleeding from her shoulder, but the cold had slow down its flow to a snail pace.

"I guess you are my master, I am Naruto Uzumaki, I do not know what class I am," Naruto said, kneeling down so he could check her wounds clearly. An attempt to heal it, he'd tried with his limited knowledge at medical Jutsu. But it was enough to prevent any more loss of blood.

'This is not my world. How did I get here…? Could it be a reverse summoning? An object that can grant any wish? Is that even possible?' Naruto thought questioningly while helping the girl up to her feet.

"Which heroic spirit are you?" Illyasviel asked, looking up at the much taller person. Her expression was a bit more cheerful as the dullness in her crimson eyes vanished. She had summoned a servant, but she did not know which one.

Naruto just smiled at her. It was a sorrowful smile.

"I wouldn't call myself a heroic spirit, Hime," Naruto answered in his own truth. His blue eyes shifted and were full of regret as memory played itself in his mind. His home or what was left of it after the long and costly war. His hand touched his forehead and took off the hitai-ate. He rubbed the symbol of Konoha on it along with several gashes across the semi-rusted metal's surface. Naruto and his allies did manage to kill Kaguya Outsutsuki, but not before she doomed everyone else. His world was destroyed by war, by greed, by… shinobi, and he'd spent his final years contemplating what his world would be like if there was no chakra, no juubi, no jutsu. Would it be peaceful? Would he still be born? Would his parents have lived? Would all his friends still be there? Would he have a loving family?

So many questions with so little answer. And yet, after all the struggles and sacrifices, he wouldn't call himself a heroic spirit. Heroes protected and saved the world from destruction. That was the truth he lived by. While he did defeat Kaguya, the world was destroyed by then, through their fighting, through their hatred and intolerance. Naruto knew he didn't really save anyone, and all his achievements were for naught in the end. Everyone was still died in the end, and he wanted to change that.

If there was an incredibly powerful object that can grant any wish and powerful enough to summon him even though he did not exist in this world then it might have the ability to rewrite history.

"What do you mean?" Illyasviel asked skeptically, breaking him out of his thought. Her reddish eyes looked directly at the blond. The spirit she had summoned didn't consider itself as a heroic spirit? His attire was also strange; there was no armor beside the little metal plate that covered his forehead with a strange symbol with spiraling in the center. He had bright blue eyes and several marking on either cheek seemingly like whiskers.

The wolves' growls in the vicinity startled the girl as she averted her eyes from him to the surrounding area with visible panic.

"I will tell you later, Hime," Naruto said as he ran through some more speculation. A Grail that might have the power to correct his world's mistake, but he would need to win this war… this Holy Grail war. From the knowledge he acquired when he was summoned in this world, he knew he would have to defeat and kill six other servants who might be as powerful as him.

Illyasviel shrieked as the wolves lurched hungrily forward. Their intention was clear from the roars they gave while her back was pressed against him. Naruto looked up to see the immediate danger as several black orbs materialized around him and his master like a protective barrier. The energy construct pulsed with energy and blasted the wolves into oblivion. There was nothing left of the wolves. No blood, bones or fur remained. They were simply gone like being erased from existence. The onyx beams vanished once its task was accomplished, revealing the carved up terrain.

Illyasviel's eyes widen at the devastation caused by her servant's technique. Numerous trees fell over when enforced by gravity as their middle section was missing. Her servant was strong… impossible so as the crimson eye girl held her chest in distress. She collapsed as a huge amount of Prana had just been leeched from her.

Naruto looked at the shivering form of the girl below him. He felt that there was no chakra used in the techinque. He also couldn't feel its presence within him, but something else took its place instead. He would need to ask her about that, but she would need to survive. Plus, she was his master now so it was his duty to serve. He picked her up in his arms gently and noticed the Kunai in a circle with strange markings that was embedded in the earth.

"I never felt so drained… was that your Noble Phantasm?" the girl asked, shivering a little. Naruto did not answer her question and acquired the Kunai with her in one arm.

"Where did you get this?" Naruto asked. It was a Hirashin kunai belonging to his father, Minato Namikaze. Naruto'd lost it against Madara when he tried to use the technique. The elder Uchiha'd used Kamui against him when he threw it. It just disappeared from sight and he couldn't find anywhere after the battle. Naruto'd crafted a different one instead, but this had sentimental value.

"I found it, buried in snow… but I'm glad I did," Illyasviel answered as she cuddled a bit in his arms. He held her in both hands now after putting the Kunai away. Naruto shifted her around so she could be more comfortable, but she was light for someone of her age.

"And I'm glad you did, Hime," Naruto replied, walking away from the spot to a warmer climate.

"Are you really?" Illyasviel asked curiously. She wanted to be acknowledged for doing something right.

"Yes, Ilya-hime. You gave me a second chance," Naruto said with a warm smile. Warm enough to starve of the surrounding chill near them.

The ressurected Sage would win this war and use the power of the Grail to correct his world. Maybe then it would be a better world, and not like what it was when he finally entered his eternal sleep: A dead world. Within his mindscape, the demonic fox growled angrily as its mind became hazy. It'd also been resurrected, but didn't know exactly why as if some madness was influencing its mind, removing all reasons. The fox grew feral as it became ever more agitated.

Author Note:

The story actually was scribbled down when I was following Lucid Berserker by RedhathackerSin, I'm still following that. It's a good story. I'm mixing up Saber's ambition of changing history for Naruto since it's a good motive. Yes, this Naruto is pretty much OP. But this story is shipped as romance, so there is a romance between Naruto and Illyasviel. Illyasviel is actually older than Shirou; that meant she's about 18 or older. The war won't be over that fast even if Naruto could beat up everyone. If you don't know, Illyasviel command seal is in her whole body, that why I didn't state a symbol anywhere. I think her one is unique. Unlimited use, but only one a day.

Naruto's stats… let see… oh yeah, he doesn't have chakra.
Servant: Berserker
Master: Illyasviel von Einzbern
Strength: Varies
Endurance: Varies
Agility: Varies
Mana (Prana): None. Illyasviel provide all of it (for now).
Luck: A+, probably.

Why is it varies? It depends on how much prana channeling through his muscles just like chakra! If a lot, he can flatten mountains with a single blow. It really all depends on Illyasviel.

Personal Skill: A lot. Naruto's a shinobi. He can use Jutsu as long as his master provided the necessary powers to do so.

Noble Phantasm: A lot. Again it might damage Illyasviel when enacted. The problem is when Naruto used it; the amount of Prana it required is insane! Even Illyasviel couldn't supply quickly enough and she has infinite mana. The amount you have and the amount you can channeled does matter! Having a lot but can't channel it quick enough make it bad. Anyway, here are the obvious ones.

Perfect Sage Mode – Anti-Ground (i.e. anything standing on the ground, e.g. infantry)
Kyuubi no Youko (Bijuu Mode) – Anti-Everything! Madness/Berserk Mode!
Six Paths Sage Techniques – Anti-Everything! Might kill Illyasviel in the process!