(y/n) POV

"Well it's nice to finally meet you... Lady Irisviel von Einzbern." I said, "It's very nice to meet you as well (y/n) Emiya, Hiro Emiya, Tohka Emiya, Sakura Matou, and Tatsumi Kitano." Irisviel said, "I'll be blunt. Drop out of the grail war." I said, "Now why would I do that?" She asked, "As a favor." I said, "Your a homunculus right, and your base should be the blood of your predecessor the one who was married to my grandfather, Kiritsugu Emiya." I said, "You're a smart boy, but you have no poof to support your claims that you are Kiritsugu's grandson." She said, and with a few words I completely convinced her.

"Now tell me (y/n) do you consider me as your grandmother even though I am not the Irisviel your grandfather married?" Irisviel asked, "Yes, If I didn't then I wouldn't be here." I said, "Tell me what is your wish?" She asked, "I want to fix my family." I said, "Wrong, you've already done that, now what is your wish?" She asked, "I...I want Summer. I want her to stay by my side forever!" I said, "How childish, but I suppose that it's a fitting wish for someone your age." She said, "I will support you in your battle against Rin Tosaka." She said as she walked away.

Irisviel POV

'So these are Kiritsugu's grand children.' I thought, "Irisviel!" (y/n) said as he walked over to me, "Yes (y/n)?" I asked, "I'll bring you your weapons later." He said, "I don't need a weapon dear." I said, "Your getting a weapon!" He said, "I just want to keep everyone in my family safe." He said, "I'm sorry my dear, I forgot you have abandonment issues." I said as I hugged him, "I just want everyone to survive this." He said, "I know and (y/n) if you'd like you may call me grandmother." I said as I petted his head.

Rin POV

"Seeing Shiro again threw me through a loop, but I get it now. Darling (y/n) just manifested the memory of hid dear departed father. Now that I understand his trick I wont get blindsided by it again." I said, "Master it's ready." Lancer said, "Good, I want Tohka, Hiro, and (y/n) brought to me, Tatsumi killed, and I want Sakura killed at a torturous pace." I said as I got up and looked out at my skeletal army.

(y/n) POV

"Here you are grandma." I said as I handed her the gauntlets Summer made her.

"Well I appreciate the sentiment, but the color could be better." Grandma said as she used her magic to make the gauntlets white. "(y/n) I would like to teach you a magic you must never use." She said.

"And that is how you can slow time by accelerating your body." Grandma said, "B...But if I would use this I...I'll die, and if by some miracle I do survive then I'll just be a burden on everyone!" I said, "Yes, so if you must use it make sure that you are positive it will be worth it." She said.

"Alright let's go to war!" Hiro said, "Yeah no." The rest of us said, "What?" He said, "Hiro if we rush into a fight like this, then you will be the very first to die." Grandma said calmly, "What! Why me?!" He asked angrily, "Because your mother isn't just going to forgive you for attacking her." Tatsumi said, "Only if she can get to me. That's what you were going to say right?" Tohka said, "N...No!" Hiro said in embarrassment, I couldn't help but laugh, "Wheat's so funny pipsqueak?!" He asked angrily as he picked me up by the collar of my shirt, "I'm sorry it's just we're finally sounding like a family again." I said as he put me down, "I guess you're right...baby brother." He said, "Hey (y/n) you wanna be a bit more like me and Tohka right?" He asked, "Yeah!" I said, "Good cause I'm gonna teach you how to use the gundr shot." He said as he dragged me off with.

"It's a bit too weak for my liking, and it's so unrefined that it's not even funny. But you never were very good at other magic other than your thought projection." Hiro said, "Thank you Hiro!" I said as I gave my big brother the very first hug I had ever given him, "Hey knock it off, i...it's my job to help you out when I can isn't it." He said, "No that's Mom and Tohka's jobs, your job is to keep me safe." I said, "Well we only have twelve hours left before the war ends according to you, so let's go end it." He said as he ruffled my hair. 

At about three in the morning we arrived at the spot where Rin had attacked us before, it was raining at the time so it wasn't the best conditions for any of us, but I liked it since it was fitting, this time she was waiting for us. "Hello there kids. I'm feeling generous this morning so I'll give you three one and only one out. Give up on the grail war, and come back to mommy. If you do that then we can be a family just like you always have wanted." Rin said, I snapped my fingers and Archer fired a single shot at one of the skeletal warriors, "How about no." I said as I drew Senbonzakura. We sent the servants out first to take care of the army, Archer, Caster, and Summer all stayed back with us mostly because they could use long ranged attacks, but also because Summer was detrimental to winning this. "Master." Atalanta said, "Go ahead, just try not to hit any of our allies." I said as she nodded and activated her Nobel Phantasm "With my bow and arrows, I respectfully ask for the divine protection of the sun god Apollo and the moon goddess Artemis. I offer thee this calamity — Phoebus Catastrophe!" She said as she knocked and fired two arrows into the sky leaving a glittering trail behind them as they flew, a few seconds later hundreds of arrows of light rained down on the enemy, but it didn't do much to their numbers. Suddenly Hiro began shooting with his rifle, "I cant just sit back here and do nothing!" He shouted as he ran out and transformed his rifle into a sword. He cut down skeletal warrior after warrior, but eventually their sheer numbers overwhelmed him and the servants, Atalanta couldn't use her Nobel Phantasm since there was no guarantee that she wouldn't hit our allies in the barrage. "Hey don't worry (y/n). It's my job to keep you safe and to make sure you get through this thing." Hiro said, suddenly the majority of the army disintegrated. 

Hiro POV

"Hey don't worry (y/n). It's my job to keep you safe and to make sure you get through this thing." I said, "Accelerate." I said, suddenly everything seemed to stop. The rain looked frozen in air, the skeletons stopped moving, and every sound stopped. "So this is it, slowing time by speeding up my body. It feels strange." I said as I infused gundr into my blade, "This is my new technique Mother I hope you like it!" I shouted as I slashed horizontally in front of myself, "GUNDR SLASH!" I shouted, the wave of black and red energy flew through the enemy before vanishing, "AGAIN!" I yelled as I slashed repeatedly around me until my mana ran out and time resumed, "I'll leave the rest to you...(y/n)." I said weakly as I fell to the ground and passed out.

(y/n) POV

"HIRO!" I shouted, "(y/n) dear, he made an opening for you. I suggest you take it." Grandma said as Summer grabbed me and ran towards Rin, "(Y/N) LET'S END THIS SO THAT HIRO CAN GET THE HELP HE NEEDS!" Summer said, "RIGHT!" I said.

We stopped before we reached Rin. "Summer I need you to take care of Lancer, I'll take care of Rin!" I said as I ran past Lancer. "Well well look at the brave little boy who thinks he can beat me!" Rin said as she fired off several gundr shots at me, I slashed through the shots and fired off several shots from Senbonzakura, "I'LL BEAT YOU AND THEN I'LL END THE GRAIL WARS FOREVER!" I shouted, "Sure you will sweetie, but tell me who will save your mother?" She said causing me to look back at Mom who was being attacked by several skeletons, suddenly my sword was gone "You're finished sweetie, but don't worry I'm not going to kill you. I'm going to alter your memories and fix my family just like you always wanted." She said as she hugged me from behind, "DON'T TOUCH HIM!" Summer yelled as she threw Rin off me, "I'm sorry (y/n) I couldn't finish Lancer, but her lances are broken." She said, suddenly a red lance emerged through Summer causing her to vomit up a lot of blood, "I said you wouldn't win and I meant it!" Rin said, "I...It's a good thing I grabbed this." Summer said as she revealed Senbonzakura, "I'm so so sorry (y/n)." She said, "S...Summer?" I said, suddenly two of my command spells vanished and the other servants vanished as well. "Bye sweetie." She said as she stabbed through herself to stab Rin through her heat. Suddenly the Holy Grail appeared behind me, "D...Do it sweetie make your wish." Summer said weakly, "O...Oh great omnipotent wish granter, I humbly ask that you hear my wish and fulfill my desires! I humbly ask that you..." I began to say, "PLEASE SEND (Y/N) EMIYA TO REMNANT!" Summer shouted, "Summer?" I said, "Sorry, but I had to keep my promise. (y/n) when you get to Remnant look for Tai Yang Xaio Long, Qrow Branwen, or Raven Branwen, they'll help you. Just tell them that the White Rose sent you and please tell my kids I love them." She said with a warm smile, suddenly everything went white, and then I saw it, the root of all magic. It wasn't anything special just a bright blue shining light, but it was beautiful. And as I passed through it everything became more clear and confusing. Then I found myself sitting out in the snow. "Summer?" I said, "Hey are you lost kid?" A man asked, "S...Summer where did you go! This isn't funny Summer!" I said, "Hey kid are you ok? Why are you looking for my wife?" He asked, "S...She told me to look for someone, b...but I...I cant remember who! I...It hurts, it hurts so much!" I said as I fell to my knees, "Look kid my name's Tai, I'm going to get you some help." He said as he picked me up and carried me off.

A few days later Tai learned that Summer had died, and I learned that several months in my world was only a few days here. Tai tried to look for my parents or relatives even though I told him that I wasn't from his world, and when he couldn't he took me in. He wasn't really in the best state of mind at the time, but Ruby and Yang were nice I guess.

"Hey (y/n) what are you doing down here?" Yang asked, "I'm making a makeshift alter. Hopefully it'll be enough to get me home." I said, "Ok whatever you say." She said.

EIGHT YEARS LATER

'Trace on.' I thought as I traced the base structure of a broken laptop that one of my classmates had asked me to fix. I soldered a new intel processor into the laptop and put it back together, "There don't overload the processor again." I said, "Who is that guy?", "What that's (y/n) Emiya. He fixes literally everything, but he always has that same uninterested expression on his face no matter what he's doing." A few girls muttered as I walked away, "Hey bro." Yang said as she put me in a headlock, "Yang let me go. I'm busy." I said, "NOPE! You need to relax! Maybe if you did you'd get a girlfriend." She said, "Whatever." I said.

It's been eight years since I arrived in Remnant. After two months of trying I gave up on trying to get home and started training my magic, I learned how to trace things from a distance, I called this Ranged Tracing, how to trace continuously after I touch a person or people, I called this Quantum Tracing. I was never really interest in anything that was going on with other people unless it involved Yang, Ruby, Tai, or Qrow.

"I'm home." I said as I entered the house, "(y/n) what's this?" Tai asked as he held up a book along with my ceremonial dagger, "Why are you messing with my stuff Tai?" I asked calmly, "(y/n) I just want to know what's going on with you, you're like a son to me. I let you keep your last name, I let you do what...whatever this is down in the basement, but all I ask is that you just don't let it consume you again! And that's exactly what it's doing." He said, "Yeah yeah, so what now are you gonna have me locked up again?" I asked, "No, I'm still trying to figure out how you got out last time though, I'm going to let you have one more chance, I'm not saying stop just take a break alright." He said, "Alright I'll give it a rest tomorrow. Is that alright with you?" I asked, "That's fine." He said.

"Alright it's two thirty in the morning and my magic power is at it's peak. I'll begin the ritual now." I said as I picked up a knife, and walked over to the ritual site and cut my hand and bled onto a piece of cloth that belonged to Summer. "I am the bone of my sword Steel is my body and fire is my blood I have created over a thousand blades unaware of loss, nor aware of gain withstood pain to create weapons, waiting for one's arrival I have no regrets. This is the only path, my whole life was unlimited blade works!" I said as I dropped my blood onto the summoning circle, "NOW COME FORTH MY SERVANT!" I shouted as the the circle began to glow bright red, suddenly a woman appeared in front of me and my command spells appeared on the top of my right hand, "Welcome back... Summer." I said.

THE END