Author's Note: Ya know I was originally going to do a Digimon Tri rewrite for my next fanfic but then we ended up with this because honestly Unlimited Blade Works is the dopest superpower possible imho. Also apologies for my brain occasionally mixing up the two translations (Unlimited Blade Works and Infinite Sword Creation), I try to catch it and fix it to keep things consistent.

But anyways my hours at work should be going back down to better levels for continued writing soon.

And I am shocked at how much positive reception I've gotten on what was essentially a random lark I wrote out. I may bounce between this and the My Hero crossover for a bit while I map out my other works.

Funnily enough if I give Liz a November birthday, Shirou being born in May causes this to line up quite well.

Chapter 2: Recreation

By age twelve Shirou had somewhat gotten into the flow of balancing enjoying a second childhood with preparing himself for his future of heroism.

For example today was his twelfth birthday and he was really looking forward to getting home and doing some light karate practice with his grandfather while they waited for his father to get home from after school grading and then going out to his favorite pizza joint.

Both Jim Moritas, senior as well as junior, believed in healthy food choices so pizza was a bit of a luxury food only for special occasions.

Of course as he was getting out of the subway after chatting with his friend Liz Toomes for a few stops a giant hole had to open up in the sky and aliens had to start flooding through.

And it was one thing to intellectually know aliens existed, Shirou had known this since he read the description for being an Inhuman before his reincarnation had fully processed.

It was quite another thing to have a swarm of them flying in your general direction firing laser guns and for you to not have any of your preferred means to defend yourself.

Ducking for cover back down the stairs Shirou really wished he had at least access to a few weapons.

And as dust and concrete were kicked up by lasers striking uncomfortably close, Shirou thought to himself that he would quite possibly kill for access to Rho Aias.

There was screaming, so much screaming. People were screaming in fear, in pain, in anger.

He froze up, it wasn't like him, not in his old life, but it had been over seven years for his mind to get used to a much softer life than he had lived, and died in, during the Grail War.

He had thought he would have more time. He had thought he would be prepared. He didn't even have a taser or a kendo stick to fight with. His powers were nowhere to be found. Magical Circuits didn't seem to be how magic worked here, he knew he had tried to force some open and nothing had hap-

His train of frantic and panicked thought was cut off when he heard a child crying out in pain and fear. He stood up, partially out of the stairs down into the subway and saw, not thirty yards away, a young darker-skinned girl, who couldn't be more than two or three years younger than Shirou, was trying to push herself up off the ground holding a hand to her bleeding temple.

Suddenly, and thankfully, years of older ingrained instincts finally took over and Shirou was running over to help her up.

"Can you stand?" he asked as he, agonizingly slowly in this situation, pulled her to her feet.

She looked up at him and frowned and then pointed to her ear with her free hand and started to...sign! She was signing at him, one handed because she was still trying to staunch the bloodflow with her other one.

While it wasn't one of the languages Shirou had picked at character creation, he had actually after establishing himself as a 'prodigy' tried to learn a few the honest way and really only some decent American Sign Language had stuck.

So quickly he told her to hold onto him and he would get them to safety. Or at least he thought he'd done that sequence right, she seemed to nod and accept it at least.

Unfortunately helping a nine year old girl limp thirty yards was much more difficult than running that distance and around when they were halfway back to the subway entrance he heard something behind them and turned his head only to see an alien on some kind of hovering vehicle bearing down on them.

"Get down!" He thoughtlessly yelled while pushing the girl back onto the ground and dropping to cover her with his own body.

However as he closed his eyes ready to die, Shirou was sure that that higher power would be quite put out with him for dying before things could get 'interesting', his E-rank luck actually took a turn for the better for once.

Instead of being disintegrated he heard a mighty clang as the energy bolt struck something else instead.

Opening his eyes and turning around he saw a figure out of his grandfather's war stories standing before him in all of his star-spangled glory.

Captain America himself sent his shield soaring into the alien, knocking it off its speeder, and then ricocheting back into his hands.

"Are you alright, son?" The man said, slowly turning around.

"I can cover you as you get the girl back into shelter! But we have to move if you can,"

"J-" Shirou really was floored and acting out of sorts, this was one of the few men of this world he had heard of that he could call a true hero, "My grandfather, Jim Morita was a Howling Commando!" he finally stammered out as he helped the hearing impaired girl back to her feet.

This took the man aback for a second, "Jim's still around?"

This pause, as well as Captain America turning to look at him more closely, gave Shirou an opening to see the famous shield in all its glory.

And something inside him clicked. The stress, the danger, the near death experience, and finally the exposure to a weapon of great history and power had finally flipped a switch inside of him.

Suddenly just by looking at it he could sense the history radiating off of it, and he reached out and gently brushed a finger over it, "Wow," was all Shirou could gasp as his mind was temporarily flooded with the shield's psychometric memories.

Steve Rogers however, misunderstood, "Son, I know you're in a bit of shock right now, but we need to get you and the girl to safety, I'll come see Jim after this is all over, copy?"

The authoritative and military tone, one often used by his grandfather when he was visiting and Shirou was lacking in discipline, snapped him back to the present.

"Sorry, yes, of course!" Stammering again, he felt it was so unlike himself, but he had seen that shield's entire history just then and was in awe of some of the images and impressions he had whirling around his mind.

The Red Skull. The Cube, no the Tesseract. The Hulk, Iron Man, THOR, there were gods here as well! Or perhaps just more aliens? It was all jumbled and, he was spacing out again so instead Shirou shook his head and helped the girl stand up once more and Captain America led them safely to the subway once more.

After a few minutes of telling them to stay down and stay safe, Captain America left once more, but Shirou's mind was still reeling.

Huddled down in the subway with the girl and ten other survivors Shirou sat, and waited for the professionals to finish their jobs.

And it grated on him every second of it.

Until an explosion jostled the walls of the subway tunnel and a few of the survivors screamed out in shock or fear, attracting the attention of the two wounded aliens whose speeders had just been shot out of the air by Hawkeye.

They seemed to have lost their main weapons at least, but it didn't stop them from having a wicked long and jagged dagger of space metal drawn as they entered the subway searching for easy pickings.

A few of the survivors shouted and ran further into the subway, but unfortunately many of them were injured and couldn't flee.

"Leave now!" Shirou stood and shouted at the two aliens, while strafing the group of survivors in a way that the aliens wouldn't be focused on them as they looked at him.

The creatures seemed to let off gurgling chuckles at his statement, whether they understood his words or just his tone was not too important to Shirou at the moment however, because he was shifting into a combat stance.

"If you want to get to them, you will be coming through me! I froze up earlier and that was unacceptable. I don't mind losing to someone, but I refuse to lose to myself!"

They definitely understood the tone, Shirou mused to himself as one snarled and lunged at him.

He was able to deftly grab the aliens wrist and twist and slam the creature into one of the tunnel's support pillars, stunning it for the moment.

But the other one hadn't been far behind, and as Shirou turned to face the creature he realized he was too late for a proper disarming or disengaging maneuver. The alien's dagger was less than a foot away and as Shirou realized this time felt like it slowed to a crawl.

A strange feeling, both familiar and new, overcame him and he found his voice screaming, "I AM THE BONE OF MY SWORD!" as an unadorned and silver version of Captain America's shield formed in place upon his arm and he deflected the dagger with a ring.

He could feel it again. It was just a drop from the ocean, but he could feel something akin to his Reality Marble.

There was something inside of him, and that thing inside of him had a Shield, it had The Shield.

It wasn't a Sword. But he was using something instead of Od now, and his Reality Marble both was and was not Unlimited Blade Works now.

A swift kick told him the aliens were too well armored for hand to hand, so he slowly backed away with every blow, leading it into a trap.

And every blow he blocked led to him blocking the next one better. It was not quite the instantaneous proficiency he was used to, but to use the analogy that the higher being had given him, it was like his leveling of that proficiency was accelerated.

Normally he should have been able to immediately use the shield almost as well as the Captain, but as he was now just blocking properly was a small miracle, needless to say he had not felt the non-existent shield-jutsu was a martial art he needed to invent before now.

But he was growing in the moment, and was just barely prepared when the second alien regained its bearings and charged back in.

Honestly the timing could not have been more perfect.

He felt he understood The Shield just enough to pull this final trick off.

Because in a way he was lucky that this was the first weapon he traced into his mutant power version of Unlimited Blade Works.

Because this was The Shield, it was a perfect embodiment of everything a shield could be without being magical. The alloy, vibranium apparently, was the perfect material for a shield, dispersing and absorbing energy and vibrations, and it was perfectly aerodynamic.

So as the two aliens charged him he surprised them by leaping forward in a soccer slide and chucking the shield at the pillar he had previously sent the alien into.

The shield ricocheted off and slammed into the backs of the bunched of aliens and sent them flying out over the subway tracks and onto the third rail, electrocuting and killing them as he let the shield disperse out of existence.

All in all Shirou felt that his first experience with his mutant power had turned out quite well.

It wasn't a sword, but it would do.