Disclaimer: I don't own Hero-Aca.

This is an Alternate Universe-fiction where Izuku holds both "One for All" and "All for One" as quirks. This pilot will show the concept of how Izuku makes All for One work. The following scenes are purely fictional and aren't in the manga or anime.

I hope you enjoy this story! If you do, read the very bottom for some important info!

Chapter One – Pilot

My name… is Izuku Midoriya, and my dream is to be a superhero!

I want to be somebody for people to rely on, to look up to, and to believe in, just like who All Might is to me. But to do that, I need a quirk, or rather, an amazing ability that'd bring my dreams to life.

Super strength, super speed, hardening, telekinesis… the abilities that have appeared in our world were endless—

Fire, lots of fire. If there was one thing Izuku Midoriya could note from the scene, it was the intense heat that burned the area. Pure, blinding red and orange glowed through the night sky. He wouldn't be surprised if the rest of the area crumbled and burned down before the sun rose.

My world came shattering to the ground when the Doctor told me I was quirkless.

My dreams were crushed, and I couldn't find anyone, not even my own mother, to bring me the support I need, the words I desperately needed to hear to save my passion, before it was lost: "You can become a hero— "

He held his ground in an alleyway located from a branching city, miles from Hosu City. His outfit once again ripped open despite the upgrades he and Mei Hatsume worked on.

Sweat dribbled from his skin, battling the heat as he struggled to remain calm and focused.

It took years of resentment, from my peers and grown-ups, to keep this dream from fading. Thinking about it now, I'd like to believe that I'm just very lucky, to be honest.

Had I not met All Might, taken his training, and finally received his power, 'One for All'—

Calm. That was a joke and he knew it. Really, he was terrified. His mind running a thousand miles an hour. After all, he knew who was after him. Him and—

I wouldn't have my very own quirk appear in the first place.

It was going to be hard, but I was very happy nonetheless. After all, my dream, of becoming the Greatest Hero, was slowly starting to become a reality.

"Deku! Get back here and face me, you goddamn copycat!"

Flakes of fire blew in the wind, but that wasn't enough to distract Tomura Shigaraki from his mission. He stood on top of debris of a once standing building, long since evacuated. Truth be told, he was mad, if the constant scratching on the underside of his neck was any indicator.

"Izuku… Midoriya…" He whispered hoarsely, his neck slowly turning red from the constant scratching, as his shoulders starting shaking,

"You damn brat… You damn cheater! Can't even stand to face me. Stealing the bait and making a break for it…" His scratching stopped, "I'll break him."

"Tomura," Kurogiri, coming through his own warp gate, phased next to the man in question, arms firmly behind his back, "Perhaps it'd be wiser to return back to base. Other heroes are making their way to this location as we speak."

"Tsk." If it wasn't fast enough, Tomura scratched his neck even faster, before finally blowing a fuse, "Noumu!"

On cue, three 'Noumu' of different shapes and sizes appeared. Some with wings, others with elongated arms. But one that stood out was an incredibly buff, all-black Noumu that stood like an ape: Almost like the same Noumu that attacked USJ before.

Tomura pointed towards the streets, "Enough games. Find them." Instantly, they launched out

"Tomura, I insist that we head back. Going so far just for a kid is ridiculous." Tomura turned his body slightly towards Kurogiri, "Any further and we will really risk exposure— "

"Kurogiri, if you don't stop nagging, I will kill you on the spot." Tomura's intense glare held no room for argument. Kurogiri stood tense as Tomura pulled out two pictures, one of Izuku Midoriya, and another of him and—

"What are you talking about, Deku-kun? I think I quirk like that… is super-amazing!"

"Hah… Hah…" A weak voice was next to Izuku, and he looked down grimly at the figure next to him, his head pounding.

"U-Uraraka-san… oh my God…"

Laid next to him… Was Ochako Uraraka, the girl that he's known since the first day at U.A High. Her hero outfit was battered and torn up, and her body was limp. However, the worst of her features was her arms, as patches of her skin… were decayed as muscle was shown.

Just looking at it made Izuku feel pure, cold rage towards his enemy, towards Tomura with his dreadful quirk. It wasn't unheard of for a villain to capture somebody close to a hero, just to spite said hero. Still, it was rare and, especially for both Izuku and Uraraka who were still in U.A High, it was not expected.

Trying to kidnap Uraraka, just to send him a message, made him rivet with disgust. At the same time, an unbridled amount of fear rose within him. Will Tomura do it again? And with whom? Another one of his classmates? Him mom, of all people, could be the next target.

"De… ku…"

"Ah!" Izuku let out a sharp gasp. Was he mumbling again? Now was not the time! He moved immediately to her side as she tried regaining consciousness, "Uraraka-san, please don't move too much, you're— "

"You really came for me… huh? That's… good." Ochako started to speak, and Izuku immediately cut his words short, "Even though I told you, that it was a trap… You really are… stubborn, sometimes…" her body tensed as another wave of pain came over her.

"Th-That's… Of course, I'd come back for you! There's no way I would just sit around and— "Ochako's eyes started watering up, as she looked away.

"You've already done so much for me Deku…" her eyes closed, as feint memories arose: The Entrance exam, battle training, and his support during the tournament being prime examples.

"But," Ochako shook her head, "This time, you should've let the pros handle saving me…" she lightly glared at him, choking any words that Izuku might've had to say, "If this keeps up, you're… really going to get yourself killed!" Uraraka stiffened after saying this, almost out of regret.

Izuku froze up. While she wasn't wrong, this wasn't like Uraraka. She was never this pessimistic, or at least, never in front of him. He would love to blame Tomura for it, but he was smarter than that.

"Uraraka— "Izuku tried to speak, but Uraraka shook her head.

"No, don't apologize, I… I'm sorry. That didn't… come out the way I wanted it to." Izuku blinked at her change of tone, "Now come on, we have to find a way to—Ghh!"

Izuku immediately snapped out of it, and held Uraraka down, "W-wait, hold on! You're wounds, they're…"

"Ah… that's right," Uraraka winced, passing a glance at her damaged arms, "I really… can't move like this… Deku. Heh… Heheh…"

"I… figured" Looking down at the injuries themselves, his mind rattled once more, 'At any rate, the villains will reach this spot and catch us. I could carry her, but I'll risk injuring her if I use One for All…' After saying One for All, almost instinctively his mind rested on his other quirk:

All for One.

"Uraraka-san, please! Teach me how your quirk works!"

"Young man," Yagi Toshinori, or rather well-known as 'All Might' began, "I was hoping to talk to you about this at some other point of time, perhaps when you held a better grip at using One for All… but seeing your new… quirk in development, that is a route I simply cannot take."

"Wh-What are you talking about, All Might?..." Izuku spoke with bated breath, unnerved with how serious his tone is.

"Your new quirk… It already has a name: All for One. It's a quirk that gives you control over other quirks. Once you claim somebody else's quirk, that quirk is yours to keep. No strings attached. Or, at least, as far as I know" Despite how powerful this quirk sounded, Izuku couldn't help but feel uneasy with All Might's conviction.

"That's amazing, b-but," Izuku carefully tried to word what he was going to say next, "How do you already know about this quirk? D-does somebody have it as well? Who?"

'Izuku Midoriya, you're cunning once again surprises me…' "I'll be frank, Midoriya. Your quirk… is the same as my Arch-Nemesis, the Anti-Symbol of Peace." Izuku's eyes slowly widened at the news, as Yagi continues,

"He refers to himself by the name of the quirk, All for One. He is… an incredibly powerful foe. He was the one who gave me," he pulled up his shirt, revealing his scar, "This nasty wound, right here." Yagi finished

Izuku reeled back at the revelation, and tensed at the implications, 'No way… then this quirk… is the same as All Might's sworn enemy?... To think I'd have a quirk like this suddenly appear— 'And then Izuku's eyes widened,

'Wait… does All Might… despise me now, because of this quirk?!' Izuku almost felt the need to jump out of his seat!

"A-All Might, I— " All Might suddenly held up a hand, cutting the boy's apology short.

"Midoriya-kun, I can already tell what you're going to say. I'll be clear to say that, despite this new quirk you have, my opinion of you has not changed!" All Might said proudly, and Izuku's faced turned into that of comedic shock.

'Di-Did All Might just read my mind!?' he exclaimed in his head, as Yagi continued.

"Indeed, with this new quirk, you will turn out to be quite the disciple! One for All's power will crystalize like no other! Hahaha—Bweh…" Yagi promptly puked out blood after his bellowed laughter, causing Izuku to panic.

"Still though, it's hard to believe how differently your quirk works compared to All for One's—Er," Yagi quickly noticed how difficult it'll be to keep referring his enemy by his quirk's name, "My Nemesis's quirk. Young Midoriya, care to explain to me again how your quirk activates?"

"O-Of course! Although it's, uh, a bit hard to word out. I'll try to explain the best I can!"

"I feel like I'd just be taking everyone's individuality. Everyone will hate me…"

"Uraraka-san!" Izuku's tone had a bit of command into it, snapping Ochako into attention.

"Y-yeah!?" she immediately replied, and the tips of Izuku's ears started heating up.

"Do you… Do you trust me?!..." Izuku asked, and Ochako became confused.

"Deku, why are you asking that all of the sudden— "

"Because I will be using my quirk," his eyes shone with confidence, "To heal you back to health!"

"Eh?" Ochako became surprised at his statement, "Can you really…?" she began, but realizing there was no time for doubt, she shook her head.

Slowly, Ochako's face turned confident, with a light blush and a bold smile to boot, "I don't get it, but I trust you, Deku-kun. Please take care of me!

"R-right, I will!" Deku's face also turned red, but for different reasons.

"That's not true at all, Deku-kun! Don't you know how the saying goes? Something like, uh… Ah! 'Imitation is the sincerest form of flattery', right?"

One for All's power was personified by a single, glowing star, growing stronger with each passing holder, shining bright in a void of empty space.

All for One was like a vast galaxy of stars; dim and glowing in the distance, just ways away for one to simply reach and grab hold, only to individually shine bright with each quirk acquired.

Yagi turned surprised as Izuku explained, noticed the stark differences and parallels to how each variant of All for One worked. He began to wonder if the way his nemesis has acquired his powers (by forcibly removing their quirk, and with it, their strength) was just the easier route he took simply for being a villain. Or maybe Izuku just had his own way of acquiring quirks that didn't harm his peers in the slightest.

Izuku's way, however, was undoubtedly harder. The challenge, however, was much more fitting for somebody that was growing to be a great hero.

"So, um… the way my quirk works—Or, rather, the way I make it work, is like this." He brought out one of his notebooks, titled "Hero Analysis Vol. 13", one that was battered and burned by Bakugo back before he made it to U.A High,

"I've been writing books like these ever since I've wanted to be a hero—thanks to you I might add, All Might!"

The hero in question was simply unfazed, so Izuku continued, "A-Anyway, I've been writing about heroes for so long that I've almost memorized every page up to this point. And even now, I'm writing about my classmates and their quirks, their abilities, and I feel their potential just buzzing in my brain!"

"…I'm not sure this relates to how your quirk activates, Young Midoriya…?" All Might begins to wonder if Izuku's beginning to mumble again at this point, and Izuku shakes his head.

"No no, I haven't got there yet! When my quirk activates, I just think about the page of the hero I want to be… and just rip the page right out of the book! —"

*rrrrRip!*

"Just like this?" Yagi tries to interpret what he's saying, but ends up ripping one of Izuku's pages in his notebook. Izuku's body shakes at the sound, and tears immediately form in his eyes.

"Aaaah! No, not physically! All Might!?" Izuku cries out, snapping his book back into his arms, and Yagi, realizing that he screwed up something fierce, starts sweating.

"Ah, crap, my bad, my bad! I'm really sorry, Midoriya-kun!" All Might furiously apologizes, before rubbing his neck, "Really, this quirk is incredibly important to understand, young man. Please understand how important this is."

"Right, I'm sorry!" In the end, it was Izuku that ended up apologizing, before he glances at the page that was ripped out. A smile ended up forming in his lips, "…this'll be perfect." Izuku showed the page to All Might, "All Might, can you see who this is?"

"Hm?" Yagi glanced at the page, and noticed the figure's angry expression, and the way the costume seemed to explode in different directions. Ah, explode huh? "This is… Katsuki Bakugo… san, isn't it?"

"Yeah, that's right. This is Kacchan. He and I were childhood friends for the longest time." Izuku twiddled with his thumbs, as the page rested on his knee, "I've followed him ever since we met, and he ended up with such an awesome quirk. I couldn't help but be awestruck at his ability… so I memorized his ability, and wrote it down: wrote down the applications, the raw power it could bring, the source of where it comes from… so on and so on…"

Izuku then held out his arm, "And thanks to that…"

Izuku's hand started crackling, as small explosions harmlessly lifted off his palm, "I have an easier time using Kacchan's Explosion quirk, more than anyone else's quirk I believe…"

"Oh!" Yagi marveled at the display of the quirk that didn't belong to Izuku, before looking up, "Why don't you use it more often, if it's so easy to use?"

"It's…" Izuku's expression turned grim, "A long story…"

He shook his head, "But anyway, like I said before, I just rip the page of the book—I-inside my head, I mean! Then the quirk will appear! There's a few more complications after that… but that's the just of how All for One works for me. Heh heh…"

Stressing one part of his statement, he wraps up with an awkward laugh as Yagi processes all this info.

"You've done so much for me, Uraraka-san. At least… let me repay the favor!"

Briefly, an Image of Recovery Girl passed Izuku's thoughts, as the page he held for her inside 'Hero Analysis Vol. 13' came into his mind, with her quirk and all its features.

Grabbing hold of Uraraka's shoulders, he brought her up into a sitting position, despite her protests or her condition.

"Deku? What're you— "Wordlessly, he moved closer toward Uraraka, or rather, leaned closer toward her face. Their noses briefly touched, before—

Izuku kissed Ochako, on the lips.

For a moment, Izuku stayed there, as the soft crackle of fire was the only sound both heard. Ochako's eyes were wide in shock, her mind unable to think, let alone back out of the situation.

After what felt like forever, Izuku pulled away, and noticed the green aura around his partner, her wounds healing quickly. He breathed a sigh of relief, "Thank goodness."

"De— "his eyes opened, as he glanced at a blushing, almost furious Ochako who trembled ever so slightly, "De… Dekuuuuu~!"

Only then did he realize his actions… He KISSED Ochako!

"I-I-I-It's not—I mean, it's not what it looks like Uraraka-san. I didn't K-K-Kiss you for no reason! —"

"That was my f-f-first kiss, Deku! You big idiot!" Ochako was blushing mad at this point and only then did Izuku realize his awful sin.

"Ueh!? I'm sorry! Terribly sorry! Terribly, utterly sorry!" Deku apologized profusely, bowing every time, "It was the only way I could heal you! Please forgive me!"

"Deku, you'd better… wait, heal?" Ochako passed a glance at herself to find out that, indeed, her wounds have healed, "Wait, so that was…"

"Recovery Girl's quirk, yes…" Izuku muttered, still blushing over the incident, "It was the only quirk I could think of, that could heal you in a short instant. I could've kissed your wounds, but I didn't want to risk not healing them and only causing you more pain. Recovery Girl mentioned that kissing the person on the lips would have the same effect as kissing the entire body— "

Before Izuku could go back to mumble-mode, he snapped out of it and bowed one more time. "I meant nothing ill towards you, Uraraka-san! honest!"

"Deku-kun, that's… amazing!" Deku stammered from the total 180 Ochako has made.

"W-Wait, really!?" Deku was taken aback from the sudden praise.

"Yeah! You could really save a lot of people using that quirk too!" Uraraka went back to her cheering self, and Deku immediately hid from embarrassment, "Just don't kiss everyone on the lips, yeah?"

"U-Uraraka-san!?" Deku cried out… but immediately went quiet and still when he heard the sound of flapping wings.

Ochako also took notice of Izuku's sudden behavior change, "De— ""Shh!" She quickly held her breath per Izuku's request, only to hear the sound herself.

*flap, flap, Flap, Flap…*

"Get ready…!" Izuku whispered roughly, and both of them stood up, getting into fighting poses.

*Flap Flap Flap FLAP!...*

"…!?" Izuku took the surroundings… before looking up—

"Okay! You've convinced me, Deku-kun. Teach me how to improve my quirk! Please!"

"Seriously," Once again Tomura was found scratching his neck, "Damn near-useless party members, shouldn't one of them have found the brats already?"

Before Kurogiri could say anything, his instincts suddenly started screaming for him to move and, without thinking, he phased him and Tomura away from the debris they were standing on, right before—

"SMASH!" Izuku leveled the ground with a super-sized punch, leaving a crater behind.

"I had a feeling you'd show up sooner or later…" Tomura began, before glaring hard at the newcomer, "You damn All Might wannabe!"

Izuku stepped out of the crater, calmly assessing his opponents, before a soft thump landed next to him.

Tomura looked shocked, "You… but how? Those debuffs should've never worn off!" Izuku smiled, knowing who was next to him.

"Would you like to know, huh?" Ochako exclaimed loudly, before moving her arms together in a motion Tomura didn't recognize from the tournament footage, "Release!"

Tomura immediately braced for—A large car slammed towards his side in an astounding speed, something which he was not prepared for as he flew towards a neighboring wall.

"THAT was for turning my arms into a horror movie, you damn brute!" Ochako spoke afterwards, before preparing into a fight stance, "Get ready Deku… I think I've really crossed the line this time!"

"Right!" Deku simply spoke, but his mind was focused on keeping Ochako safe at all times. These two villains, while nothing like Stain in terms of Killer's Intent, still held up as villains. He had to be absolutely careful, else they fall into a trap and risk—

The sound of metal crumbling apart distracted his thought process, as the car that entrapped Tomura began rusting and, eventually, decayed on the spot. Slowly, Tomura was in view once more.

"You damn kids… I'm going to enjoy this…" Tomura walked over the decayed mess, one of his arms limp and lifeless as he walked to Kurogiri's side once more, strangely silent over the whole ordeal.

"Noumu!" He finally spoke, and both heroes tensed at the name. Two masses appeared, and Izuku immediately assessed their looks and strengths—

Only to rest his eyes on one of the Noumus that looked exactly like the one at the USJ, a sharp chill ran up his spine "That one… looks like the one All Might fought back at the USJ! We need to— "

"Hey, Deku-kun?" Izuku immediately looked at Ochako, at his nickname being called.

"Wh-what is it?" Izuku nervously replied, tense at the situation.

"Damn it… only two are here?..." Tomura started scratching his neck with the arm that he had still functioning, "I'll kill you both, I swear it. You won't leave here alive."

"Think we can do the 'thing' we've been practicing on for a while now?" she asked, and Izuku's mind wondered what she meant, only for a little bit, until he snapped in realization.

"Yeah… Yeah! Let's do it, Uraraka-san!" Izuku, with rekindled confidence, shared a battered smile with the girl.

"I like the enthusiasm! Get ready!" Ochako held her arms out, and so did Izuku.

"Damn mindless mobs won't stop talking! Noumu, kill them!" Tomura gave the order, and both Noumus launched.

Yagi could be seen, looking out the window after his conversation with Izuku. His mind was still thinking about the potential his disciple had as the Symbol of Peace, especially with the new quirk he had acquired, despite their initial interactions.

'Young Midoriya… We haven't even begun your training as the Symbol of Peace, and I've already seen a bright future that rests with you. If anyone if this school deserves a quirk as powerful as yours, it's you.'

'Okay, focus on the papercut, spread the feeling throughout my body…' She looked at herself, and grinned as her body turned light pink.

Pink lines curled throughout her frame. 'This is it… right, Deku?'

'Still, the road will be tough regardless. I pray the day when villains aim for you stays as far away as possible. Despite the ten months you took working to receive One for All, it will only get harder from here.'

"One for All: Full Cowling…!" Izuku mumbled under his breath, and bites of electricity danced off his body, "Along with that… Zero Gravity…!" those strands of electricity became pink, as his body glowed a pinkish hue as well.

'But… I have no doubt that you will succeed in every endeavor you encounter. I hope, in your Hero Academia, you find the support you need, the strength to fight, and the drive to keep improving both of your powers. And I hope, that one day…'

'It's ready!' "Let's do this Uraraka-san!"

'You can show me what it means, to go…'

"Improvised Special Move!" Both Izuku and Uraraka shouted out loud, "Gravity Field!"

'Plus Ultra!'

Thank you for reading! Let me answer some of the questions you probably have.

First, and Foremost, Deku will NOT be Overpowered. His strength compares to the Izuku in the show/manga, but only slightly better than that. It's subjective, really: He's not going to handle the entire League of Villains without breaking a sweat, but there will be scenes in the show/manga that will be made different thanks to this quirk.

Second, this is not a powerful quirk from the get-go. Not to spoil anything, but limitations and hurdles that Deku needs to jump will be made clear from the first few chapters.

Third, other characters can and will improve thanks to Deku's quirk. Thus, some 'creative' liberties as far as quirks go will be made. Y'know, if this chapter hasn't shown that already.

Finally, and I repeat like above, If you want a story like this to continue, PLEASE review and favorite to show your support. It'll mean very much to me to hear your voices and expectations.

Thank you for your time guys! See you in the next chapter!

Update 1 – 9/3/19 – Spacing, Grammar, and Spelling Corrections

Update 2 – 9/21/19 – Spelling Corrections