OSPREY...SWOOSH

UO: Hello Everyone! Let me introduce myself. My name is UnitedOsprey1991, author of such underrated stories like Journeys of the Dreamer and Remnants of Tri and with my partner in crime NorthsouthGorem we'd like to tell a story. As fellow fans of Boku No Hero Academia, we've been coming up with ideas to see if we can make them unique. Thanks to NS here I think we got one.

Let's see (Pulls out checklist) Introduction, story hook, pairings, oh yeah its a harem, girls will be revealed later, um anything else? Oh yeah disclaimer. We make no claims on Boku no Hero, its characters or its plot. We only own our own ideas. Don't sue us, support the official release. That should be everything.

?: YOU SHITTY PINK-HAIRED BASTARD! (Studio blows up)

UO: …Some things never change

"Talking"

Different Language
Special Moves
Thoughts
"Communication."

Chapter 1: Upgrade- The Origin

Midoriya Izuku bounced in his seat at the doctor's office. As he had turned four years old, he was there for his annual checkup and shots. In addition, he had been hoping that he might finally manifest his Quirk.

"Calm down, honey," Inko giggled. "Let the doctor examine you first."

So enough the doctor came in with a smile. "Hi there you two I'm Doctor Hatsume, I take it Izuku here is here for his check up let's get that started."

Over the next half an hour, the doctor took all the vitals, confirming that Izuku was growing nicely and his health checked out. When it came time for his shots, like many children, was understandably freaked out when he was told that he was getting four. As the first shot was prepared, something remarkable happened. The skin around his shoulder suddenly turned gray, and the syringe failed to pierce it.

"Well, no need to test for a Quirk factor," said the doctor good-naturedly. As he tried to administer the shot again, the boy's skin hardened into a metallic sheen once more. "Looks like you got yourself an active one huh."

"H-how do I stop it?" asked Izuku, unsure.

"Izuku, honey, it's a part of you right? Just relax and I'm sure it'll calm down. The doctor's not gonna hurt you," said Inko soothingly. Internally, however, she was doing a happy dance.

"O-okay," mumbled Izuku, looking skeptically at his shoulders. A few tense moments later, the it receded, letting the doctor quickly inject him.

"Now then, if your Quirk will allow it, I'd like to take a sample of it to see what it is. I don't think I've seen this ever." He carefully took a scalpel and Deku gulped.

Inko took his hand."The doctor's not gonna hurt you, just let him look okay sweetie?" The little boy nodded and the grey material rose to the surface. Hatsume quickly scrapped some and placed it in a dish.

"Aren't y-you going to use a magnifying glass?" Izuku asked curiously.

Dr. Hatsume chuckled. "Not with my quirk, Magnify. I can increase how powerful my vision is and be able to see the tiny cells in our body. Helps with being a doctor." He zoomed in on the petri dish and smiled. "Say Izuku, are you a scifi fan?"

"Yeah! It's so cool how they can do all of that in space!" the dark-haired boy cheered.

"What do you know about nanomachines?" he asked.

"You mean those little things that can eat anything?!" the little boy asked terrified

"Yes, well I doubt these want to hurt anyone. They're in your bloodstream; it looks your body produces them, in effect replacing your cell. Then like a shield they protect you from outside intruders like my needles. You're essentially telling them what to let through the shield."

Deku's smile widened. "Really? Can I be a hero like All Might?"

"My boy, if you can harness these correctly, there is no stopping you from being a great Hero!" Dr. Hatsume chuckled. "You know, my daughter Mei is already obsessed with science and machines. Perhaps we can set up a playdate Ms. Midoriya."

"Of course, call me Inko," she said, smiling down at her son who was now babbling about his Quirk.

A Week Later

Izuku was understandably nervous, approaching the Hatsume residence. As Dr. Hatsume's salary was well above normal means, he and his family could live in a manor outside Musutafu. Inko looked down and smiled. "You ready, honey?"

"What if she doesn't like me?" Izuku asked.

"Oh don't worry, I'm sure she'll love you!" She said knocking on the door. A few moments later, a pink haired misled barreled into Izuku. "Oh wow! You're the boy with the nanomachines! So awesome!" The girl began to ramble on as Izuku tried to stop the world from spinning in his head.

Doctor Hatsume chuckled as he walked in the doo. "Mei let the boy breathe."

The girl sat up and Izuku coughed. "Sorry, sorry! I just wanted to meet a new friend!" The now named Mei apologized. "I'm Hatsume Mei! Nice to meet you Deku!"

"Um...what?" Izuku asked.

"Izuku sounds boring! Your name can also mean Dekiru! Meaning, 'you can do it!' Come on let me show you my toy!" She took the surprised boy up to her room.

Inko giggled. "She's got quite a lot energy, Dr. Hatsume."

"If we're gonna be seeing a lot of each other, its Saibu, Inko."

The parents went into kitchen to meet Saibu's wife, Touku. Meanwhile, up in Mei's room, Izuku was in awe with the number robot model kits that Mei had collected, which lined the shelves and even the windowsill. "This is Awesome! I've never seen so many. And you built these?"

Mei nodded. "Dad helped with the first few, but most of these I built myself. When I grow up I want to be a Support Hero and raise to fame as the lady who supplied the best heroes in Japan!"

"Well I want to be a hero, maybe you can start with me?" Izuki offered.

"We can start with your nanoblood. What've you figured out?" Mei asked excited.

"Um…well I've only had it for a little bit, but…I can make my skin harder and if I get hurt…I heal really fast.

Mei hummed. "Good, but you're thinking small. Think bigger, think," she gazed at her toys. "Think robots! Think suits! Nanobots could be used to build anything! All you need is a little bit of your blood. Here!" She pulled out one of the models she had just gotten for her birthday. "Try and see if you can use it to move stuff.

Izuku looked at the parts of the toy. "A-are you sure?"

"Nope!" she chirped cheerily, "But try it anyway!"

Deku looked at the toy and touched the small leg. With a green glow, a silvery gray fluid welled up out of his skin and pooled into his hand, shimmering in the room's light. He raised it above the model and let them drop onto it.

"Now see if you can get them build it," Mei said giddily.

Deku looked at slimed model skeptically, but concentrated anyway. Soon enough, the liquid moved, the toy parts slowly moving into place. In a few moments, a Gundam had been completely assembled, albeit looking a tad colorless

"Wait...I didn't even see the instructions, how did I…know how to do that?" asked Izuku, holding up his hand.

"How indeed," Saibu agreed, making the kids jump. As it turned out, he had entered the room while the two were focusing on the robot. "I think your mind is already wired to not only make things, but you might be able to break down even complex formulas when you grow up. As a result, if you learn more, you can use your Quirk to do more than ust build toys, you can make your own gear as well." He smiled at the thought. "If your gonna be a hero, being able to build your own stuff will save a lot of time. Especially, if you have an assistant," He said knowingly to Mei.

"Really daddy?" The little girl asked. "You hear that Deku?! You're gonna have a friend for life! THIS IS THE BEST DAY EVER!"

Izuku watched his first girl friend leap around in excitement and couldn't keep the grin off his face. He looked down at the model and cheered at his current accomplishment.

Time Skip three years

"Izuku, it's almost time to go to school!" called Inko, knocking on his door.

"Coming, mom!" he called out, putting down his screwdriver and pliers and shoving Katsuki's cellphone into his pocket. A small device briefly formed around his ear with a green glow, pulsing and sending a signal that turned the phone on for a moment, before switching it off again, making him nod in satisfaction. "Kacchan should be happy with this!" Deku grabbed his bag and rushed out the door to meet with his mother. It had been three very fulfilling years since he'd discovered his Quirk, and thanks to Mei and his mother, his reputation had spread throughout the school. At first it was just fixing small toys and pencils, but as time went on, phones, laptops and even projectors were all easily repaired by the young boy.

Over time, many of the students had begun to treat the happy inventor with cautious optimism, as while he was always helping fix their stuff, his constant tinkering and inventing turned the young class off a bit.

Katsuki, though didn't abandon his friend when he showed his Quirk

Flashback day after Deku discovered his Quirk

Kaachan was laughing with his pals in the park when Izuku ran up to him. "Kacchan!"

The explosive quirk user smirked the green haired boy. "Deku! What's got you excited?"

"I got a Quirk! And it's really cool!" Izuku said breathlessly.

"Really? Show us!"

Deku raised his hand and instantly his skin turned grey, with the liquid matter forming in his palm.

"Whoa!" Said the winged chubby boy.

"What the heck?" The nailed boy exclaimed.

"They're like mini robots!" Deku explained. "They're in my blood stream. I think they're like a force field or something.

Katsuki's friends took a step back. "Machines in your blood? Whoa…that's kinda creepy."

"Yeah…" They looked at each other. "Does it hurt?"

"Not really. I mean, it's safe to give people."

Katsuki scoffed. "Alright then, show me!"

Deku gulped and raised his hands. The dust floated into the air and stopped in front of Katsuki's face. "I told them not to hurt you."

The explosive Quirk user held out his own hands letting the seemingly liquid machines reach out with a tendril and wrap around his arm. "It's all slimy…what's your quirk called?"

Smiling shakily, Deku replied with, "Uh…I dunno. Maybe Nanobots?"

"Meh, could be worse, could be something like Tape or Tail!" Katsuki shrugged. "Not as cool as mine, but I can definitely see you kicking butt with this.

Deku smiled. "We're gonna be the best hero duo ever!"

Katsuki snorted. "Yeah, you can be my sidekick!"

"No way!" protested the other boy, "Now that I have a Quirk, I'm gonna become just as cool as you!"

"Dream on!"

End Flashback

Another aspect that had developed from Deku's quirk, was his intelligence had climbed through the roof. An IQ test taken the previous year showed he was already at 110, which was genius level for a six year old. With some reluctance, Inko went about getting Middle School level books and to her shock, he'd already read them all and with her and his school's permission he was already being put in the advance course for elementary school and potentially set up for High school level courses by the time he got to middle school. As he approached the gates to the elementary school, some of the parents cooed at the interaction between the two, but had mistaken their relationship.

"Aww look at those two, they're so cute.

"Their parents must be so proud of them."

"The little boy's gonna be a heart-breaker when he grows up."

Deku blushed and drew closer to his mother. "Mom, they're embarrassing me," he whispered, "Why're they calling you my sister?"

Inko smiled ruefully. "I didn't realize I still looked that young. Must be all that work keeping up with you and Mei."

"Hey Deku!" Katsuki's voice called out.

"Oh there's Kacchan, bye Mom!" he said, loud enough for people to give a double-take and realize the apparent age of the woman.

"You got my phone?" asked the blonde up front.

"Yep!" confirmed Deku, pulling it out and handing it to his friend. "Wiring and the case is fixed. Kinda wanna figure out a way for your phone to be explosion proof."

Katsuki snorted. "Like anything you make can stand up to me. Any new sketches in your nerd-book?"

Deku grinned and held up his hero sketch book, titled 'Izuku's Hero Analysis #2' and opened it to a new hero, Eraserhead. "I heard about this guy, I think his Quirk stops other Quirks from working."

"Whoa. That's pretty cool…what else do you know?"

He shrugged. "Um…nothing. Came across his name, and not a lot of other stuff."

"Tch...he's a rookie right. Probably nothing much us 7 year olds can find right now," Katsuki grumbled. "Not gonna matter once we're pros!"

Deku grinned and followed his friend inside. As they approached the classroom, they passed one of the teachers who was panicking over the copier. He gave the machine a glance, biting his lip, but continued on. "I guess it'd be too much to ask that they let me take a look at it."

"Lemme guess, you can already guess what's wrong with it?" asked Bakugou, snorting, "Whatever. Not like it's our problem."

"Hm…" mumbled the green-haired boy, scratching at the back of his neck distractedly. A tiny spark flickered in his eyes.

Bakugou laughed. "You're too nice, Deku. If they need a new copier, then they can get it. That's what schools do.'Come on, you can nerd out with your girlfriend later."

Deku blushed bright red. "She's not my girlfriend!"

"Whatever you say," Katsuki laughed as they entered the classroom.

Time Skip, 6 years, Age 13

Deku stood in front of a panel of judges and cameras as they handed him a trophy. It was the Musutafu Middle School Science Fair and Deku had entered into the contest to show off one of his many inventions. He had based it off of a new team that had formed in the previous year, the Wild Wild Pussycats, more specifically Ragdoll. Her Quirk, Search, allowed her to scan up to 100 people and find out their weaknesses and information. Deku decided to make it more personal and a lot more versatile. One trade off he made with it however was it was only line of sight, so anything behind him was behind him was out of reach. However, what he could see gave him so much more. Personal data like their names, height weight and Quirk, bio-metrics and even checking for injuries. Needless to say, he won the contest in a landslide.

Mei grinned as the group of photographers dispersed. "I can't believe your invention beat mine. And here I thought the Grappling arm was unbeatable. Great job Deku." The Eccentric genius had hit her growth spurt early and was currently slightly taller than Deku, who had just started his own puberty, so her hit knocked him forwards slightly

"Yeah, I did huh. I should really thank Ragdoll for looking at her Quirk. This could change how they do law enforcement."

"Indeed," An older male English voice poke up. "Your idea could change how people handle rescue missions!" Out of the crowd came a middle aged brown haired man. A quick scan of him told Deku he was American. The name though surprised him.

"Your...Dr. David Shield! One of the foremost researchers on Quirk enhancement and one of All Might's helpers!" Deku said in disbelief. "I'm a huge fan of your work!"

David laughed. "So I hear. I happened to have just moved to Japan to help continue my research and I was looking for a school for my daughter."

"Daughter?" Izuku asked.

Just then a very pretty blonde bounded up. "There you are, dad! I was wondering where you were…"

Izuku blinked, disconcerted to discover that she was speaking English. As his visor scanned her, it showed her name was Melissa Shield. "Oh uh...Hello, my n-name is Midoryia, Izu-Izuku." Being the first girl he'd really talked to that wasn't Mei, the green haired boy was understandably flustered.

The blonde haired girl gave him a confused look, but gave a small smile and a nod in return. "Nice to meet you Izuku, my name's Melissa," She said in English. "What an interesting looking device. May I?"

Deku nodded his head rapidly and gave it to her. Melissa put the visor on and her vision turned green as she looked around the science hall. "Wow, You can see so much here. What was your inspiration?"

"Um, the Wild Wild Pussycats member Ragdoll. I wanted to expand how a search quirk like hers can work."

"So cool," Melissa gushed. "However, I think we can make this even better."

"We?" Izuku asked.

"Hold on!" Mei cut it. "Deku-kun is my partner to stardom! If your gonna be working with him, I need proof your not gonna get in on our turf."

Melissa smiled as she removed the goggles. "Oh? A fellow scientist, I didn't realize there was another person like myself. Tell me, did your Quirk help him?"

Mei blinked as she realized she was talking to another scientist. "Oh, you mean Zoom? Yeah, these things have so many tiny parts Deku needed me to help guide his nanobots. Oh that's his Quirk, he can make these robots come out of his skin."

The American smiled. "It must be nice having Quirks like that," she said wistfully.

Deku tilted his head in confusion. "Having Quirks...no Quirk?" he asked surprisingly.

She nodded, biting her lip but narrowing her eyes determinedly. "But I don't care, I'm designing my inventions to help people, regardless of Quirks."

Mei stared at the blonde critically. Then her smile widened. "That's what I want to hear! Science, technology, heroics! With you and me, Deku here is gonna be the number 1 hero in no time!"

Melissa tilted her head. "Huh?

Deku blinked. "Wait what?"

Mei patted his shoulder. "You're gonna be the hero everyone loves, and we're gonna be the heroes that help create all your cool gadgets. That is if Meli-chan want to help."

"Oh, uh," mumbled Melissa her eyes swirling at the eccentric girls endless energy.

David laughed. "I told you you'll find friends honey." He then regarded Deku. "Thank you for this."

"N-No problem, its not everyday you meet one of All Might's past sidekicks."

"Oh you're a fan of Uncle Might? He's such a dork. The Stories I could tell you two."

"U-Uncle Might?" Izuku and Mei spoke at the same time.

As the three kids tried to talk through the language barrier, David laughed. "This kid's something else." He thought back to his days as All Might's sidekick and smiled. Who knows, Toshi. Maybe these kids can change the world.

End of Prologue

UO: Damn you plot bunnies. Anyway yes, this is Deku with a machine-based Quirk. As a result, he meets Mei and Melissa. NS, who loves these types of abilities can tell you more.

NS: I can…but not much. Only that, like many Quirks, this is only the surface of it, and even now they barely understand its full nature. For now, however, here it is.

Midoriya Izuku
Quirk: Nanomachines
He can produce billions of microscopic machines from within his body, which he can then secrete from any part of his body. He is able to control them, forming simple devices with them so long as he understands its function. He can also break said devices down and reabsorb them again, so as not to waste them.

UO: Right, so other changes we're making. UA? Is gonna be a college. Harem… Oh yeah. Well, Mei and Melissa are obvious. Ochako, 'cause who doesn't love the girl?

NS: DON'T anybody answer that.

UO: Momo cause A. I like her, B. Her Quirk will be invaluable for future ideas. Kendou, cause honestly I like her and she would fit with them. We might...do one or two more TOPS! But that's at our discretion.

Anyway, support this story with reviews and check out our other stuff, hopefully we'll have another chapter soon. Before anyone asks, canon will start chapter 3 at the latest.

OSPREY...SWOOSH