A/N : Here's chapter twelve, I know it was fast, I was damn well surprised myself, but because I already had thought of what I wanted, it just kinda flowed. Thanks everyone who reviewed

Disclaimer : I don't own My Hero Acadamia, Iron Man or anything else that may cross.

-AHA-

Chapter 12: Laboratory Talks

After riding the elevator up the his lab's floor, Izuku lead the two girls down the hall past another lab, the three stopping at a loud voice inside.

"AHA, that's what I shall do, I will build a replica of my mind. That should help me understand the human psyche".

The two girls looked at Izuku in abject confusion while Izuku shrugged.

"Call it what happens when a genius gets distracted" Izuku answered them as best he could as he usherd them along.

Reaching his lab though, he no sooner opened the doors did he notice that on a large monitor on the far lab bench was a blown up picture of what was taken of him during his fight with the Iron Monger.

"Whatcha think?" a familiar voice stated "I liked this one the best."

Facing off to the side of the monitor, Izuku's eyes landed on Mei, she was sitting cross-legged on the lab bench next to the monitor, a Cheshire cat level grin across her lips.

"My question is, why is it blown up on a monitor?" it was that part Izuku was confused by.

"Because," Mei drawled out as she hopped down from her perch and walked over to him "You never told me about it."

Izuku was taken back slightly by the touch of concern in her voice.

"Sorry Mei, things just kinda happened and with Recovery Girl healing me on yesterday morning I didn't want to worry you" Izuku explained to the pink haired girl.

Taking a step back from him, Mei eyed Izuku for a few seconds longer before a soft smile made itself known on her lips.

"A idiot reason for an idiot boy I suppose," she then decided to comment on the two girls standing behind him "Bringing the mistresses to our love nest then? Quiet bold Izuku, but I do approve."

Izuku blushed red at the tease, Momo and Kyoka not faring any better, though Kyoka decided to get her own licks in.

"If we've been approved by the wife, then I don't see the problem with it," she gave a smirk toward Mei "Thanks Goggle Girl."

Mei rose her eyebrow at the blackette's response, a smirk making it's way to her face.

"So I get a nickname too, does this mean you like me as much as you like my Izuku?" she asked, fluttering her eyes at Kyoka.

"I don't know, but it seems you both a package deal, so it's a win for me" grinned Kyoka.

The two stared at each other in a stalemate before they burst out laughing.

"Hehehe, that was some good comebacks there" Mei grinned, wiping a tear from her eye.

"Couldn't just have you ride rough-shot over us could I" Kyoka more so stated rather then asked.

Before Mei could make the comment he knew she'd make over Kyoka's words, Izuku spoke up.

"Alright you two, enough. Let's call this one a draw" he clapped his hands, gathering their attention.

"Thank you Izuku, I wasn't sure if I was going to die from embarrassment" Momo muttered, her face still aflame.

"Come on Ponytail it was only just some word play fun" Kyoka grinned toward Momo.

"Sounded like you were getting awfully drawn into that game" Momo said with a quirked eyebrow.

"Well fun with words aside, what brings you two over to Izuku's lab?" Mei asked as she resumed her position of cross-legged on the lab bench.

"It was something I asked Izuku to explain to me last week, about Nano-Machines" Momo decided to explain as she sat down on the only other empty lab bench.

"I tagged along because I thought it might be an interesting lecture" Kyoka grinned, taking a seat next to Momo.

"Ahh, so Izuku gets to play teacher with you then" Mei grinned "Be sure to remember to ask for private lessons as well, I know from personal experience that he's very thorough."

Izuku by this time had made it over to where Mei was sitting and bopped her on the head with what looked like a rolled up magazine.

"I'm not sure when I had to teach you anything privately" Izuku muttered, staunchly ignoring the faint tinge of red on his cheeks.

Placing his suit away, he undid his school tie and threw it on one of the desks before taking a seat in front of the now turned off monitor.

"Right, first off I'll start with the basics," Izuku took a breath "Nano-Machines are the more common name for these machines, they are also referred to Molecular Machines in reference to working on the molecular level. The more 'correct' term for a single one of these machines is a Nanite."

He noticed the two girls where paying attention and continued.

"This technology has been around for a while. I believe work started on them more the two hundred years ago," Izuku placed a hand to his chin, thinking about the exact date "It was about fifty or so years before Quirks started manifesting. Back then they were largely in the research and development stage, having no real application due to the constraint of technology. Despite that the research was going along fine, until a problem in the day stunted their development."

"What was the problem" Kyoka was the one to ask, showing interest in the 'lesson'.

"It was the appearance of Quirks," Izuku spoke, surprising the two "You see, technology generally increases by leaps and bounds during one particular event, that event is war. However, when Quirks began manifesting, the entire world was thrown into chaos because no one country was effected, so everything went internal. I don't need to go into specifics seeing as you both either know already or I may make Ms Kayama's history lessons boring."

Kyoka let out a sort.

"Like that'll happen, we girls get all the entertainment we need seeing you boys act like morons in front of her" she said with a smirk.

"Hey, I'd like to think that after a few lessons I've gotten used to her more provocative nature" Izuku defended himself.

"Well, you do show more constraint the the others, Specks on the other hand, that guy's got the constitution of a saint" Kyoka said in an impressed tone.

Izuku did have to admit that it was impressive how Tenya was able to so easily ignore any and all of the 'scandalous' nature that encompassed their '18+ only History teacher' on the grounds that 'She is a teacher at this fine establishment and should be treated as such' or so he said.

"Anyway getting back one track," Izuku resumed the original conversation "When Quirks started cropping up, most other things were put on the back-burner. This was the case for Nano-Machine research as well, it wasn't until about a hundred years ago that it started back up. My Granpa's father was the one who first brought it back into the field. After establishing the bases of Tetsu Industries he began pouring a lot into the research and development of Nano-Machines."

Here he got up and went to a drawer, before pulling out a syringe.

"You both saw me last week with a syringe like this" he twisted and pinched at the base on the needle before pulling it off, before unclasping the plunger part, revealing a clear tube filled with a clear liquid.

"As you can no doubt guess, Nano-Machines are invisible to the naked eye due to their size," he placed the ampoule in front of the two girls "There are one thousand Nano-Machines in each of these syringes, enough to handle any small area wound, that includes broken bones."

"So your sayin that if you use more of them, then they can heal greater wounds?" Kyoka asked, tilting her head to the side.

"Ahh, and that's the catch twenty-two with Nano-Machines, in order to do their job, they are programmed with free learning and a collective hive mind of sorts," Izuku explained "The more Nano-Machines there are in one place, the greater 'thinking' power the collective group has. That means that coupled with the free learning they are capable of gaining free thought, and one of the main danger's of Nano-Machine Robotics is that there's always a chance that once they're capable of free thought, the they'll be able to take advantage on once of the most diverse and dangerous abilities all Nanite's possess. That ability is to self replicate."

The girls noticed the serious demeanour Izuku had adopted.

"One of the things that set's a Nanite apart from most other things in Robotics is the ability to replicate itself," Izuku nodded to the ampoule "That syringe I mentioned, only started with one Nanite, the other nine hundred and ninety nine came from that single Nanite."

"But how, I mean I understand that self-replication would be something programmed in, but how does it create something from nothing?" Momo, ever the diligent student, had been taking notes on the subject the whole time.

"That's where the second part comes in," Izuku picked up the ampoule and gave it a gentle shake, causing the liquid inside to ripple "You see the liquid in the ampoule right?"

Getting two nods of conformation, he placed the ampoule back down.

"Nano-Machines when gathered together will still look like a metal plate," Izuku explained "This liquid on the other hand keeps them in their micro sized state."

"What is it?" Momo asked with interest.

"It doesn't really have a name, it's a solution filled with organic rich compounds that can, if stimulated the right way, become building blocks for almost anything," Izuku grinned "Carbon, Calcium, Iron, Magnesium almost all things on the periodic table are packed into this solution. The closest thing that we can liken this too is the original organic solution in which life originated from here on earth. Once a single Nanite is place inside this liquid, it uses the base compounds inside to replicate itself"

"W...wow" Momo was speechless.

"Pretty amazing stuff right there" Kyoka nodded in agreement to Momo's awe.

"Yes, it was one of the most amazing medical marvels created around fifty years ago by some of the most brilliant minds of the age," Izuku nodded, grinning "The only problem is that it was a solution in it's base components. The only way for it to be useful was if a wounded person was submerged in it and monitored be machines capable of changing molecular make-up."

Momo's eyes widened as she realised what that meant.

"So what your saying is that there were too few machines capable of putting the solution into effect" she spoke up causing Izuku to smile.

"And a gold star for the smartest girl in class" Izuku said, causing said smartest girl to blush and smile back "There was no way for the solution to be used outside of laboratory conditions, even hospitals would be ill equipped to handle it effectively."

"Alright, so how did it go from somethin' that was almost impossible to use to somethin' that fits neatly inside a syringe and acts like a FF Panacea?" asked Kyoka.

"That came about by another person who works here. Dr Tsukareta Nii-shin, one of Tetsu Industries top Robotics Experts has worked on Nano-machines for about seven years" Izuku mentioned "It was a few years ago he started experimenting with the solution and Nano-Machines in conjunction with each other and with the help of another member of our staff Kagaku Awai, who's one of our best medical biologists. They both managed to find a balance for the Machines and the solution and made the serum that's inside that ampoule."

"What Izuku forgot to mention, is that he had a role in the breakthrough" a voice came from the door as everyone turned to see Tsukareta leaning of the labs door-frame, a half smoked cigarette hanging from his mouth "Our boy there was able to determine how many Nano-machines could safely be injected into the human body. That, and he was able to measure the amount of solution required to create the one thousand Nano-Machines while still having enough solution for them to use as repair blocks."

Izuku ducked his head at the praise.

"I was only able to manage that from yours and Kagaku's notes regarding the Nano-Machines and the solution" he muttered sheepishly.

"You shouldn't sell yourself short kid" Tsukatreta pulled the cigarette from his mouth and blew out some smoke as he took notice of Izuku's students "You know, it's a good thing Kagaku's busy, she'd have a field day at the fact you've got three girls in your lab."

"So let's thank heaven for small mercies" Izuku muttered, he barely made it through Mei's teasing, Kagaku would just make it more unbearable.

Tsukareta chuckled as he snuffed the cigarette with a pinch before sitting at the end of the bench the girls were on.

"So I take it you two are interested in Nano-Technology?" He asked stuffing the snuffed cigarette butt into one of his pockets.

"Yes, I find them to be quiet amazing machines" Momo's eyes sparkled at the thought of learning something new "You rarely get a chance to ask those who work on them... I couldn't rests."

She sheepishly scratched the nape of her neck in minor embarrassment.

"Curiosity is a scientists greatest ally," Tsukareta grinned, he turned his attention to Izuku "Alright teach, don't mind me sitting in, continue."

Nodding his head, Izuku continued where he left off.

"Anyway, the way that the Nano-machine works in conjunction with the solution is through the programmed reservoir that make up the original Nanite's brain," he put emphasis on brain "The Nanite is programmed, in this case, with the knowledge of what the human body looks like, how it's suppose to function and what constitutes as 'irregularities'. Once programmed with all the pertinent medical information, it is then injected into the solution where it begins it's primary mode of operation, that is self-replication".

He paused to make sure the two girls were following as he stood and made his way to a clear board.

"Now that's where the extra programming comes in. in order to prevent the Nanite from self-replicating too much, we put a killswitch program in the base code which prevents it from replicating more the nine hundred and ninety nine times," picking up a white coloured marker, he wrote a sting of zeroes and ones, off-set by several equations on the board in white ink "This is what we call a sub-routine, and we set up about forty or so of these to prevent the Nano-Machines new level of network sophistication from overriding them all."

"Forty?, I'm gonna assume each code is different, why so many?" Kyoka asked in confusion.

"Your right, each line of code is fundamentally different to the last because of it's positioning inside the code base of the Nanite," Izuku explained, writing another three different line set's, each with a fundamentally different set of zeroes and ones, and each with their own specific set's of equations "The reason we have to put forty in is because that is the minimum amount of sub-routines needed to cage the Nano-Machines active intelligence, it's also the more optimum number to keep from messing with the Nano-Machines other protocols."

The girls looked at the board in abject surprise and awe, Momo had taken most of it on board given the extreme level of attention she was paying the lesson along with her sharp analytical mind. Kyoka was having a hard time summing the entire thing up as 'If it works it works'.

"So, after the Nanite has replicated to it's regulated amount, the serum in then bottle inside a medical ampoule, set up to an attachment syringe and can be ready for use," Izuku repeated the process to the ampoule, attaching the plunger and needle one again and placing it on the desk "You probably heard Mr Aizawa mention something about only being able to use it once every hour?"

The two girls thought back to when Izuku used the syringe and remember Aizawa mentioning an hour time-limit.

"Yes, I was wondering what that was about" Momo nodded, expressing the thoughts she had at the time.

"Well, that time-limit pertains to the life expectancy of the Nano-Machines," Izuku explained "Once in the bloodstream the Nano-Machines are capable of healing even a shattered hand in a matter of moments. This is of course reliant on how much solution is used. The only organ not capable of being healed is the brain, because even with the advancement of medical knowledge there is still a lot about the brain we don't understand. Once all the solution is used up and Nano-Machines become inert for the remainder of the hour before dissolving into the bloodstream. However theoretically, should one happen to inject a second ampoule into themselves before the hour is up, there is a chance that the new Nano-Machines could find and reactivate the old Machines."

"Ya know, I kinda think I might know the answer to this, but I still gotta ask, what happens if there's too many Nano-Machines inside a person?" Kyoka had a feeling she knew the answer, but needed to hear it.

"Probably what your thinking, too many Nano-Machines could theoretically reach you brain, assimilate it and take you over," Izuku said seriously, the two girls faces paled a bit but they didn't seemed to be terribly surprised "That is the true main danger of Nano-Machines, because of the level of intelligence they can reach, they come with a danger that they may be able to take over."

"The problem with that is we don't know what the outcome would be," Tsukareta took up the conversation, drawing the two girls attention to him "Would the Nano-Machine's take over, will they augment rather then assimilate, would you just end up with a voice in the back of your head," here, Izuku had to suppress a chuckle considering the fact they are technically voices in that back of Tsukareta's head thanks to his Quirk "The problem is that we don't know the dangers, which is why that scrawl on the board times ten is what we gotta program into every Nanite we create."

"Hey, my handwriting's not a scrawl" Izuku muttered in annoyance.

Giving a chuckle as he stood up, Tsukareta made his way over to the door, fishing out his cigarette pack.

"Anyway, thanks for the diversion, making sense of Dr Science's work was severely confusing me," placing a cigarette in his mouth and lighting it, he turned to face the occupants before grinning "Oh, and a little advice from a fellow male lab worker, shut the doors, the labs do have moderate soundproofing should you wanna give the girls private lessons."

He hit the close button on the lab's door terminal as he walked out chuckling, leaving Izuku and the two girls with blushing faces.

"Does that count as permission?" Mei asked in an excited manner.

"Mei, please don't" Izuku pleaded.

Momo took the lull in conversation to address Izuku.

"Thank you so much for this," she smiled brightly, learning new things always got her excited "I never thought I would ever get a first hand explanation on how Nano-Machines work."

"It's alright Momo, I was glad I could help" Izuku smiled at the elated girl.

"Geez Ponytail, your practically glowing ya know" Kyoka quppied with a grin.

"It seems like it'll be easy to get your motor running" Mei added with a grin.

Momo blushed hard at the innuendo delivered by the sniper eyed girl.

"Anyway, though it's fun watching how adorable Ponytail gets after embarrassing her," Kyoka smirked at the mild glare Momo sent her way "What was it you wanted to show me Tin Man?"

Before Mei could comment on the phrasing of Kyoka's words, Izuku began speaking.

"Ah, it's to do with what we discussed last Thursday" Izuku walked over to one of the lockers at the side of the lab and opened it, pulling out a pair of blue and yellow coloured gauntlets "These are only prototypes, but considering they're based on mine they were the easiest to make."

Taking the gauntlets from Izuku, she gave them a once over before slipping them one. She noticed that they seemed more streamlined then Izuku's own gauntlets and fit her hands rather comfortably.

"They'll eventually have the same repulsor as my gauntlets but right now, you'll notice a hole at he base of each pair" She nodded, noticing said spot at the underside of each gauntlets "Plug your Ear-jacks into them".

Following Izuku's instructions, Kyoka was surprised when the powered down gem on the palms of each hand flipped mechanically around, turning into what looked like speakers.

"Once you plug your Ear-jacks into them, they turn from repulsor blasters to sound focuser's," Izuku grinned excitedly at a chance to explain his most recent creation "This function is based loosely on your current boots though far more targeted. You'll be able to effectively hit a single target with your Quirk, rather then the radial targeting effect of your boots."

Kyoka was rather speechless.

"How the hell did ya manage to make these so fast, considerin' you weren't up to workin' on them yesterday or Saturday" Kyoka asked in shock.

"Heh, I did most of that on Thursday after you left, made the finishing touches on Friday" Izuku thought about it for a few seconds before shaking his head "Well, that's technically untrue, as I said before they're prototypes. They'll work, I'm sure of it, but they're far from a finished product."

"Damn Izuku... I don't know what to say" so speechless and awed by Izuku, Kyoka used his actual name rather then her nickname for him, something not lost on either of the other two girls in the room.

Momo wasn't sure what to make of the pressure building in her chest, she didn't understand why the way Kyoka was looking at Izuku was not sitting well with her. She should be happy that Izuku was going beyond the call of duty as a Class Representative, making sure his classmates were better off, but at the same time she wished it was her.

'W...why would I think that?' she felt a blush come to her cheeks, she was lucky that the others weren't paying attention as she shook her head 'Maybe... could I really?'

Mei on he other hand couldn't resist a tease.

"Setting up flags already Izuku?" she asked, her eyes half lidded as she smiled sensually "You already got Yaoyarozu over there with your talk on Nano-Machines, so now ya going for Jiro's flag points as well?"

Kyoka blushed at the meaning of Mei's words while Izuku shook his head at Mei referencing his actions to a Dating Sim.

After that, Izuku began showing Kyoka a few sketches of what else he had in mind, the girl finding it harder and harder not to feel a little flustered by all the work he seemed to be pouring into helping her. He then turned to Momo and began discussing with her various aspects of her Quirk, which the pony-tailed girl was secretly elated for. Mei added her own bits and pieces, showing the two class One A girls that she was just as talented and intelligent about robotics and gear making as Izuku was. It wasn't surprising that it was approaching nine when they realised it was late.

"Geez, dad's gonna be annoyed I missed dinner" Kyoka grumbled as the three girls stood by the foyer doors.

"Yes I know, mother already sent me a text. It seemed our butler was afraid that he had done something to upset me because I wasn't there to eat his food, she and father had to stop him from burning his hands in the oven as penance." Though Momo said this in a way that she thought the situation was normal, Kyoka and Mei were sweatdropping from the whole thing.

"Butler?" Mei muttered.

"Yeah, I'm more concerned about the hands in oven punishment thing" Kyoka grumbled.

"Anyway, I'll see you girls at school tomorrow" Izuku spoke as he placed a key into a slot next to a keypad before typing in a code.

The door locks disengaged with a hissing sound and the three girls bid their fair-wells to Izuku, who locked the doors after they left.

"Now to make up for not being able to be here on the weekend." with a determined glint in his eye, Izuku headed to the elevators, after all, inventions don't invent themselves.

-AHA-

In a darkened room at an undisclosed location, a tall man wearing an immaculate medium brown coloured business suit sat at a large silver table. He had light brown hair that was neatly combed to for the fringe to fall to just beside his piercing hawk like violet eyes, a complacent smile across his lips. Around him at even intervals were nine monitors with symbols on them.

"So what do we know about it?" a gravelly male voiced asked from a monitor which showed a frame of a building with a bulldozer next to it.

"Not much I'm afraid Master Foreman" the only man present said "From the police report, it seemed to be someone testing an 'Armoured Suit' against another."

"Indeed, Detective Tsukauchi was the one to question the boy attacked" a voice spoke up from a picture of a police badge, though one could hear tones of both male and female within the voice "Trust is something I normally don't have, so it goes without saying the meaning if I say I would stick by his reports."

"The Chief Superintendent is right" a feminine voice came from the monitor with a wooden staff with a snake coiling around it, the voice was stern but with an underlining kindness"The boy in question was admitted to one of my direct branch hospitals where he was interviewed."

"What was the injuries the boy suffered, Head Matron?" this question came from the monitor that had a red H on a golden background within a rounded red border imposed over a blue background, the male voice had a charismatic quality to it, while also retaining a sense of plainness.

"It wasn't too severe, the most was a broken rib. Recovery Girl came by the next day and he was as right as rain" the Head Matron replied.

"His a student at U.A Academy" this voice was definitely female, and had a young, spry quality to it through a monitor with a mortarboard hat placed atop a lectern "Has a Quirk to go with that fancy suit too."

"Interesting to be sure Principle Director, but back to the matter at hand," the man spoke "There is little we can do at the present moment in time. We've too few leads to investigate any of the likely candidates. Though I suppose given who the boy's grandfather is we can at least rule out Tetsu Industries."

"I would have to agree," came a male voice from the monitor with a skyscraper on it "They would not attack the 'heir' they most recently named. That leaves us the Namari Corporation or the Kin Organisation."

"Considering the rather sordid things that have been linked to the Kin Organisation I can see them being behind this, don't you think Chief Executive Director" an gentle and kind feminine voice spoke up from the monitor with a yellow house with a white picket fence.

"Perhaps if I bet on more then the stock markets, Madame Ombudsman"

"Kinda obvious to take a bet on huh?" Came a laid back feminine voice from a monitor with an apartment complex.

"Still, we can't make an accusation based on an assumption Head Commercialist." came a course, growling voice from a monitor with a silhouette of a factory.

"In the end, you are correct Grand Factory Overseer" the man spoke "All we can do is wait to see if this 'Iron Monger' will attack again."

"I don't like it, while I'm hesitant to call them a Villain, property damage is still a criminal offence" the red H monitor's voice paused for a moment "Will you keep us informed Chancellor Zankoku?"

"Of course Peacekeeper, any more information on the Iron Monger will be forward to you and the Chief Superintendent," with that, all nine monitors turned off and the man relaxed himself, leaning his elbows on the tabletop and resting the bridge of his nose of his laced hands "The question is, how long will it take to get that information."

-TO BE CONTINUED-

A/N : Yeah, so this was done in a rather fast amount of time. I'm not sure how it'll be received because most of it was correcting a failing issue of mine; my lack of explaining how the Nano-Machines in my story work. I hope that it all made sense, I did a bit of research involving Nano-Machines and put a fair amount of thought into what I wanted them to do and how I wanted them to work. If you guy's have any input about the whole thing just let me know.

Other then that I also used this chapter to further the relationship between Izuku and Mei, Momo and Kyoka along with the relationship between the three girls which I hoped you all enjoyed.

I also chose to make Midnight the History Teacher because aside from Present Mic and Cementoss, none of the other teacher's are placed as teachers in regular classes. Let me know what you guys thought of it.

Considering the length of the lab scene alone I think it was a smart more that I waited and used it for Chapter twelve, but I sure wasn't expecting to get seven freaking pages out of it. I really surprised myself and considering it just about completed my general chapter size limit in four days, that's really fast.

I gave the story about five readings and I don't think I lost any quality so if you spot any problems let me know please, needless to say I don't think my next chap will be a quick.

Anyway, as always thanks for the reviews and I hope you enjoy this Chapter (even if was just two scenes.)

Peace out.

willdraco1987.