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He didn’t mean for it to go this far, honest.
Midoriya Izuku loved to analyze quirks - it was a hobby of his that had started since he could write, and he loved to discover and break down even the smallest and “weakest” of them, so when he got into UA, with a class of nineteen other people who had amazing quirks (eighteen, since he already knew about Kacchan), he couldn’t help but go down the class list and analyze his classmates.
Aoyama Yuuga, Quirk: Navel Laser, pretty cool, his body isn't adapted for it, but the fact that it was a pure beam of light had some potentially interesting applications!
Ashido Mina, Quirk: Acid, extremely versatile, he’d want to check to see if the chemical composition remained the same or if she could make differing acids. Was she just changing the pH? If so, what was being used to dilute it?
Iida Tenya, Quirk: Engine, Uraraka Ochako, Quirk: Zero Gravity, and so on and so on.
Up and until he reached the final member of the class, Yaoyorozu Momo, Quirk: Creation. According to her, she could create any non-living thing she knew the chemical and molecular composition of.
Holy.
Shit.
The sheer possibilities of this quirk were monumental! She already demonstrated that things with mechanical and interactive parts, such as her cannon, could be formed fully functional, which led to the implication that anything that didn’t require outright coding could probably be built. Of course, that could be gotten around with having a support engineer on hand or having a program ready to upload, but given enough time and food, anything mechanical in nature, or even electrical based, could be created freely and without limits.
When Hatsume Mei discovered this, Izuku knew he had already lost.
He hadn’t meant to leave his notebook out, but he had just gone to the support labs after school to talk to her about possible support gear and she had immediately snatched it up to read the page he had been working on. He had already long since been working solely on the vice president’s page, and Mei practically vibrated out of her skin and began designing a giant robot.
Because of course she did.
Luckily, Yaomomo wasn’t told about the notebook entry, nor did Mei immediately accost her for building, but he did notice that the support student had a folder lovingly labeled as “Projects for God <3” and he decided not to ask.
The second big breakthrough was wondering what constituted as alive, because he had seen her make things out of wood before.
Was it simply actively living cells? Could hair be produced as it was merely a collection of dead protein? Or was the DNA usually present in hair too close to being considered alive? If it wasn’t, could she make false DNA evidence as long as she had analyzed the DNA strand? Was that even possible?
Did she even need DNA in the first place? After all, plants still had DNA, and she could produce processed plant matter in the form of cloth, fiber, and wood. If she made, for example, a blond hair, would it be read as a particular person, or would it have no matches in the system? Could she manufacture blood this way, making it all type O and thereby being able to save lives? Then again, the blood would not be “living” as it would need to be for transfusions, so that would likely not work, unfortunately.
But.
But speaking of medical uses.
Viruses weren’t alive at all, were they?
Nor were chemicals, nor medicine. She could topple the pharmaceutical industry by producing those lifesaving drugs that either take too long to make or have rare and finicky ingredients, or the ones that are incredibly expensive for no reason. Medicine could be made available to everyone who needed it, not restricted by insurance or financial situations.
The viruses had a less nice implication, because that meant she could design a custom virus and simply produce it, releasing it upon the world to suit her needs. Izuku was incredibly glad she decided to be on the side of the heroes, not the villains, because that could be… incredibly dangerous.
As for the chemicals, Izuku wasn’t a chemist but he was certain there were certain chemical reactions that had an unstable beginning or middle, but a stable finish. Yaomomo could bypass the reaction stage entirely and just spit out the finished product, so that was another industry she could topple or greatly improve upon.
Yaomomo was the solution to ending capitalism as the world knew it, as long as she was supplied with enough food to last.
Technology wouldn’t be hindered by resources in the slightest. Use copy quirks to supplement her and she had the ability to run the world.
…Izuku may have devoted an entire two page spread to ranting about capitalism that Uraraka saw and ran with, but that wasn’t his fault.
Uraraka then went around preaching about the working class rising up and got into a feud with the entirety of the business course. Of course, as her friend, Izuku was morally obliged to provide “the holy texts” as she put it to convince them, and by the time the notebook entry had gotten passed around the school, he had… accidentally started a cult.
To be entirely fair to him, he was considering worshiping the sheer might of Yaomomo’s quirk anyway, so it was somewhat validating to suddenly have half of the school - wait, half? The business course only accounts for a quarter!
Oh, Mei went around and rallied the support department.
Awesome.
So, half of the school was worshiping Momo.
This would in no way have any consequences.
Honestly, Izuku was just happy that people were starting to recognize the sheer magnitude of what she could do, so he was more than happy to keep writing about her.
Like about how she was the optimal candidate in 1-A to be buried alive.
It sounds bad when you put it like that, but he figured he’s seen her produce things in their pure elemental form, so producing oxygen gas wouldn’t be a problem. Granted, she wouldn’t last forever, but producing her own oxygen means she’s less likely to suffocate and die, which was fascinating. In fact, she could probably produce Midnight’s gas as well, as long as she learned the chemical composition. Chemical warfare would likely become a key part in her hero arsenal for the same reason Midnight was a hero at all; except, of course, Momo’s quirk was far more versatile.
Then summer camp hit and Izuku found out that she could make devices which could send and receive signals which completely changed the game. He had assumed she wouldn’t be able to do that, but she could then, in all likelihood, produce pretty much everything that didn’t have a computer in it.
She could make a car.
By the time Bakugo was rescued and everyone had gotten a thorough scolding, the news of her abilities were spread throughout school with a handy information sheet on the implications of such a thing accompanying it, delivered to all of the dorm buildings. Soon enough, the general education department and the hero course were also aware of the God among them, and even Monoma only had glowing things to say.
Of course, the only person who didn’t know about the rising cult was the subject herself.
Izuku wondered if she noticed anything odd.
Yaoyorozu Momo was not a paranoid person by nature. She was guarded, sure, but that was simply because of her upbringing as a wealthy heiress and her high potential to be kidnapped for ransom. However, she loved her high school class and everyone in it (except Mineta, the less said about him the better) and so when Midoriya shyly asked her to describe her quirk, she did so.
He looked so excited by it and immediately began to take notes with a fervor she admired (he was one of the top students in the class besides her) and it was incredibly flattering to hear such praise. He asked a few questions to clarify and always beamed at her whenever she made something new, so she started to look into other things she could make. His smile was really cute.
Some time after the sports festival, she noticed she had another admirer, the pink haired support student who had used her match against Iida as a commercial. Support students were always a little crazy, but she greatly respected their work in helping heroes so she smiled politely whenever she saw the girl, Hatsume, she thought her name was.
Once, she found a letter from the girl in her costume case, asking about the largest amount of a specific steel alloy she could make if she was provided with supplementary meals. Of course, she responded that as long as the food didn’t run out, the metal wouldn’t either, but that she would probably get tired after a few hours and need to take a break.
Hatsume seemed satisfied with that answer and invited her down to the support lab whenever she wanted. Other members of her class, specifically Iida, warned her that Hatsume was a little eccentric, but the inventor was perfectly polite, if buzzing with excitement, and Momo was more than happy to supply her with rare supplies in return for a tasty meal.
She noticed Midoriya looked worried for all of two seconds before he shrugged and went back to smiling at her all the time. She was touched he had been worried about her encounters in the labs, but she was much more happy to see his beaming face whenever she made something new.
She… might be reading too much into this, but maybe he liked her? She wasn’t opposed to the idea, but it did fluster her quite a bit. Plus, she was taller than him, didn’t most guys want to be taller than their girlfriends? Ok, that might be moving a little too fast.
Uraraka was the next one to start looking at her in admiration. Momo was a little worried that their obvious wealth disparity might alienate the girl, but Uraraka had just brushed that off, saying that soon enough material wealth would be meaningless.
Momo had no idea how to react to that.
She heard later that Uraraka had gotten into a…fight? Debate? With some business course students at lunch, but she had been eating outside at the time so all she got were rumors about it, and it seemed like they had been resolved soon after when Midoriya intervened.
Momo wondered, sometimes, if he shouldn’t have stepped down as class president. Sure, he lacked confidence, but so did she! When you got him talking about something he was passionate about, he would simply light up in the most endearing way.
Before finals, he asked her out of the blue if she could produce gaseous elements. She thought about it for a moment then attempted to create harmless oxygen. She was obviously creating something , but picking a clear gas might not have been her best play…
Of course, Izuku (he insisted) came up with an ingenious way to test it by having her cup her hands over her mouth and breathing in and out for a few seconds before trying to create the oxygen from her hands.
She could immediately tell the difference when the air didn’t seem nearly as stale, and Izuku was immediately off muttering about different gasses and their potential uses. Momo couldn’t really follow along because he was going so fast and she was sort of astonished herself, but she resolved to look into more gasses in the future. A whole new avenue had opened up for her and she could not wait to explore it!
Summer camp hit and she worked with a 1-B student, Awase, to attach a tracker to the nomu, and she didn’t think Izuku’s eyes could get any wider when she pulled out the signal receiver, but while she noticed his hands twitched to write things down, he managed to hold off until they retrieved Bakugo safe and sound.
A week after moving into the dorms she noticed the looks Midoriya had given her at the beginning of the year were starting to be directed at her and the rest of her classmates by the majority of the student body. She was flattered, of course, but they had done something incredibly reckless in getting Bakugo back, even if they had been successful.
When the Big Three came in to tell them about work studies, Hado had asked so many different questions of her classmates, but she had just taken one look at Momo and grinned. On one hand, she was relieved she wasn’t being accosted with questions, but on the other hand she knew that she could probably answer all of those questions. Ever since Izuku asked her questions about her quirk all those months ago she had really been pushing herself harder to find out her true limitations.
She was very glad to call him her friend, and she loved seeing him smile.
Maybe… maybe she should go for it?
If the rest of the cult was jealous that he would hang out with Momo (she insisted) all the time even outside of classes, they didn’t show it. If anything, they looked supportive that their “leader” (he protested that title, but Mei called him “Cult Leader” now and it was starting to stick) was just learning more and more and getting closer to their God.
Even Shiozaki from 1-B, devout christian, acknowledged the holy power of Momo.
The cult probably held meetings, but Izuku still had homework and just really wanted to hang out with Momo. Sometimes they studied, sometimes they talked about her quirk or what they were working on, and sometimes they just hung out. Granted, hanging out usually consisted of science or How-It’s-Made videos they would geek out over together, but it was still really fun.
Izuku was relatively certain he was head over heels for her, but she was way out of his league, so he was super good with just being friends and study partners.
One day she practically slammed his dorm room door open and came in with an ecstatic look on her face.
“Izuku,” she gushed, holding up a thin black strand between her fingers, “I can create hair!”
He blinked and immediately stood up from his desk. “You can?!”
She nodded eagerly and explained how she had replicated one of her own hairs, justifying that since it was merely dead proteins, she didn’t see why she wouldn’t be able to. A check under a microscope (one of her first creations once they had figured out that mechanical items were an option) had revealed it to be largely indistinguishable from a hair she had plucked off of her head, but she didn’t exactly have a DNA test to check.
They did, however, have Monoma.
He sneered at them for all of 0.2 seconds before he saw Momo and then he was merely polite, taking the offered hair and easily producing something.
“Why are you so excited,” his brow furrowed, and they just giggled and ran off.
Her next test was to try and replicate other people’s hair, which took several attempts and, apparently, holding a hair to copy at first, but soon Monoma figured out what was happening and looked like he considered bowing down right then and there.
Only a quick mime from Izuku got him to abort the action and he settled for bowing his head and asking to partner up in the future since she now technically had a blueprint to get him all the quirks of 1-A whenever he wanted. She giggled again and nodded, and Izuku couldn’t help but ask the question one step further.
Since she could create things with DNA, who’s to say she couldn’t make plants? Actual, living plants?
She immediately went on another research binge and word got around the cult of what she was trying to do, and the school collectively held its breath.
With no progress for weeks, hype slowly died down, but Izuku kept bringing Momo snacks when he hadn’t seen her for a while, which she accepted with a tired smile and a squeeze of his hand. She was getting dead plants just fine, but so far, nothing alive.
Just as they were coming to accept that Momo wouldn’t be able to make living plant matter, she burst into class, only two minutes before the bell, and locked eyes with Izuku before taking a deep breath and walking over.
“I know it’s usually the other way around,” she said nervously, “but I just figured it out and I wanted you to be the first to know and when I just wanted to give them to you, I…”
She swallowed and held out a hand before the pink glow of her quirk appeared and she began to create.
She grinned and held out the perfectly formed, very alive rose out to Izuku.
“Will you go out with me?”
Izuku didn’t get a chance to say yes before the whole class said it for him.
He delicately took the rose from her and looked up with wonder in his eyes, meeting her nervous expression.
He could feel himself start to smile, the brightest smile he had ever had.
“I can't exactly say no to God, can I? N-not that I’d want to, but- …me?”
Momo nodded, slowly turning as red as the rose. “No one else. But I’m hardly God…”
Ashido cackled at the other side of the room before leaning out the door. “God is a woman, and she’s in our class!”