Title: Thunder Over Musutafu
Author: JoeHundredaire
Rating: PG-13/FR15
Disclaimer: With a myriad of writers, artists, and editors, actual rights are a nightmare when you go near a comic book universe. Suffice it to say that Marvel Entertainment LLC owns all of the property printed in their comics, along with the television and movie adaptations of said same property. Compared to that, the ownership of My Hero Academia is relatively simple: the entire thing belongs to Kōhei Horikoshi. Not mine, don't sue, and so forth and so on.
Summary: "Whosoever holds this hammer, if he be worthy, shall possess the power of Thor."
Joe's Note: To be honest, given how many stories cross some form of Marvel's intellectual property with My Hero Academia but how few do so without using either Spider-Man/symbiotes or Iron Man, I was initially excited to see The Almighty Deku by burgerkingpolicedepartment vault its way to the top of the latest page. It was definitely interesting but not quite what I was hoping for. Which really sucks because I fucking love Thor. I love Norse mythology. I love Marvel's additions and reinterpretations of classic Norse myths and characters. And so I decided to try my hand at my own story, building off the - relatively - cleaner world of the Marvel Cinematic Universe to create a 'Midoriya with Mjölnir' story. There will obviously be similarities between the two in the early chapters, if for no other reason than that there are only so many ways you can tweak canon to put Thor's powers in Izuku's unsteady hands. It will rather quickly go its own way, though, and hopefully be something worth reading overall.
Dedications & Thanks: To Nicholas, Howard, Jade, Alexander, Tibor, Alonsis2, Daniel, Clark, Adrien, erlking, ridillin, Haematite, Charles, Jacky, Edward, Andrew, Roofcrawler, Wil, PbookR, Samuel, Mikey, Beverly, Daniel, Charles, Crygon20, Subtle, Christopher, Stephen, Fablesrogue, Morgan, Joseph, Jason, RileyWestfall, bloodylord, Marc, Ziryo, Chris, George, Koby, William, Devin, JJbelle, David, Gavin, TheTenthAncestor, Lookshy, Mauday, John, Roman, Warren, and Jess for sponsoring me on , and making it easier for me to spend more of my time writing.


Not all men are created equal. That inalienable truth had governed Midoriya Izuku's life from an early age. For he was just a simple, normal boy living in a world dominated by the superhuman... a world that he eagerly longed to be a part of but life had decided to cruelly exclude him from.

It had all begun a few years after what society had later coined the "Blip": the use of the Infinity Gauntlet to restore the half of the world's population that had been cruelly disintegrated five years prior in an event known as the "Snap". But when the reality-altering energies of the Infinity Gauntlet had washed over the world a second time... and then a third a short time later, restoring the lost members of the world's population and then wiping the greatest threat to humanity from existence? Something happened. Whether humanity came back from the void different or the energies emitted by the Infinity Stones had somehow intrinsically changed the population, even the best scientists in the world had never be able to determine with any certainty. But there was something unquestionably different about the world in the aftermath of the Blip.

It began in Qing Qing, China, where a boy was born with the ability to make his entire body glow. He was a modern medical marvel, studied by scientists far and wide... until the miraculous happened again a few months later and an infant was discovered who could levitate his own bottles and toys. And then it happened a third time, and a fourth, and then again and again and again, a superhuman generation slowly rising out of the seemingly unremarkable mass of humanity as a whole and reaching their hands toward the sun.

Within a century, eighty percent of the population had what was now known as a Quirk, and the majority of that remaining twenty percent was concentrated heavily in the older generations. The extraordinary became ordinary and what had previously been relegated to dreams and fiction became reality. For with the rise of superhuman abilities came the advent of superhumanly powerful criminals... and superheroes to combat them. SHIELD and the self-proclaimed 'Earth's Mightiest Heroes' slowly faded away into obscurity as a new generation of heroes rose to prominence. Laws and regulations were put into place, governing what people could and couldn't do with their newfound powers. Schools began pushing out class after class of fair and just heroes who used their powers to bring an end to the chaos and confusion.

But even as humanity took step after stumbling step into a new era of superhumanly powerful beings, a once great people settled into an isolated corner of Earth to live out their remaining days in quiet. Tønsberg, Norway became the new home of several hundred Asgardians who survived the Snap. Their numbers doubled in the wake of the Blip but they remained humble, content to allow humanity to chart its own path into the future. Their days of glory had passed, their homeworld was gone, and they were happy to just... exist, integrating as best they could into the strange new world that they found themselves on.

It was into this world that Izuku was born. Diagnosed at the age of four as one of the few remaining 'Quirkless' children in existence, his dreams of being a superhero were cruelly cut down before he even had a chance to try and achieve them. Bullied and belittled by his peers, dismissed out of hand and condescended to by adults. For as much as he dreamed of being a hero like his idol All Might, saving one and all with a smile on his face, according to everyone around him... he couldn't.

Until one day when the unexpected intersection of two outliers of Earth's population meant that he could.


Izuku slowly trudged his way home from Aldera Junior High School, half-heartedly flipping through the charred and water-smudged pages of 'Hero Analysis for the Future Volume 13'. Thankfully Kacchan had damaged but not destroyed his notebook during her tantrum; the thought of losing so many months of hard work and detailed notes made Izuku want to vomit. He had plenty of spare Kukuyo notebooks waiting for him at home, though. It would take some time and effort, but he could transfer everything to a new, dry, unburnt replacement. And then he would finish Volume 13 before continuing on to Volume 14.

And someday, he would use all the notes that he was taking all these years to help himself succeed in his quest to become the Number One hero.

He still couldn't believe how cruel Kacchan had been today, and not just in her attack against his beloved notebook. 'If you wanna be a hero that badly, there's a quick way to do it: believe that you'll be born with a Quirk in your next life and take a last chance dive off the roof!' While he was no stranger to being the target of awful remarks... had she really meant what she said? What if he'd put it down in a suicide note? That she'd been the one to instigate his suicide? The arrogant blonde really needed to learn to think before she spoke; with a scandal like that, she'd be lucky to get a job as a mall security guard, much less a pro hero of any real renown.

Not that he'd ever consider taking her words seriously. He had too much to see... too much to do... too much to prove to ever consider taking that sort of way out of his predicament. After all, there were pro heroes like the underground legend Eraserhead who essentially fought Quirkless: his Quirk put him on a level playing field with his opponents but all of his combat abilities came from extensive training and experience. If Eraserhead could be a hero without an offensive Quirk to his name, then why couldn't Izuku? Sure, he'd probably need some top tier support gear to close the gap between his own abilities and a Quirk like Eraserhead's but wasn't impossible... was it?

Looking up from his charred notebook to eye the shadowy underpass ahead of him, Izuku paused before taking in his surroundings. While the underpass was the fastest way for him to get home, he was in no particular hurry today - especially given how much work lay ahead of him transcribing his damaged notebook into a fresh volume when he did reach his apartment - and it just seemed so... dark and gloomy. And so instead of pressing onward on his current path, he decided to try and buoy his already lackluster mood by taking a slightly longer - but sunnier and airier - way back to the building. After waiting a seeming eternity for the light to change so that he could cross the street, he made his way across the road and entered the barely pronounceable Endurfæðing Park.

Technically speaking, the park was the one and only embassy of the Asgardians in the entire world, the sole sovereign soil that they maintained outside of the village limits of Tønsberg, Norway. Roughly a city block square, it was relatively primitive compared to the parks maintained by Musutafu's city council: a simple square of grass with a few particularly hardy-looking trees that had been transplanted from Norway decades ago and a small golden gazebo just to the left of the park's center point. And then dead center in the middle of the park was a barren crater, the final resting place of Stormbreaker.

Thanks to his obsessive study of all the heroes fit to print about, both pre-Quirk and current, Izuku knew all about Stormbreaker. The second weapon of the original Thor - and the only weapon wielded by his temporary female successor - Stormbreaker had been forged by Eitri the Dwarf to replace Mjölnir after Thor's original hammer had been destroyed in a battle with a villain whose name was never made public. Significantly larger than Mjölnir and shaped more like an axe than a hammer, Stormbreaker had a winding, organic-looking handle marred by the blockish Norse runes that had been burnt into the wood. The Asgardians who watched over the site had been kind enough to translate them for the rest of the world, seeing no harm in it.

"Whosoever holds this hammer, if he be worthy, shall possess the power of Thor."

Over a century after its arrival at its final resting place, much of the excitement had faded. From sunrise to sunset, the park was always watched over by one or more of a rotating series of young Asgardians; sentinel duty at Endurfæðing Park was part of a rite of passage among the younger generation, according to the teenage-looking boy that Izuku had once worked up the courage to talk to, often times their first trip into the outside world that they'd been allowed to take. Every so often, someone passing through the park would try their luck with lifting Stormbreaker, obviously to no avail. And once a year, people from around the world descended on the park for 'Thor's Day', a festival dedicated to the pre-Quirk 'God of Thunder' and Avenger.

What had become of the original Thor? Nobody truly knew.

Why had his hammer fallen to Earth when he vanished so completely? Nobody truly knew.

Why did it land in Musutafu of all places? Nobody truly knew.

Entering the park, Izuku slowly made his way over to where Stormbreaker sat in the center of its landing crater, the nearby gazebo staffed by a teenage girl a few years older than him who kept a watchful eye on the hammer. Or at least she looked to be a teenager a few years older than him. Given that Thor had looked to be in his thirties at best when well over a millennia old, Izuku was well aware that the 'girl' could quite possibly predate Quirks... or maybe even superheroes as the world knew them.

That said, she was an amazingly pretty girl, even compared to the other Asgardians who stood watch over the park. Izuku had seen her a few times before when cutting through the park on the way home: tall, with long blonde hair, green eyes a few shades lighter than his own, and generous curves. Definitely too pretty to ever give him the time of day if it wasn't required by her job, he recognized. Even her style of dress was utterly unlike what he was used to seeing around the city: a long-sleeved green dress with a wide, cowl-like neck with a golden corset over it and matching golden gauntlets. Looking up from the tablet she had propped up on the podium in front of her, she offered him an insincere smile before greeting him with a bored tone. "Hello. Have you come to try your luck at lifting Thor's hammer?"

Izuku reached up to rub the back of his neck as he blushed, looking from the cute girl to the hammer and back. He could do this, he told himself. She wasn't actually trying to talk to him for personal reasons or anything, it was just like when he talked to shopkeepers or female teachers. "I wasn't intending to; I was just on my way home from school and decided to take a different route for a change of pace. But... I suppose it couldn't hurt anything, could it?"

"That's the spirit!" Somehow she managed to sound both encouraging and bored at the same time, like a cashier who was glad that he knew what he wanted from a fast food restaurant. Setting down her tablet on the podium in front of her, she stepped out of the gleaming gazebo and held out her hand toward him. "If you want, I can take a picture with your phone so you can show your friends what you did."

Before Izuku could stop himself, he shook his head with a self-deprecating smile. "That's okay, I don't have any friends." Awkward silence hung in the air for a moment, and then he pulled out his phone anyway and held it out to her. "But, I mean, I guess my mother would enjoy seeing this? I've come by here a few times before and even talked to one of your coworkers but I've never tried lifting the hammer. I'm a Quirkless teenager, it just seemed sorta... fruitless."

Taking his phone, the girl waved dismissively. "That doesn't mean anything as long as you're worthy. After all, Jane Foster was a Quirkless scientist before she took up Stormbreaker and became Thor."

Izuku's went wide. "You knew Jane Foster? I know Asgardians age slower than the rest of us, but... how old are you? Did you know Thor? Loki? Valkyrie? The Avengers?"

"First of all, you never ask a woman her age. Even an Asgardian." The girl stared at him with narrowed eyes until Izuku raised his hands in surrender, blushing fiercely. "Although to answer your other questions... we dated briefly, we're good friends, Brunnhilde and I are rivals of sorts who don't really get along, and unfortunately. Well, unfortunately for the most part. Bruce Banner was agreeable enough company. He reminded me of an old friend from Asgard."

Just as he was recovering from his initial chastisement, the girl's words made Izuku's eyes go wide with wonder again. "You lived on Asgard?!" That put her at easily over two hundred years old! Well, the fact that she knew Loki did as well, given that he hadn't survived to be a part of the establishment of the colony at Tønsberg. But wow. To have lived so long... the things she must have seen. The heroics she would have witnessed. Izuku had so many questions.

The blonde rolled her eyes. "Yes, and now I live on this mudball, watching people try to lift my former king's hammer to no avail. Speaking of which..." Hefting his phone, she waved it back and forth. "I realize there's not exactly a line, but I would like to get this over with. I was at a particularly fascinating spot in my book."

Oh. Right. That part where she wasn't a friend, she was an employee whose time he was taking up. Caught up in his thoughts, Izuku had almost forgotten about that. Nodding, Izuku made his way over to Stormbreaker before glancing back at the girl, his eyes widening as he found her suspending his phone between two spinning seals of eldritch energy as she gestured with her hands, moving it about to get the best shot. She could do magic? Now he had even more questions! Ah! Wait! Focus! The hammer!

Reaching down, Izuku wrapped both hands around the wooden shaft of Stormbreaker and took a deep breath before pulling. Nothing. He gave a second pull and then a third for good measure before raising his hands in defeat and stepping back. "Oh well. Guess I'm still Quirkless and hammerless. Would have been cool, though, wouldn't it?"

"Yeah. Cool." The girl gestured for Izuku to rest one hand on the base of Stormbreaker, waiting for him to follow her instructions before taking one last picture. Then his phone spun around and floated over to him, hanging there in front of him until he reached up to pluck it out of the air. "Now if you don't mind, I've got two hundred pages left to this book and only an hour until my replacement arrives."

As he tucked his phone back into his pocket, Izuku looked over at the blonde uncertainly. "I mean, if you're off in an hour... can't you finish your book then?"

"Why read on my own time when I can get paid to read?"

She had a point, he supposed.