An Idea for an Iron Deku, 8 years Early!
In MHA Izuku looses OFA, and it takes 8 years of near abandonment by his friends, before they approach him with a nanotech suit that gives him back his powers.
However! Melissa Shields built the Iron Might suit of Armor that not only mimicked quirks but also transforms into a car! And she built it in months.
Take into consideration that Izuku has Melissa Shields AND Mei Hatsume in his corner, who would definitely want to build him a similar suit, BUT he also has Momo Yaoyorozu on his side too, who can literally just stand naked in a lab with only the girls and fabricate everything they need to build the suit, (it doesn't even need to be known publicly or even shown that she did that), and on top of those 3 there is also Seiko Intelli whose quirk boosts her intelligence multiplied by the rarity, excellence, brand, type, and quality of the tea she drinks, she would also want to see Izuku back in action.
So you're telling me that the top 4 most beautiful, bombshell, brainiac, babes, in MHA couldn't make an Iron Deku suit of Armor like the Iron Might suit of Armor, in just 3 weeks using the same tech, but scaled to Izuku's size?
No I don't buy it.
In universe, it would probably just that Horikoshi got that actually pathetic "time skip bug" instead of just going into year 2 of their education, which could have shown Izuku getting the armor at the start of the year, and over time, get it upgraded to eventually mimic One For All's quirks.
Which would've matched that opening speech by Izuku about how "this is the story of how I became the world's number one hero!"
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Chapter: IRON DEKU PROTOCOL — DAY 1
The war ended the way most catastrophes end. Not with silence. But with absence.
Izuku Midoriya stood in the skeletal remains of a training field that had once been full of movement, sound, and purpose. Now it was just fractured concrete and wind cutting through empty steel frames.
He flexed his fingers again. Still no response. No ember of One For All. No familiar pressure in his bones. Just him. And the world that had already started moving on without him.
Behind him, footsteps crunched across rubble. “I’ve been thinking,” said a voice that didn’t belong to grief. It belonged to momentum. Mei Hatsume was already holding a tablet, eyes bright with sleep deprivation and obsession. “And I hate how long you’ve been standing there doing nothing. It’s inefficient. Very inefficient. Terrible hero posture.”
Izuku blinked. “Mei… I just lost—”
“Yes, yes, identity crisis, symbolic collapse of hero archetype, very tragic,” she waved it off. “I started designing your replacement immediately after you lost your quirk Muscles.” She tapped the screen.
*HATSUME INDUSTRIES: PROJECT; IRON DEKU!*
Izuku froze. “You… already started?”
Mei grinned. “I started it a month ago, at the end of the war, the moment I realized you were going to be dramatic about it.”
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Two days later, the ruins were no longer ruins. They were infrastructure. The lab was assembled inside what used to be a support training facility at U.A.—cables running across ceilings, half-built chassis suspended like dormant exoskeletons, diagnostic rigs humming with unstable promise. And inside it, impossible collaboration had already formed.
Momo Yaoyorozu stood at the central console, readjusting her hero costume for the 1000th time in the last 30 days, she was calmly projecting material schematics. “If we shift to nano-lattice carbon scaffolding, we can reduce structural inertia by twenty-seven percent.”
Mei spun in a chair. “Or we make it explode slightly when it transforms.”
“No.”
“Worth a try.”
From the side, a woman calmly set down her tea. Saiko Intelli didn’t even look up. “Your design philosophy is emotionally unstable.”
Mei gasped. “That’s rude.”
“It’s accurate.” Saiko stated.
Then, A door opened. And the room changed temperature. A voice came calling. “Sorry I’m late, I WAS in another country, AND I had to pack up half my lab and get it transferred to UA so I could continue working.” She stepped in with a kind smile. Melissa Shield looked like she had crossed continents purely out of spite for distance itself. She set her bag down like it weighed nothing. “And before anyone asks—yes, customs was a nightmare.”
Mei stared. “You just… moved countries?”
Melissa nodded. “For this? Absolutely.”
Saiko exhaled once. “Predictable deviation from baseline behavior.”
Momo looked relieved in a way she didn’t show often. “We were missing a system integration expert.”
Melissa glanced at the central frame. “I can see what you’re building,” she said quietly. “And I can already see where it breaks.”
Izuku finally spoke. “You all… planned this?”
Mei grinned. “Weeks ago.”
Melissa smiled slightly. “Longer than that, technically.”
The prototype wasn’t armor yet. It was a question waiting for a body.
Black and Green nanofiber plates folded and reformed across a suspended frame. Artificial white tendons pulsed faintly under diagnostic light. A central red core remained empty—intentionally. Waiting.
Momo studied it. “It still lacks a true reflex prediction module.”
Melissa nodded immediately. “Because you’re treating it like a machine.” She stepped closer. "This isn’t a suit.” A pause. “This is continuity.”
Izuku’s eyes sharpened slightly. “Continuity of what?”
Melissa looked at him directly. “Of you.”
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The first full activation was not dramatic. There was no explosion. No heroic ignition. Just a soft, synchronized hum as the system recognized its intended occupant.
Izuku stepped forward, and the armor responded instantly, not assembling, welcoming. Panels unfolded upward and inward, locking into place along his body like memory becoming structure. Neural links established without resistance. For a moment, He felt weightless, and then, He felt steady.
Momo’s eyes widened slightly. “Sync rate is accelerating faster than predicted.”
Mei leaned in. “If it hits 100%, does he become unstoppable?”
Saiko: “Statistically no.”
Melissa: “Functionally, it depends on adaptation speed. Like when I made Uncle Might's "Iron Might" armor.”
Izuku flexed his hand, The armor flexed before he did, he froze. “…it’s predicting me.”
Melissa shook her head softly. “Not predicting, Learning.”
The system stabilized, Then tested itself, Izuku moved forward, And the armor moved with him, not behind him, not ahead of him, but synchronized like a second nervous system learning his rhythm in real time.
For the first time since the war, He didn’t feel like something was missing, that something had been taken from him, He felt like something new had been built around him.
Later, the four engineers stood before the dormant frame as it powered down.
Mei was already rewriting the software.
Momo was already improving it by fabricating better materials.
Saiko was already calculating edge-case failure probabilities.
Melissa was already integrating a second neural layer into the helmet.
Izuku just watched them, “…you really built this for me,” he said.
Momo nodded. “We built it because you’re still a hero, our hero, the World's Greatest Hero! I won't leave you behind.”
Mei pointed at him. “Also because you look cooler in armor.”
Saiko sipped tea. “And because the world’s probability of continued stability improves by 87.5% with your presence.”
Melissa stepped slightly closer. “We didn’t replace what you lost, Izuku.” she said. “We gave you something to continue being a Hero.”
Izuku exhaled slowly, then looked at the armor, at the future that it represented, “…then I’ll make sure that I'm worthy of it ” he said.
Mei grinned immediately. “Good. Because version two already has a flight mode. Version three will add in Smoke emitters and a high tech multi-directional H.U.D. & Danger Probability Examination Matrix. Version four is goimg to come with energy whips. Version five will be made of Vibranium, or at least something close to it."
Momo: “We are not adding flight mode yet.”
Mei: “Yet.”
Melissa, quietly adjusting the system logs: "…we’re definitely adding flight mode.”
And for the first time since the war ended, the world didn’t feel like it was just a place of recovery, it felt like home.