Chapter 1: Quirkless
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Izuku Yagi was four years and two months old when Dr. Tsubasa turned the little X-ray monitor toward his parents and delivered the verdict like a doctor reading a death certificate.
"No joint in the toe. I'm sorry. He's Quirkless."
Izuku didn't understand what that word meant yet. He only understood the silence that followed it - a silence with a texture, thick and cold, filling the little clinic room like water rising past his ankles.
Across from him, in his mother's lap, his twin sister Izumi was already glowing. Not figuratively. Little sparks of soft gold light drifted off her fingertips like dandelion seeds, and she giggled every time one popped against the ceiling tiles. *Luminous,* the doctor had called her quirk not ten minutes earlier, with the kind of reverence usually reserved for lottery winners.
"She's a late bloomer, this one," the doctor had beamed. "Manifestation at four is rare - usually means real strength behind it."
Their father, Toshinori Yagi, was - under the mask of an easy smile and a mop of unruly blond hair - the Symbol of Peace himself: All Might, the number one hero, a man whose presence could calm riots and whose punches ended them. At home he was just Dad, tall even without the muscle form, quick to laugh, and utterly incandescent with pride the moment Izumi's fingers had sparked gold.
He had scooped her up and spun her around right there in the waiting room, laughing his big, booming laugh.
He did not do that for Izuku.
Izuku remembered his father's hand on his own small shoulder, exactly once, and exactly this: "It's okay, buddy. Not everyone can be a hero."
Then his father had turned back to Izumi. Izuku remembered thinking, even at four, that his father's hand had felt like it was already somewhere else - already reaching for the daughter who might, one day, carry something he could be proud of into the world.
His mother, Inko, cried in the car. He remembered that too. He remembered thinking the tears were for him - that she was sad *for* him - and it took him years to understand, slowly, in the way you understand a bruise is there before you remember how you got it, that she had simply been afraid. Afraid of a world with no place carved out for the Quirkless son of the number one hero, and too tired, too quickly, to try carving one herself.
---
Nobody hit him. That was the strange, quiet cruelty of it - nobody ever hit him at home. It would have almost been easier if they had, because then there would have been a moment, a single ugly moment, that anyone could point to and say *there, that's where it went wrong.*
Instead it was smaller than that. It was a thousand small subtractions.
It was Izumi's growth chart taped to the kitchen wall in bright marker, updated every month, and no chart for Izuku because "he wasn't growing into anything anyone needed to track."
It was hero-analysis notebooks bought for Izumi's fifth birthday - *so she can start learning form and technique early, sweetie* - and the one Izuku filled with his own cramped handwriting, quirk trivia and All Might posters and a small hopeful list titled *Things I Can Still Do*, that his mother found once, read for exactly four seconds, and set back down without a word.
It was dinner, most nights, where the conversation orbited entirely around Izumi's quirk lessons, Izumi's control exercises, whether Izumi should test for the junior hero program early - taught, sometimes, by their father himself, home between patrols, beaming down at his daughter like she was the second coming of everything he'd built his name on. Izuku learned to eat quickly and ask to be excused before anyone noticed he hadn't said anything.
By six, he'd stopped waiting for anyone to ask about his day.
By seven, he'd stopped telling his father he wanted to be a hero too, because the one time he had - looking straight up at the man the whole world called the Symbol of Peace - Toshinori had crouched down, ruffled his hair, and said, not unkindly, just *tiredly*, "Izuku, maybe find a different hobby. This one's not going to take you anywhere."
By eight, he was doing his own laundry, because it was easier than explaining, again, why his gym clothes were torn.
---
The park two blocks from the Yagi house had a jungle gym shaped like a castle, and it belonged, by unspoken decree, to four kids: Katsuki Bakugo and his twin sister Katsumi - quick-tempered, explosive, magnetic in the way that made other children orbit them without knowing why - and the Todoroki twins, Shoto and Shota, one all ice-still composure and one simmering with banked heat, heirs in miniature to a hero name everyone already whispered about.
Izuku used to think, when he was very young, that being Quirkless made him invisible to them. He learned quickly it made him *visible* - visible in exactly the way a stray dog is visible, something to be shooed, or laughed at, or used to demonstrate a new technique.
It started small, the way these things always do. At six, it was just words - *Deku*, useless, the nickname Katsuki hung on him before either of them understood how permanently a name like that could stick to a person. At six, it was being left out of games, told the castle was for people who could actually do something in it.
By seven, words weren't enough for them anymore, because a quirk that isn't tested doesn't feel real to the child who has it, and Izuku was the only body in that park who couldn't test one back.
"Hold still, Deku," Katsumi told him once, cheerfully, the way you'd tell a friend to hold still for a photo, right before Katsuki's palm cracked with its first real explosion and singed the sleeve clean off his jacket. They hadn't meant to hurt him. That was almost the worst part - they hadn't thought about him enough *to* mean anything by it. He went home with a burn across his forearm the shape of a small hand and told his mother he'd fallen against the stove. She believed him. It was easier for both of them that way.
By eight, it wasn't an accident anymore. Katsuki had learned exactly how large a blast he could throw without leaving a mark that would ask questions, and Izuku had learned exactly how small he could make himself in response - arms up, head down, absorbing what he couldn't outrun, because running only ever made it a game they enjoyed more. Shoto and Shota took turns after Katsuki got bored, calling it training the way children mimic the language of adults they admire without understanding what the words are supposed to cost. Shoto's ice never left burns, which was, in its own quiet way, worse - cold that crept in slow enough that Izuku sometimes didn't notice how badly his fingers had stiffened until he couldn't make a fist anymore. Shota's heat was the opposite: fast, sudden, gone before Izuku had even finished flinching, leaving nothing behind but the memory of it and a sleeve gone stiff and singed at the cuff.
He became, without anyone ever announcing it as a decision, the thing the four of them tested their control on before they tested it on anything that could push back. A body-shaped practice target that wouldn't report them, because who was there to report to - a father too busy being the world's hero to notice his own son's, and a mother who'd long since stopped asking what the bruises were from because the answers had stopped sounding true even to her.
By nine, he'd learned to read the weather of the park before he was even through the gate - who was there, whose mood was short, which direction the wind was blowing so he'd know which way the ice would slide or the heat would carry. He learned to keep to the tree line, to time his visits around their schedules, to disappear before anyone could decide he was useful for something. He stopped wearing short sleeves even in summer, not because anyone had told him to, but because it was one less question he'd have to build a lie around.
None of it ever drew blood in a way that made the adults look twice. That was the particular cruelty of children who grow up around heroes - they learn control before they learn conscience, precision before mercy, and a burn that fades in a week doesn't count as anything worth mentioning to a parent who already isn't looking very hard.
Izuku stopped going to the park by nine and a half. He told his mother he'd simply lost interest. She didn't ask twice.
He started going to the riverbank instead, alone, with his notebooks, cataloguing heroes he would never be permitted to become, in handwriting that got smaller and smaller, as if some part of him had already decided he should take up less space in the world.
---
He was ten years old the night it happened.
He didn't remember all of it - that was one of the mercies, later, and one of the cruelties, because a mind that doesn't remember its own breaking has no way to brace for the pieces.
He remembered walking home from the riverbank later than usual, the streetlights just starting to hum on. He remembered a shape at the mouth of the alley that ran behind his house, a coat too large, a hand made of hands, and a voice like gravel wrapped in velvet saying something almost gentle:
*"Yagi's boy, and Quirkless besides. What a delicious irony. Let's see what we can make of you instead."*
He remembered fear - real fear, the kind that empties a body out - and then, mercifully, nothing.
His parents did not report a missing child that night. They did not report one the next morning, either. It would be three days before Inko even noticed his door hadn't opened, and when she asked Izumi if she'd seen her brother, Izumi - eleven years old and mid-way through her second hero-camp application - shrugged and said she thought he was probably at the river again.
Nobody called the police for another week after that. When they finally did, the search lasted eleven days before it was quietly folded into a drawer of unsolved cases - an irony no one at the agency dared say aloud, that the number one hero's own son had slipped through the exact kind of cracks his father had built a legend promising to close.
---
What happened to Izuku Yagi in the years that followed does not fit easily into any chapter, because a person does not break the way glass does - cleanly, all at once. He broke the way ice breaks under repeated weight: a thousand hairline fractures, each one small enough to survive, until one day the surface simply wasn't there anymore.
There was a laboratory that didn't exist on any map. There was a voice that called itself patient, and was almost never so - a voice that spoke of All Might sometimes with real hatred and sometimes with something closer to hunger, as if the boy in front of him were less a person than the missing piece of a much older war. There were injections that rewrote what his body understood was possible, quirk factors harvested and grafted and burned into a nervous system that had spent ten years believing itself to be nothing at all - and *nothing*, it turned out, was the perfect canvas.
He learned, in those years, that a body could be made to forget which parts of it were supposed to hurt and which weren't - that pain could be rearranged like furniture in a room until a person stopped trusting their own sense of where the walls even were. He learned that time could be taken away from him in pieces, that whole days would vanish and he'd wake somewhere new with no memory of the space between, and that the not-knowing was its own kind of wound, one that never really closed because there was nothing to stitch.
He learned to stop flinching, because flinching cost more than it saved. He learned to answer to silence the same way he'd once answered to his own name, because his own name had stopped being used on him somewhere around the second year, and a thing without a name is easier to reshape than a boy who remembers he used to have one. There were stretches of time he would never be able to account for afterward - not because he'd blocked them out, but because some deliberate hand had gone in and taken them, the way you'd take pages out of a book so no one could ever read what they used to say.
He learned to bend light before he learned to want to. He learned to pull shadow like a physical thing, to fold it around himself until he disappeared into it, long before he understood why a monster with a voice like gravel needed the Symbol of Peace's Quirkless son to become something that could vanish entirely.
He was not asked if he wanted any of it. There was no version of those years in which asking was ever on the table.
What broke, in the end, wasn't his body. His body adapted, the way they'd designed it to. What broke was smaller and quieter than that - the part of him that used to keep a running list titled *Things I Can Still Do*, the part that used to believe, however faintly, that the world had a place for him if he could just prove himself into it. That part didn't survive the second year. What grew in the space where it had been wasn't quite a person anymore, and wasn't quite anything else either - something that flinched at kindness before it flinched at cruelty, because kindness, in that place, had never once meant what it was supposed to mean.
And somewhere in the compounding wreckage of it - the pain used as a teaching tool, the isolation used as a leash, the identity stripped down past Izuku Yagi into something with no name that answered only to commands - one voice, and only one, found its way into the wreckage without breaking further what was already broken.
She had golden eyes and a laugh like a knife catching light, and she was the only person in six years who ever asked him what *he* wanted, even when the honest answer was *I don't remember how to want things.*
He remembered her voice long after he'd stopped being able to remember his mother's.
---
The banquet hall was strung with gold and white for Izumi's sixteenth birthday, the kind of party a hero family throws when their daughter has just placed second in the regional junior tournament and every camera in the prefecture wants a photo of the number one hero's daughter cutting the cake.
Inko Yagi stood near the dessert table in a dress she'd bought for the occasion, smiling the practiced smile of a woman who has learned not to think too hard about the empty chair that used to be set at family dinners and now simply wasn't set at all. Toshinori was near the door in his lean, un-Might form - retired from active duty now, but still every inch the Symbol of Peace when reporters angled their cameras his way - shaking hands with a City Council member, his easy grin fixed in place.
Katsuki and Katsumi Bakugo, seventeen now and already carving out reputations of their own, were arguing loudly by the punch bowl about hero rankings. Shoto and Shota Todoroki stood near their father, posture perfect, the way children of famous heroes are trained to stand at events like this.
Nobody at that party had thought about Izuku Yagi in a very long time.
Shota Aizawa had come only because Toshinori had asked him personally - an old colleague's favor, the kind Aizawa didn't often grant and never enjoyed. He stood near the wall with a cup of punch he wasn't drinking, watching the room the way he watched everything, cataloguing faces out of habit rather than interest.
It was Izumi's photo wall that did it. Someone had strung up a timeline of her life for the party - baby pictures, first-quirk-use pictures, tournament trophies - years of her stretched across the banquet hall in gold frames. Aizawa scanned it the way he scanned everything, and it was several minutes before the absence registered as an absence at all, the way a missing tooth doesn't hurt until the tongue finds the gap.
"Toshinori." He said it quietly, cutting through a cluster of well-wishers with the flat, no-nonsense tone that had ended a thousand meandering conversations before. "Where's your boy?"
Toshinori blinked. "Sorry?"
"Your son. Izuku." Aizawa nodded at the photo wall. "There's twelve years of her up there. I don't see one picture of him past a toddler."
It was such a small question. That was what would haunt Inko later - how small it was, how easily it could have been waved off, the way a hundred smaller versions of it had been waved off for years. *He's just shy. He's at a friend's. He didn't want to come.*
But Toshinori opened his mouth to answer, and nothing came out, because he realized, in that moment, in front of a room full of cameras and Council members and his daughter's friends, that he did not actually know where his son was.
"He's-" Toshinori started, and stopped. His eyes went to Inko, an old married reflex, *you'll know, you always know* - and found her already pale, her own mouth working around the same impossible blank.
"He should be here," Inko said. Her voice came out strange, too high. "He - Izuku's probably upstairs. He doesn't like crowds."
"When did you last see him," Aizawa said. Not a question anymore. A diagnosis, the way he'd once looked at a student and known, instantly, that something was wrong before the student did.
Nobody answered.
Izumi, sixteen and glowing faintly gold with the excitement of her own party, looked up from her friends at the sudden quiet and felt it reach her before she understood why. "Mom?"
"When," Aizawa said again, quieter now, and somehow that was worse than if he'd shouted, "did any of you last see him?"
Inko was trying to count backward. Trying to land on a memory - a face across a dinner table, a voice in the hallway, anything - and finding, with a horror that started in her chest and spread outward like cold water, that the last clear memory she had of her son was small, and young, and years and years and years too old.
"Three days," she whispered, and heard how absurd it sounded even as she said it, because it wasn't three days. It had never been three days. It had been years since anyone in that house had actually *looked*.
Toshinori's hand - the hand that had ended wars, that had held back buildings, that had never once trembled in front of a camera - was shaking now, badly, as the true shape of the silence in that room finally reached him.
Aizawa was already pulling out his phone, his voice dropping into the flat, clipped cadence of a man calling in an emergency, but even he had nothing to give the dispatcher besides a name and an age that hadn't been updated in six years. No last known location. No photograph past a toddler's. No friend to call, no school record anyone could produce on the spot, no single thread to pull.
Izumi stood frozen by her own cake, gold sparks dying out at her fingertips, staring at her parents' faces and understanding, for the first time in her life, that the brother she'd stopped thinking about years ago might not simply be upstairs, or at the river, or anywhere at all.
"We have to find him," Inko said, to no one, to everyone, her voice cracking down the middle. "We have to - Toshinori, where do we even *start*-"
Toshinori didn't answer. For the first time in a very long career of having an answer for everything, the number one hero - the man who had never once let a room believe there was a problem too large for him - simply stood there, in front of all of it, silent, with absolutely nothing to give her.
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*End of Chapter 1.