Class 1-A didn't have class the day after the USJ attack. The school had declared it a mandatory recovery and reflection day. The main building was a hive of silent, grim activity as the staff and police dissected the security breach, but the dorms were a different world—a world wrapped in a heavy, suffocating blanket of quiet.
The day after that, however, the silence in Class 1-A's homeroom was a fragile thing. It wasn't the comfortable quiet of focus, but the heavy, suffocating stillness that follows a disaster. Aizawa-sensei stood at the front, a mummified monument to their failure, his voice a low, pained rasp as he discussed security protocols and the investigation. The usual undercurrent of whispers and fidgeting was utterly absent. Everyone was there, except one.
The empty desk near the door, where Sen usually slouched with an air of detached amusement, seemed to suck all the sound from the room. His absence was a physical weight. No sarcastic comments cut through Aizawa's lecture, and there were no lazy observations to break the tension. The class had survived a villain attack. They were famous, they were about to participate in the biggest hero event in the country, and it all felt hollow.
Aizawa finished his grim address and dismissed them for lunch. The class filed out, their steps slow, their conversations hushed and strained. They were heroes-in-training who had just faced real evil, and the one person who had looked it in the eye and fought back without flinching wasn't there to make sense of it.
It was in the cafeteria, pushing a limp salad around her plate, that Ashido finally snapped. She slammed her fork down with a clatter that made everyone at the table jump.
"Ugh! I can't take this! It's so boring without Yonori here!" she declared, her voice too loud for the quiet room. "It's like someone turned the color saturation down on the whole world! We're all sitting here moping, and he's probably at home, bored out of his mind, too! I know! Let's go visit him at his house!"
The suggestion landed like a live wire. A dozen pairs of eyes, wide with a mixture of shock and dawning hope, locked onto her.
"Visit him?" Iida chopped his hand, though the motion lacked its usual vigor. "Ashido! Such an impulsive visit could be highly disruptive to his recovery! He requires rest and quiet! We must respect—"
"Oh, lighten up, Iida," Jiro said, though even her usual deadpan was softer than usual. "The guy got turned into a charcoal briquette for us. The least we can do is make sure he's not actually dead."
"Yeah!" Kirishima added, his voice gaining some of its usual volume. "It's the manly thing to do! To check on a comrade!"
Uraraka nodded vigorously. "I-I'd like to see him too. To thank him properly."
Soon, a consensus was reached, fueled by a desperate need to do something—anything—other than sit in the oppressive silence. Even Bakugo offered a grunt that could be interpreted as reluctant agreement, though he mostly looked annoyed by the entire emotional display.
Getting his address from a reluctant Aizawa—who had only agreed after threatening to expel them all if they caused any trouble—was a mission in itself. An hour later, a significant portion of Class 1-A found themselves standing at the foot of a long, private drive that led up to a hill. At the top stood not just a house but a full-blown estate with land and a forest. The house itself was a mix of traditional Japanese architecture and modern mansion.
"Whoa," Kaminari breathed, his voice barely a whisper. "Dude lives here? I thought my family was doing okay with our two-story."
"I knew he was rich, but this is…" Sero trailed off, whistling low under his breath.
"Such a display of opulence is… impressive," Iida said, though he adjusted his glasses nervously. "But we must remember our purpose! We are here to ensure our classmate's well-being, not to gawk at his… socioeconomic status!"
"Yeah, yeah, we know," Ashido said, her earlier bravado slightly diminished by the imposing gates. "But how do we even get in? Do we ring a bell? Is there a secret password?"
As if on cue, a sleek, black intercom panel set into one of the stone gateposts hummed to life. A calm, feminine voice filtered through. "May I help you?"
The entire group jumped. Uraraka let out a small squeak.
Iida recovered first, marching up to the intercom and chopping his hand in a formal greeting to the machine. "Greetings! We are classmates of Sen Yonori from UA High School! We are here to visit him and inquire after his health!"
There was a brief pause. "One moment, please."
The silence stretched, filled only by the sound of their collective, nervous breathing. Then, with a soft, mechanical whir, the massive iron gates began to swing inward, revealing a long, paved driveway that wound its way up through manicured gardens toward the main house.
"Okay," Jiro muttered, her jacks twitching. "No pressure."
They walked up the drive in a loose, awestruck cluster. The grounds were immaculate, silent, and empty. It felt less like a home and more like a museum that was closed for the day.
They reached the front door, a large, impressive piece of carved wood. Before Iida could even raise his hand to knock, it swung open.
Standing there was a woman with vibrant, golden-yellow hair and kind, tired green eyes. She was dressed in simple, elegant loungewear, and she held a dusting cloth in one hand. She looked… normal. Warm. Completely at odds with the palatial surroundings.
"You must be Sen's friends," she said, her voice as warm as her expression. She offered a gentle smile. "I'm Hana, his mother. Please, come in. He's been… well, he's been Sen, old Sen? I'm sure he'll be glad for the distraction, even if he'd never admit it."
Jiro's voice, usually so steady and dry, came out as a high-pitched, strangled squeak. All heads, including a bewildered Hana's, swiveled toward her. Jiro's face was flushed a deep crimson, her earphone jacks coiled so tightly against her head they looked like springs. She was pointing a trembling finger at Sen's mother, her mouth opening and closing soundlessly.
"Y-you— you're Hana Mirai!" she finally managed to blurt out, the words tumbling over each other. "The lead guitarist and vocalist for 'Crimson Lotus'! You did the soundtrack for 'Mechanized Samurai 3'! I-I never thought I'd be able to meet you in real life! I have all your albums! The solo in 'Neon Sunrise' is... It's perfect!"
The rest of Class 1-A stared, first at Jiro's uncharacteristic star-struck explosion, then at Hana, who was now blinking in surprise, a faint blush coloring her own cheeks.
"Oh my," Hana said, bringing a hand to her mouth, a delighted laugh escaping her. "That was... a lifetime ago! You're far too young to know about that old stuff!"
"Old stuff?!" Jiro protested, her fan-girl panic overriding her usual cool. "It's classic! It's foundational! You and your band basically pioneered the post-quirk electro-rock fusion scene! Your use of a six-string bass with a—"
Hana's laugh was warm and musical. "Okay, okay! You've clearly done your homework. And you have excellent taste." She winked, and Jiro looked like she might actually faint. "Please, all of you, come in, come in! Don't just stand on the doorstep!"
She ushered the stunned group inside. The interior of the house was just as impressive as the exterior, a seamless blend of traditional tatami rooms and modern, open-plan living spaces filled with art and comfortable-looking furniture. But the opulence was overshadowed by the sheer surrealness of the moment.
Kirishima leaned over to Kaminari, whispering loudly. "Dude, Sen's mom is a rock star?"
"I guess that's where he gets his... everything from," Kaminari whispered back, his eyes wide.
Hana led them through the spacious home. "Sen's out back in the dojo," she explained. "He's been... restless. Claims he's fine, but he's barely left the dojo since he's been able to walk."
He stood with his back to them, shirtless, his torso a stark map of what they'd only glimpsed in the USJ. Sweat sheened on his skin, highlighting the defined muscles of his back and shoulders, but it was the scars that stole their breath. A branching, fern-like pattern of faint, silvery lines spread across his skin from his right shoulder blade down to his lower back. The permanent mark of the lightning that had struck him as a child. Interwoven with them were newer marks, black and blue bruises.
Crimson chakra, thick and shimmering like heated blood, swirled around his hands and forearms, coalescing into the form of two bestial, clawed paws made of pure energy. The air around them wavered with intense heat. With a grunt of effort, he drove the chakra-clawed hands forward in a punishing strike against a heavy, reinforced training post. The wood didn't just crack—it screamed, splintering under the corrosive, volatile energy before the claws dissolved back into wisps of red smoke.
He dropped his arms, his shoulders slumping with a fatigue that seemed bone-deep. "Fuuuucccccckk, this shit's gonna get on my nerves," he groaned, rubbing his shoulder where the muscle was visibly knotted and strained.
He hadn't heard them enter. His focus had been absolute, turned entirely inward on the volatile, painful energy he was trying to force into submission.
It was the soft, involuntary gasp from Uraraka that finally broke through his concentration.
Sen's head snapped around, his silver eyes—dull with pain and frustration—widening in sheer, unadulterated shock as they landed on the crowd of his classmates crammed in the dojo's doorway. For a single crystalline moment, the unflappable, know-it-all facade was completely gone, replaced by the look of a wild animal caught in a spotlight.
His gaze darted from their stunned faces to his own shirtless, sweaty, and very obviously injured torso to the thoroughly demolished training post behind him. The evidence of his struggle was on full, embarrassing display. "Eek, my titties are out."
His voice was a masterpiece of deadpan delivery that was both a joke and a complete dismissal of the situation. He reached for a grey towel slung over a nearby rack, moving with a deliberate slowness that tried to mask the stiffness in his shoulders. He dabbed at the sweat on his chest and face, not making any move to actually cover up, as if the presence of a dozen of his peers was a minor inconvenience, like a sudden gust of wind.
It was Ashido who broke the stunned silence, her voice a high-pitched squeal of glee. "OH MY GOD, THEY ARE! And they're so… defined!" She wasn't even trying to hide her staring, her eyes wide with a mixture of horror at his injuries and unabashed appreciation for the view. "You've been holding out on us, Sen!"
This seemed to break the spell for everyone else.
"ASHIDO!" Iida chopped his hand, his face a brilliant scarlet, his eyes firmly fixed on a point on the far wall, refusing to look anywhere near Sen's torso. "Such inappropriate commentary! We are here to assess a classmate's well-being, not to engage in… in anatomical scrutiny!"
"So. To what do I owe the pleasure of this... intervention? Did Aizawa send you to confiscate my training equipment? Because if so, there's a whole forest out back. Good luck."
"We were worried, you dummy!" Ashido burst out, her playful teasing evaporating, replaced by genuine, frustrated concern. "You vanished! You looked half-dead when All Might carried you out! We just... we wanted to make sure you were okay!"
A wave of muttered agreement passed through the group. Even Bakugo, who was lurking at the back with his arms crossed, offered a grunt that might have been acknowledgment.
"You… worried?" he repeated, as if the concept were a foreign language. He ran a hand through his sweat-damp silver hair. "I'm fine. Or I will be. It's just chakra exhaustion. It takes a bit to refill the tank. Chakra is life energy, and I used more than I should have. I'll be fine in another day or two. My arm is fractured and my leg was just dislocated. Aside from some bruises, I'm in tip-top shape."
It was Kirishima who found his voice first, his usual boisterous tone softened with awe and concern. "Dude... 'tip-top'? You look like you lost a fight with a freight train. A really, really angry freight train."
"Several freight trains," Kaminari added, his usual idiocy tinged with genuine worry. "And maybe a volcano."
Sen finally finished wiping his face and slung the towel around his neck, still making no move to put a shirt on. "Your concern is touching, really. But it's misplaced. The human body is remarkably resilient. Especially mine." He gestured vaguely at the destroyed training post. "This is just... recalibration. The energy I used was volatile. I'm just working out the kinks."
"Working out the kinks," Jiro repeated, her voice flat. Her initial star-struck panic over his mother had been completely overridden by the sight of him. "By trying to turn your arms into explosive devices? That's not a kink, Sen. That's a critical system failure."
"It's healing. I was using my spare chakra to heal my body faster." The silence in the dojo stretched, thick and heavy, broken only by the faint, almost imperceptible hum of the air conditioning and Sen's slightly labored breathing.
"But you said that 'chakra' was life energy and you exhausted your own. Doesn't that mean you could... die if you use it all? And if that is how it works, is it safe for you to use what you have left to heal minor injuries, like a fractured arm?" The question, delivered with Yaoyorozu's characteristic analytical precision, landed in the dojo like a pin drop.
All eyes turned to Momo, then back to Sen. The air, already thick with unspoken concern, now crackled with a new, sharper tension. "Yes and no. You remember on the bus, how I said everyone has chakra but I'm different because my pathways are different? Well, that's not the only reason."
"Let's take Todoroki, for example. He has a pretty large chakra reserve for a normal person, but he can't do anything with it. The pathways that allow me to use chakra aren't developed in him, so no matter what—even if I show him the hand seals and teach him how to mold the energy—he'd never be able to use it." Sen's explanation hung in the dojo's air, a clinical dissection of power that only deepened the mystery around him. He'd drawn a line between himself and Todoroki, between what was possible and what was not, and it was a line that seemed to be drawn in genetic code.
"Right," he said, as if discussing a mildly interesting scientific paper. "The pathways. The tenketsu points. They're like... pre-installed hardware. Everyone's got the potential energy, the chakra. But most people's systems aren't wired to consciously access it, shape it, and fire it out as a fireball. Mine are. It's a fundamental difference in our operating systems."
"As for your question, Yaoyorozu," he continued, meeting her gaze. "It's a good one. Yes, chakra is life energy. Exhausting it completely... well, that's not 'falling unconscious' territory. That's 'turning into a desiccated corpse' territory."
He flexed his fingers slowly, watching the movement with a clinical detachment. "My... wellspring is different. Deeper. And it refills faster. A lot faster." He gestured vaguely at the destroyed training post. "What you saw here? This volatile, hard-to-control energy? That's not my normal chakra. That's... something else. A secondary source. More powerful, but infinitely more dangerous and corrosive. Using it is like trying to drink from a firehose. But I can exhaust it without worry; it's like a secondary battery. I started using that to prevent full-on severe chakra exhaustion, though I still passed out. I was not near death."
The silence in the dojo was absolute. Sen's casual explanation of near-death energy exhaustion and a "secondary, corrosive battery" hung in the air, too colossal and bizarre to process immediately. He might as well have been explaining the mechanics of a different universe.
It was Ashido who shattered the silence, not with a question about chakra or batteries, but by taking three decisive steps forward and poking Sen squarely in the chest, right over a particularly dark bruise.
"Ow! What the hell, Pinky?" Sen flinched, swatting her hand away. The casual mask slipped for a second, revealing a flicker of genuine irritation and pain.
"That's for being a stupid, self-sacrificing jerk!" she declared, her voice trembling with a mix of anger and relief. "You don't get to just drop a bomb like that and then act like it's a normal Tuesday! We were scared! I was scared! You looked... you looked dead when All Might carried you out!" Her eyes were shining with unshed tears.
The raw emotion in her voice seemed to short-circuit the room's tension. The clinical discussion of energy systems evaporated, replaced by the very real, very human worry they had all been carrying.
"Yeah, man," Kirishima said, his voice uncharacteristically soft. "That was the manliest thing I've ever seen, but it was also the scariest. Don't do that again."
"Ribbit," Tsuyu added, her finger to her chin. "Almost dying isn't very heroic if you do it unnecessarily."
Sen looked from Ashido's furious, worried face to Kirishima's solemn one, to the nods of agreement from the rest of the group. His silver eyes, usually so guarded and amused, showed a flicker of genuine surprise, then something softer, almost uncomfortable. "Sorry."
The single word, "Sorry," hung in the dojo's air, so soft and unadorned it was almost swallowed by the sheer space of the room. It wasn't flippant. It wasn't sarcastic. It was a simple, stark admission that seemed to cost him something to say. The usual layers of deflection and analysis had been stripped away, leaving something raw and unexpectedly genuine underneath.
The tension in the room didn't break so much as it… shifted. The clinical horror of chakra exhaustion and the awe of his power were pushed aside by the immediate, human awkwardness that followed a real apology.
Ashido, who had been ready to launch into another tirade, blinked, her anger deflating into surprise. "Oh. Well… good."
An awkward silence descended. They had come to check on him, to confront the terrifying image of his near-destruction, and they had succeeded. Now, they were just a bunch of teenagers standing around a shirtless, bruised classmate in his ridiculously lavish dojo.
Sen cleared his throat, the moment of vulnerability passing as quickly as it had come. He gestured with his chin toward the doorway. "Since you're all here, and apparently not leaving, you might as well make yourselves at home. I'm sure my mother is already halfway through a feast."
The awkward silence in the dojo was broken by the distant, tempting aroma of something delicious wafting from the main house. Sen's mention of a feast seemed to act as a release valve, and the collective tension of the group eased into a more familiar, hungry curiosity.
"Wait, seriously?" Kaminari's stomach audibly growled. "Your mom cooks too? Is there anything she can't do?"
"Retire, apparently. She's been trying for years, but my dad loves her cooking too much." Sen finally grabbed a loose black tank top from a pile of clean laundry in the corner and pulled it on, mercifully covering the map of bruises and scars. "Come on. If we leave her unsupervised for too long, she'll try to feed the entire prefecture."
He led them out of the dojo, through a pristine traditional garden, and back into the main house. The spacious, modern kitchen was indeed a scene of controlled chaos. Hana was at the center of it, humming the riff from one of her old songs as she expertly flipped okonomiyaki on a large griddle. Various other dishes—plates of gyoza, bowls of rice, miso soup, and an impressive array of side dishes—were already laid out on the large central island.
"Just in time!" she chirped, not looking up from her cooking. "I figured you'd all be hungry. Teenagers always are. Sit, sit! Make yourselves at home!"
The class needed no further encouragement. They descended upon the food with a gusto that spoke of recent trauma and skipped meals. The initial stiffness of being in Sen's ridiculously opulent home melted away in the face of homemade cooking. Chairs were pulled up, plates were filled, and the kitchen was soon filled with the sounds of eating and easy, if slightly shell-shocked, conversation.
Between bites of a truly exceptional okonomiyaki, Kirishima managed to ask, "So, your mom was a rock star, your dad's a retired pro hero... is that why you're so... you know?"
"Loaded?" Sen finished for him, sipping a glass of water. "And terrifyingly competent? Yeah, pretty much. Grew up with a lot of resources and very high expectations. It was either become incredibly skilled or die of boredom. I chose skill. Or I was just a natural-born genius."
"What's your dad's hero name again?" Uraraka asked, her mouth full of rice.
"Aegis," Sen said. "Energy manipulation. Very flashy, very 'by the book.' Thinks my whole... thing," he gestured vaguely at himself, "is needlessly complicated and dramatic."
"I can't imagine why he'd think that," Jiro deadpanned, earning a faint smirk from Sen.
"Blow me," he retorted, which earned him a sandal to the face, courtesy of his mother.
The sandal hit Sen square in the forehead with a soft thwack, then clattered to the pristine kitchen floor. A perfect throw. The entire class froze, food halfway to their mouths, eyes wide. The sheer, domestic normalcy of the act, in the midst of this palatial home with a rock star mom and a nearly-dead classmate, was utterly surreal.
Sen didn't even flinch. He slowly reached up, rubbed the spot on his forehead, and then bent down to pick up the sandal. He held it up, examining it as if it were a fascinating artifact. "Not as hard as it used to be. Age is truly a tragedy. 'To keep the heart unwrinkled, to be hopeful, kindly, cheerful, reverent, that is to triumph over old age.' Thomas Bailey Aldrich."
"Sen, dear," she started, her voice still sweet but with an undercurrent of steel that could slice diamond. "Are you calling your mother old?"
Sen's throat worked. He looked from the pan in the wall to his mother's placid face. He saw his classmates, a gallery of petrified statues, and knew there was no escape. No jutsu, no clever quote, no amount of chakra could save him from this.
"Nonviolence is a powerful and just weapon," he began, his voice a high-pitched, desperate squeak. "Which cuts without wounding and ennobles the man who wields it. It is a sword that heals. Martin Luther King Jr."
The quote hung in the dead air, pathetic and utterly ineffective.
Hana's smile didn't waver. It grew. It was the most terrifying thing any of them had ever seen. "How lovely," she said, her voice like honeyed poison. "And so true."
Wordlessly Sen tilted his head to the side, and a metal pan flew by harmlessly and embedded into the wall behind him. The pan quivered in the wall, its handle vibrating with the force of the throw. A perfect cast-iron skillet, now serving as a very aggressive piece of modern art in the Yonori kitchen.
Hana Yonori simply smiled, a sweet, harmless expression that was somehow more terrifying than any villain's snarl. She wiped her hands on her apron. "I was going to use that for the fish, you know. Now it's part of the décor. Modern art is so expressive, don't you think?" She turned her smile on the petrified class. "More rice, anyone?"
The spell was broken. The class collectively shook themselves out of their stupor, a wave of nervous laughter and frantic head-shaking passing through them. "N-no, thank you, ma'am! We're great! Completely full!" Uraraka squeaked, clutching her stomach.
"Right! Delicious! The best okonomiyaki I've ever had!" Kaminari added, his voice an octave too high.
Hana's smile didn't waver. "Wonderful. Sen, dear, be a lamb and help your friends get settled in the living room. I'll bring out some dessert." She turned back to the counter, humming that same rock riff, as if a piece of cookware wasn't currently serving as a structural component of her wall.
Sen slowly, carefully, extracted himself from his stool. He gave the embedded pan a wide berth. "Right. Living room. This way." His voice was a little tighter than usual.
"I still can't believe they're not canceling it," Sero said, shaking his head. "After a villain attack?"
"It's the best PR move they could make," Sen stated, leaning back in his chair. "Showing the world that UA isn't cowed. That the next generation of heroes is stronger than ever. It's a statement. A stupid, risky one, but a statement nonetheless."
"Are you... going to be okay to compete?" Yaoyorozu asked, her voice laced with concern. "You said you needed a few more days to recover."
"Yeah, somebody has to be there to get first place." The silence that followed Sen's declaration was different from the others. It wasn't stunned or horrified. It was competitive. A low, collective hum of challenge and anticipation rippled through the room. His casual, almost arrogant claim to first place had landed not as a brag, but as a gauntlet thrown.
Kirishima was the first to break into a sharp-toothed grin. "First place? You'll have to get through me first, man! My hardening's gotten even sharper!"
"Indeed!" Iida chopped his hand, his engines giving a faint, excited rev. "The Sports Festival is a test of speed, skill, and spirit! I intend to give it my all!"
"Ribbit, it won't be that easy," Tsuyu added, her finger to her chin. "Everyone will be trying their hardest to get noticed by the pros."
Even Bakugo, who had been brooding silently in an armchair, let out a low, venomous chuckle. "Keep dreaming, you cheater. I'm gonna blow your shitty clones and your shitty lightning right out of the ring."
Sen's lazy smirk returned, the familiar mask sliding back into place. "I'd expect nothing less. It wouldn't be any fun if you all just rolled over."
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