What Is Written [Part 1]

They’d started dating partway through second year, some time during their summer break. Izuku didn’t know the exact date though, and kind of hated himself for that, since neither of them had ever technically asked. At some point, as they hung out in the park under the hot sun, as they sprawled in Katsuki’s bedroom with the Bakugous’ powerful aircon running, as they traded lazy punches in the empty parking lot behind the Midoriyas’ apartment building, things had just… progressed. And then they’d just come back to school hand-in-hand like it was no big deal, like nothing had changed at all, except that Katsuki was a little quicker with his smiles, and Izuku a lot less twitchy than usual.

To their credit, their classmates had been incredibly supportive. Despite a few early reservations, they’d been nothing but kind about the new relationship, always inviting them out on double dates and cooing when they found the pair curled up together on the sofa. So when Ashido found them holding hands in the street in broad daylight, she was not at all surprised.

What she was stunned by, was the fact that they were suddenly only a metre tall, clinging to each other as they surveyed their surroundings warily.

“Bakugou?” she asked, stepping forward when the little blond kid looked her way, fiery eyes locking on hers immediately. “What happened? Did you get hit by a quirk?”

“Yeah,” the little Bakugou grumbled, eyeing her over warily.

“Well, that’s… unfortunate! I’m Mina, how about I take you back to U.A. with me so we can get this quirk sorted out, yeah?”

The little Bakugou looked down at the second child, a sobbing mess with green curls, then conceded a little nod.

“I guess that makes sense.”

Hands still linked tightly, the little Midoriya stood up obediently, sniffling as he attempted to wipe his eyes on a dirty sleeve. He didn’t say a word, didn’t object or agree or even look at Mina’s face, he just clung to the little Bakugou’s hand and trusted in it to guide him.

As they walked, Ashido dug out her phone, sending messages to their class group chat and grinning at the excited responses she got – quirk shenanigans had become a regular part of their school life, but this was the first time it had seemed like fun. Aizawa was waiting at the entrance by the time they arrived, half their classmates hanging out eagerly behind him as they peered through the gates to catch a peek, but despite everyone else’s enthusiasm, Aizawa frowned when he looked down at the pair.

“Are you Bakugou?” he asked, when the tiny blond stared him down with all the confidence in the world.

“Yeah,” the kid answered, scowling. “Why?”

“Tell me about this quirk that hit you.”

“Aizawa-sensei, they’re just kids,” Ashido pouted. “Can’t we just take care of them until they go back to normal? They’re so cute like this!”

“Tell me, please.”

“We were walking with my Dad, and a villain showed up,” Bakugou grumbled, eyes darting warily to the excited classmates behind Aizawa. “We were hiding, but the villain saw us and shot this weird blue light, and then we showed up here and Pinky was staring at us.”

“Do you know what this villain’s name was, by any chance?”

Bakugou looked down at the tiny Midoriya, shaking him slightly, and Midoriya swallowed hard. He looked up with teary eyes, lips trembling, but managed to choke out a tiny voice.

“The n-news didn’t say his n-name,” he squeaked. “B-But they s-said he s-sends people through t-time?”

“Oh,” Aizawa sighed, softening. “So you didn’t… Get younger?”

“N-No?”

“They’re both accounted for,” Aizawa explained, looking at Ashido finally. “I guess this is a time travel quirk, not an age-regression quirk like that villain they’ve been dealing with up in Hokkaido recently. So yeah, I guess we’d better bring them in, I’m sure the heroes from their time will be looking for them.”

“My Dad will find us,” Bakugou said firmly, expression strangely staunch for someone so young. “He won’t let us be gone.”

“I’m sure he will,” Ashido smiled warmly. “Why don’t you come hang out with us while we wait, hm?”

“I guess so.”

Aizawa produced two lanyards, little cards hanging from the end that would grant them access without a student or teacher ID, and hooked one around each of their necks. Midoriya listened carefully as he explained why they had to keep them on, nodding along, but Bakugou just fiddled with the card, more interested in examining the plain-looking guest pass than actually listening to the lecture.

The moment Aizawa was done, the class mobbed them, conversations intersecting in every direction as they asked endless questions, but when Midoriya got teary-eyed again, Bakugou glared them all into silence. The pair marched through the quieting crowd as if it didn’t even exist, Bakugou watching people part for them like waves, and Midoriya wiped his eyes on his sleeve again with a hiccup. Ashido hurried ahead to show them the way to the dorms, and Bakugou conceded a nod, following her directions on short little legs.

“Hey Bakugou, wait up!” Kirishima called, hurrying to catch up. “Oh, uh, I’m Kirishima, by the way. Hi!”

Both the kids looked up, Midoriya a little wary, Bakugou full of distrust, but Midoriya’s free hand rose into a tiny wave.

“Anyway, time travel, huh? You two are so cute, I can’t even believe it. We’ll take good care of you guys, okay? So you don’t need to worry about anything, just let me know whatever you need!”

“Thank you,” Midoriya squeaked. “I hope we don’t get in your way!”

“Nah, don’t worry about it! We’ll have a ton of fun!”

Both kids froze in the dorm-building doorway, staring with wide eyes, and Kirishima grinned when he shot the older boys a wave.

“Look who we brought home!” he laughed. “They said it’s time travel, and Aizawa believes that, so we’re cool!”

“Hey!” Izuku grinned, raising one hand in a wave. “It’s nice to meet you!”

“C’mere, brat,” Katsuki called, crouching down to be closer to their height, and holding out a hand at them. “Let me look at you.”

Ashido wasn’t sure she’d ever seen anyone move as fast as the kids did in that moment, their hands parting for the first time as they sprinted into the room. For a brief moment she was concerned – Aizawa had been worried about weird clone quirks, after all – were these two adorable munchkins suddenly attacking?

She whirled around to look, only to find the little Bakugou valiantly holding back tears, fingers tangled in Izuku’s shirt, while the little Midoriya bawled messily in Katsuki’s arms.

“Can I hug you?” Izuku asked, opening his arms.

Before he’d even finished the words, tiny arms were wrapping around him, and Izuku smiled as he returned the gesture.

“So what’s your name?” Katsuki asked gently, when Midoriya’s sobs calmed.

The rest of the room stared at him blankly, completely lost for words, but Katsuki only continued to wait.

“Bakugou, are you feeling okay?” Kirishima asked quickly, reaching over to feel his forehead. “What are you saying?”

Both kids looked up, at that, and Katsuki raised an eyebrow, loosening his grip slightly to slap away the intruding hand.

“My name is Kisaku.”

Katsuki winced when the class broke out in a deafening wave of half-baked sentences that didn’t even make sense, freakin’ shaking each other like the world had come to an end over one kid’s name. Katsuki just hugged the kid tighter, covering his ears protectively before he yelled at his idiot classmates to shut the hell up already.

Thankfully, Aizawa seemed to do a better job of quieting them, pushing through the crowd to get a good view of the two teenagers hugging their tiny kid-clones.

“You told me it was a time travel villain,” he said sternly, narrowing his gaze at the little kid – Kisaku, he supposed. “Why did you tell me that?”

“It- It was?” Kisaku squeaked, trembling even in Katsuki’s grip. “D-Did I d-do something wr-wrong?”

“What the hell are you guys all worked up over?” Katsuki scowled, hitching the boy up onto his hip and straightening up to meet Aizawa’s eyes. “I’m starting to think you got hit by something, Sensei.”

Kisaku’s arms wound around his neck, hiding his face in Katsuki’s shirt, and Katsuki stroked his back lightly in a poor attempt at comfort – he really wasn’t equipped for kids.

“Daddy, did I say something bad?” Kisaku whispered. “I’m sorry.”

“You did nothing wrong,” Katsuki assured him. “I don’t know what the hell this lot are on about. Oi Deku, did we miss some hallucination quirk or some shit?”

“Maybe? Should I call Recovery Girl? Or All Might?”

“We thought,” Aizawa sighed, pinching the bridge of his nose. “That they were you.”

“Haaah?!” the little Bakugou demanded, whipping out of Izuku’s arms to glare at him. “What did you just say?!”

“You look just like your… Dads?” Ashido explained sheepishly. “We thought they’d been turned back into kids, or something!”

“I’m a girl, you unobservant assholes!”

Ashido’s jaw dropped, the rest of the class following suit, and Izuku couldn’t help but laugh, clapping a hand over it when the little Bakugou turned on him.

“I’m sorry, sweetie!” he spluttered. “I just can’t believe they thought you were Kacchan!”

She folded her arms stubbornly, and Izuku did his best to stifle his laughs, somehow managing to look apologetic even as he struggled.

“I’m sorry,” he said again, reaching out to pet her hair fondly. “Really, I’m not laughing at you, I’m laughing at them, I swear.”

“I know,” she huffed, shooting them a quick glare out the corner of her eye. “Papa doesn’t lie to me.”

“And I never will, I promise. Um, I didn’t catch your name, I’m sorry.”

“You named me. You said you always wanted to pick it.”

“Oh. I’m sorry. Um, did I… Did I name you after Kacchan? And his mom?”

The girl nodded, and Izuku cracked an awkward smile.

“Is it Kiyomi?”

This time she just flung her arms around him again, rather than answer, and Izuku chuckled to himself as he hugged her tight.

“My Kiyomi,” he said softly. “Kacchan tried to tell me I’m not allowed to name our kids after him, but I guess I won.”

“He named Kisaku after you,” she murmured into his chest. “You said he got sappy when he saw our faces.”

“Yeah, that sounds like Kacchan.”

“Oi,” Katsuki protested, struggling to keep a smile off his face all the same. “Don’t be embarrassing, nerd.”

“Too late, Kacchan, I won.”

“So did I, you damn nerd. We have kids.”

Even with the entire class and their teacher watching, Katsuki leaned in, pressing a kiss to Izuku’s cheek and making him giggle.

“I guess I’ll leave them to you and go see if I can find out any information,” Aizawa sighed. “Is there any more information you two can give me?”

Kisaku pulled a face as he tried to think, but Kiyomi just shook her head.

“We’re five,” she offered. “That might help for time?”

“You’re right, it might. Thank you.”

“That’s all I’ve got, though.”

“That’s okay.”

“Was there any more on the news, ‘Saku?”

“Nuh-uh, just he was in Tokyo.”

“Oh, yeah, we live in Tokyo,” Kiyomi agreed. “My Dad was taking us home from school and when the villain showed up he told us to hide, but the guy had already seen us. I bet he beat him up real good, though, he always does.”

Katsuki smirked, and Kiyomi blushed when she saw it, turning her gaze quickly back to Izuku.

“I’m hungry,” she said, diverting attention away from her embarrassment. “Papa, can you get Dad to make food?”

“I guess the nerd never learned to cook,” Katsuki sneered. “Ask me yourself, brat.”

“But you make the best food when Papa does the puppy face at you.”

Izuku burned bright red, trying his best to tune out the laughter from their classmates, but he was a little pleased to notice a matching tinge to Katsuki’s cheeks.

“And Kisaku lost his bunny, do you have a bunny he can hug?”

“His name is Umi!” Kisaku pouted, his lower lip trembling. “He’s not just a bunny!”

“I don’t know where Umi is, but maybe we could get you another toy to hug? I know it’s not the same, but it might help a little?”

“I can help,” Yaoyorozu offered, stepping out of the group who hung on their every word. “Kisaku-san, can you tell me what Umi looks like?”

“He’s floppy and cuddly,” Kisaku whispered, snuggling in tighter to Katsuki’s side. “And he gives good hugs.”

“He’s about this big,” Kiyomi sighed, gesturing with her hands. “He’s blue, like uh… Oh, you know All Might’s really old costume with the blue and red cape? That kind of blue.”

“I’m so proud of you,” Izuku gushed, squeezing her extra tight. “Oh my god.”

“Papa, you’re embarrassing,” Kiyomi pouted, shrugging him off. “He has really big ears, and those little flat eyes, and he’s all fluffy so ‘Saku likes to rub his face on him.”

“Thank you!” Yaoyorozu smiled warmly, hitching up the hem of her shirt. “I’ll do my best!”

Both kids watched in awe as blue fluff began to emerge from her stomach, and soon she was holding a cute little bunny, offering it to Kisaku with her sweetest smile.

“I know it’s not Umi, but maybe he can be a new friend for you both?”

“Thank you!” Kisaku gushed, hugging the bunny tight. “He’s perfect.”

“You’re Creati,” Kiyomi said quietly, watching her shirt fall back down over smooth skin, not a mark in sight left behind by the creation. “I met you.”

“I am!”

“Your husband is-”

“Don’t, ‘Yomi,” Kisaku cut her off quickly, watching her jaw snap shut. “You might break it.”

“Break-? Oh. Like that movie?”

“Uh-huh.”

“Hmm… Yeah, you’re right. We shouldn’t tell them too much stuff.”

“I’d hate for you to change your world just because you told me something now,” Yaoyorozu agreed. “You’re very smart.”

“I guess it’s okay to say you get married, though. Most people get married. And your husband is friends with Papa, so we know you back home.”

“Do you know anyone else here?”

“Mm… Maybe. You might look different.”

“Mister Red Riot was in Daddy and Papa’s wedding photos,” Kisaku pointed out quietly. “And Miss Uravity too.”

“Aww, I’m glad!” Uraraka gushed, Kirishima’s face lighting up equally bright. “It’s nice to meet you both! Again, I guess!”

“Yeah!” Kirishima agreed. “We’ll take good care of you!”

“I wanna stay with Daddy,” Kisaku pouted.

“Of course you can stay with Daddy! I would never dream of taking you away! But I can help take care of you, too!”

“Okay,” Kisaku nodded faintly. “But Daddy too.”

“’Saku has always been a Daddy’s boy,” Kiyomi explained quietly, when Izuku glanced down at her. “He likes lots of hugs whenever Dad is home.”

“Kacchan won’t mind; he likes hugs too, even if he won’t admit it.”

“Yeah, he likes it,” Kiyomi agreed, ignoring the glare shot her way. “It might be hard to cook, though.”

“Mm… Yeah, you’re right. How about we just order pizza? Do you like pizza?”

“Uh-huh!”

“Alright, that’s sorted, then!”

“I’ll buy you all pizza,” Aizawa sighed, glancing at his watch. “If you promise to stay put in this building while I go investigate.”

“Of course, Sensei! I wouldn’t want to risk getting my kids hurt!”

“Iida, I’m trusting you to hold them to that. Call me if they try anything typically ridiculous. I’ll have some pizzas sent over for you all.”

Izuku tuned out when the class turned their attention to pizza toppings, fighting to be heard over each other, but when Katsuki’s eyes turned his way, he cracked a smile all the same.

“Kacchan, we’re gonna have kids,” he whispered.

“Damn right,” Katsuki smirked, ruffling Kisaku’s hair fondly. “Cute ones, too.”

“The cutest!”

Kiyomi didn’t protest this time, when Izuku pulled her into a tight hug. In fact, she clung tightly around his shoulders, nuzzling into his neck lightly for cuddles.

“You must’ve had a super long day,” Izuku smiled. “Maybe we should take a little nap before dinner.”

“M’fine.”

“I know, sweetie. You’re so brave and strong, and so good at looking after your brother.”

“Mm-hm, he needs someone to protect him ‘til his quirk comes.”

Izuku felt like his heart snapped in two at the words, his face falling, and Katsuki made no secret of the way he hugged Kisaku tighter.

“Such a good sister,” Izuku said, his voice a little shaky this time. “Such a good hero.”

─────

[Chapter 2]