Chapter Text
It was one of the worst calls Katsuki had gotten all year.
Walls crumbled down around him, exposing hospital rooms and panicked victims to the chaos. Everywhere Katsuki turned—a new face, and a new trail of blood. Screams and anguished cries echoed down every hallway, and it was safe to say, this was one of the very few missions he’s been on where he genuinely felt horrified at the aftermath of a villain’s attack.
There were so many people caught up in this attack that It felt like he was walking around with ghosts, their cold fingers grabbing at his heels, moaning his hero name as he ran by.
He remembers the small briefing he had been pulled into when he finally got on scene at Musutafu Hospital. A few familiar faces and some not so familiar faces surrounded him behind one of their large black support vans, the vans that would eventually transport the criminal out of here. Arms grabbed him around his shoulders like they usually do, his doing the same to the people on either side of him, creating a small huddle where their faces can almost touch their neighbours.
Katsuki had glanced to his left, spotting Izuku’s tense face just a centimetre away, their arms thrown around each other's shoulders simply for the sake of the huddle. On his other side was a faceless informant—someone Katsuki had never met before. He usually hated casual touches like this, especially from strangers, but this was work, and Katsuki threw his personal life away and became pro hero DynaMight on his shifts.
Almost all of his personal life.
“Deku, are you fucking kidding me? We should go in on separate sides. You know how big this fucking hospital is!” He snaps, glaring at Izuku on his left and slightly knocking his body to the side with his own. The huddle rocks with the domino effect of his actions. “We have to cover all that fucking area alone for the next twenty minutes!”
“I know that!” Izuku fires back, glaring. Katsuki doesn’t even see him take a second to breathe as he rushes out, “And that's why we should stay together! We don’t know the villain's quirk, or anything about them for that matter!” Izuku groans frustratedly. “What happens if one of us ends up engaging in a fight with them alone and can’t handle it? Then we’d only have one hero for the entire hospital!”
“Shut up! You think I can’t handle this on my own?!” Katsuki snarls, breaking out of the hurdle to grab at Izuku’s collar.
Izuku’s gloved hands fly up to grip against Katsuki’s wrists, and he frowns at Katsuki, annoyed and exasperated. “I didn’t say that!” Izuku tries to shake Katsuki’s hand off, saying loudly, “But just in case, let's stick together so we can back each other up!”
Katsuki opens his mouth to retaliate and shout some profanities, but some extra face he’s never seen in his life on the other side of the huddle jumps in, her voice stern, “Okay, DynaMight and Deku, it’s nice to see you both still acting the same even during a Grade-4 threat, but let's hurry it up with the dick comparison competition and get inside that damn hospital!”
Katsuki’s head whips to glare at her, and he ignores how Izuku jumps and his cheeks go pink from blushing—which Katsuki assumes is because he's embarrassed about his 'improper' actions during a borderline terrorist attack.
Katsuki drops izuku, stepping away, listening to a large eruption explode from inside the hospital, black smoke rising from the top. “Let’s just fucking go!”
Katsuki propels himself forward, blasting the wall of the hospital open and ignoring Izuku’s voice call after him, “Wha—wait! Uhg, Kacchan! Don’t go in alone!”
The inside of the hospital shakes, unnaturally and violently as if it’s being broken apart slowly, one support pillar falling at a time, forcing Katsuki to go off-balance and sending him tumbling forwards.
The entire building is crumbling apart, and it eerily reminds him of Shigaraki’s quirk, and he worries that it’s actually that man's quirk, even if Shigaraki has been dead for years following the end of the war during his first year of high school.
His eyes quickly catch, on his far left, a piece of heavy concrete barrelling towards an unconscious man stuck in his hospital bed with obvious plans to crush him to death.
Then on his right, a young nurse, struggling to stand with a gnarly head wound and most likely concussion, also at threat of being crushed to death by a piece of the hospital's heavy wall.
“On your left!” Katsuki screams over his own tunnelled explosion, separating a chunk of the hospital wall into little pieces above the nurse, saving her from being crushed under its weight.
A zap of air and a bang ring around him, flashing in the corners of his eyes with green sparks. Katsuki steadies his feet and starts running down the hallways.
“We need more heroes on scene!” Izuku yells, jumping in front of Katsuki and smashing a heavy metal door open. His hand is up against his ear, and the glowing yellow light of his earpiece signals he’s talking into it and not at Katsuki. “The hospital’s too big—three more injured!”
Katsuki holds back a frustrated yell as he spots the two nurses and doctor huddled together, bones awkwardly crushed under the weight of an upper floor collapsing down onto them. He can only see the parts of their bodies that stick out from under the rubble, blood pooling around them and staining their white scrubs.
One of the nurses tiredly looks up at him, eyes bloodshot and mouth hung open, and she croaks, “Please… save us.”
Katsuki feels a chill run down his spine.
His own earpiece crackles to life, glowing yellow, and a distorted voice comes through it, “We have Uravity and Earphone Jack on scene now, so please leave the rescue efforts to them. The villain's location has been confirmed. Head to the west nursery wing.”
Izuku and Katsuki spin west so fast they can’t see the environment around them clearly, it blurs with the speed of their movements, and they’re off—flying towards the nursery as fast as they can.
Izuku yells towards Katsuki, his face pale and grim, “If he’s in the nursery, do you think the babies—” Izuku chokes a bit.
It doesn’t have to be finished. It’s too hard to say, even. Katsuki doesn’t answer, just growls low in his throat, and they both know they’re praying the children in the nursery are unharmed.
The building shakes again, and Izuku grunts in frustration as he’s thrown off-balance and flung to the side with Katsuki, before they’re scrambling up in the air again, flying through the hallways.
Katsuki’s eyes keep catching terrified faces as he explodes past, but he can’t stop to check on them, to see if they’re alive, to even take the seconds to count and report how many people he’s coming across. He has to keep moving. The faces just flash by.
The light pink and blue bubble letter sign hung up above the door at the end of the hallway looks out of place with the overall apocalyptic view of the hospital—destroyed walls and bursting pipes surrounding it. Katsuki blows the door underneath it off its hinges, and they both charge in, stuttering to a stop as they look around.
There’s less destruction and chaos here, not as many broken walls and crushed people, but the sound of echoing and broken babies crying sends a shiver down their spines. The air is tight, suffocating, and they step lightly as they survey the area, backs to each other to cover all their blind spots.
A loud bang and crash, then a woman screaming has both their heads turning to a far door, with the words ‘Planned Parenthood’ stuck to its plaque.
They break the door down and have to pause at the scene in front of them.
A woman, beaten and bruised, is laying on the ground with her knees up to her chest and her hands over her head, screaming pleas to let her go.
A man, older, rougher-looking, stomps hard on her back, forcing her to cry out in pain. It's just a single second after that when the man locks eyes with the two heroes in the door.
Katsuki can feel the agitated way One For All crackles in the air next to him, and Izuku spits, “Let her go.”
The man giggles, eerily high pitched for his rouge demeanour, and yells, “Look at that, the heroes are finally here!”
The woman’s head whips up to them, and her face breaks into an ugly sob. She reaches both arms out towards them, blood dripping from her fingertips, and screams, “Help me! Please!”
Katsuki feels the way all his bones tense with the urge to lunge towards her, but he stays still, sharp eyes watching the criminal above. Izuku tenses too, but he doesn't move for the woman.
They both need to wait and watch.
They need more information.
“Please!” The woman’s voice breaks, and she sobs harder, and then yells frantically, “Please save me!”
The man grabs her by the back of her hair and pulls her backwards, forcing her to crane her neck at an uncomfortably painful angle, and she screams and kicks her limbs against him.
“Let her go!” Izuku shouts, stepping closer, the sound of One For All snapping in the air and around him almost drowning out the crying babies and screaming woman.
The man seems to ignore them, because he growls out just as loud as Izuku, crazed eyes burning holes into the woman. “This bitch was supposed to give me a fucking kid! I warned her, if she didn’t, I’d take her entire fucking hospital out!”
“Nobody gives a fuck about your sob story!” Katsuki yells back, stepping towards the pair with Izuku. This man was starting to sound like some alleyway sexual assaulter, and not a Grade-4 threat and practical terrorist. “You either let her go or we take her from you!”
The man laughs, eyes going back onto the two heroes, and he shouts, “If you come any closer I’ll take every wall in this fucking building out!”
And then as if to show he means business, the man’s fingers start to glow a deep blue as he touches the concrete of the wall next to him.
The building starts to tremble, walls around them cracking and splintering from where his fingertips touch the material like a poorly crafted spiderweb.
Izuku yells and jumps forward suddenly, so fast Katsuki has to use extra force in his explosion to keep up pace with him. The woman screams, her body thrashing, throwing her arms back out towards Izuku and Katsuki so they can—he doesn't even know what she expects them to do with that without capturing the villain first. Grab onto her? Pull her out? Support her?
Movements mush together in Katsuki’s brain, and before the criminal can react, and in a show of placating the woman’s fear, they both grab one of her hands, all the while, in what looks like a knee jerk reaction, the villain’s hands fly off the woman and up to defend the front of his face.
Then everything goes white.
Katsuki hisses, accidentally cursing, “Fuck!” before he blinks quickly, his eyes focusing quicker than anyone else’s in the room thanks to training his body against shocks like these, because his quirk could blind him if he wasn't careful.
The man’s hand is off the wall, and he’s yelling, frantically rubbing his eyes, while Izuku is staggering at his side, wincing with his eyes closed, fists outstretched in the air defensively.
The woman lays on the ground, silent for the first time since they found her, back to the air in a fetal position.
It’s an opening.
Katsuki lunges. He yells, grabs the villain by the face and slams him sideways into the concrete wall while a blast erupts from his palm. The man goes limp in his hold, Katsuki slamming him into the wall with enough force to knock him out.
Katsuki drops him and lets him fall to the floor in a heap of limbs.
Izuku is at his side in the next half-second, forcing the man’s arms behind his back and shoving heavy metal quirk-cancelling cuffs around his wrist. The man rolls around as they move him, unconscious and subdued.
They share a glance—haggard breathing and stony faces, and they both know they’re thinking the same thing.
This was the worst call either of them had gotten all year.
***
Hero work never ends after the villain is taken down on scene, though.
After the villain is thrown into the back of one of their vans and taken away to prison, a gruelling, and frankly boring, process starts.
With an attack as large as that, all the heroes on scene are required to do a medical check up immediately after the capture. With so many people involved, between the heroes, villains, and civilians, accidental quirk use is pretty common, and sometimes those quirks could be invisible or dangerous, and the heroes on scene need to be cleared before they can go back into society.
After, everyone on scene needs to make an immediate report—just bullet points of what happened. Then there's more reports, and even more reports, damage invoices to fill, insurance companies to contact, and at the same time if it's needed, search and rescue operations take place.
It took two full days for the Hero Commission to finally declare the search and rescue operation on Musutafu hospital over. The damage was so severe that the entire hospital was destroyed and so unstable that even top rescue heroes like Uravity had to take extra caution when searching.
This was an inevitable fact from the start of the operation, but it was still hard to swallow that patients that couldn’t escape or were otherwise too ill to save themselves, nurses and doctors who were trying their best to evacuate everyone, and an array of visiting civilians who weren’t familiar with the hospitals emergency codes were the main victims of the attack. Helpless civilians and people who were heroes in their own right.
There were over a thousand people found in the wreckage after the attack, close to three-hundred people were critically injured, and over a hundred people had lost their lives. And now there was no local hospital to treat them at.
The hospital itself was the biggest in the area, and most of the victims were not killed in gruesome or devastating ways, but were simply killed via the fact the hospital eventually lost power for its generators and most of the individuals on life support succumbed to their illnesses. Only a handful of people were crushed to death, which was a small mercy, but not big enough to erase how devastating this attack had been.
It was dubbed as one of the largest massacres of their generation.
All the pro heroes involved were currently getting attacked by the masses by the sheer destruction that occurred. Society had questions—who let a villain like that in the hospital? Why did it take so long to stop the attack? Are the heroes of this generation capable enough?
Which is why Izuku and Katsuki, along with their agency heads, Mirio and Fat Gum, a few of the investigators involved in this case, and even Aizawa and now long retired All Might, were sitting in a meeting room together.
Katsuki glared around the room, grumpily wondering why Aizawa and All Might keep showing up to represent their asses even though it's been years since they graduated high school.
“This disaster was entirely unpredictable.” One of the investigators says, finger tapping against her clipboard. “The villain had a powerful quirk that allowed him to destroy buildings with a very large range, and he chose a hospital, filled with incapacitated individuals, which is why the casualty count is so high. That’s the story I want all of you to say to the media.”
All Might’s old and weary voice pipes up, a small smile on his face and his eyes glancing between Izuku and Katsuki—Katsuki has long decided to ignore that All Might’s eyes will always linger on Izuku more than him—as he says, “Don’t beat yourselves up too much. You saved thousands of people that day.”
Katsuki grinds his teeth together, a helpless feeling bubbling up inside of himself. The 'saved thousands’ that has been thrown around non-stop by everyone involved seems completely irrelevant. His mind unhelpfully supplies the fact he let more than a hundred people die that day, and another three-hundred get injured. He wasn’t fast enough to save those people.
Katsuki’s eyes flick to Izuku, who's biting his lip, his eyes cast to the floor—he knows he’s thinking about the same things he is.
The first major disaster of either of their careers.
Katsuki was having a hard time holding the monstrosity of his failure inside of himself.
Mirio joins in the conversation, his voice frustrated and exasperated, “I just can’t believe the guy who did this wasn’t with some villain organization or… something. He just had a grudge against that one Planned Parenthood worker.”
“Oh, that’s right.” The investigator perks up, flipping through papers on her clipboard and then pausing. Katsuki hates the pitiful look she sends both him and Izuku. “I have some information to share with you both about her.”
“Is she okay?” Izuku asks instantly, face scrunching up in worry.
Katsuki rolls his eyes, they had saved her, at the very least, so he says, “She better be.”
The investigator chuckles for a second before her face goes flat again, and she clears her throat, saying, “Yes, she’s doing very well… but, I hope you’re both ready for what I’m about to tell you.”
Katsuki feels his body go tense on instinct, his mind racing to figure out what she’s going to tell them before she can. He doesn’t know what he’s going to do if he’s told there was another failure on top of all other ones.
He glances at Izuku, who’s watching him with an equally contemplating look before he turns back to the investigator.
“Out with it.” Katsuki spits, failing at hiding the frustration in his voice.
The investigator takes a deep breath in, face twisting up, and she breaks her professional demeanour and looks genuinely aghast, mumbling, “How do I even explain this?”
Aizawa steps in then, which throws Katsuki for a bit of a loop—what do they all know that he doesn’t?—his old teacher’s face and tone as neutral as it’s always been when he asks, “You both remember that flash of light when you were attempting to intercept the villain, don’t you?”
They both nod, jerky and small, staring at their former teacher. The beat-in respect for Aizawa hasn't left either of them, and Katsuki has to bite his tongue to stop himself from yelling and instead silently braces himself for the next bombshell.
“That was her quirk.” Aizawa continues, and Katsuki’s mind is already racing, trying to answer ahead.
Why wasn’t this mentioned during their medical check up after the capture? Does her quirk affect other people silently? Is he poisoned or something? Can her quirk affect his quirk?
Aizawa speaks louder this time, and both Izuku’s and Katsuki’s heads whip towards him instinctively, “Enough. I know those looks. Listen to the full explanation before jumping to conclusions.”
The investigator finally jumps in, clearing her voice before speaking, a bit stiff and uncomfortable, “Thank you for leading, Aizawa, but I can take it from here. Her quirk is called New Life. Simply, she can create a child out of whoever she’s touching, as long as there’s two people and they touch her at the same time. That white light was her quirk activating, which means creating a child.”
There’s a deafening and tense silence in the room now. Katsuki doesn’t even dare look around at all the eyes he feels watching him.
A child.
Izuku jumps out of his seat, literally, hands slamming into the conference table in front of him as he yells, voice high and frantic, “What?!”
Katsuki sits there, entire body frozen in place, staring a hole through the investigator at the head of the table. He feels like someone dumped a bucket of ice cold water all over him, and he has to dig his nails into the palms of his hand to keep himself from exploding.
He’d like to laugh at that, think about that information as just a bad joke, but nothing about this awful mission has been a joke.
Izuku continues his high pitched stammering, grating even harder against Katsuki’s fraying nerves, “So, if it activated, and me and Kacchan were touching her, would she have made a child between the both of us? How does that work? Is the child actually alive or is it a part of her quirk? Will it disappear after a certain point? What—"
“Shut up!” Katsuki yells, finally feeling himself snap, and Izuku is shocked back to reality.
Nowadays, Izuku doesn’t shrink back from Katsuki’s brash attitude, but this time he quietly sinks back into his chair without another word.
Almost reflexively, Fat Gum pats Katsuki on the shoulder, murmuring close to his ear, “Let’s just listen to the whole story, okay? No freaking out yet.”
The investigator sighs, rubbing the bridge of her nose like she has a headache, and Katsuki wants to roll his eyes hard. She’s not the one being told some bullshit about a freaky quirk kid right now.
“Yes, Deku, the child is alive and not simply a part of her quirk. Her quirk is a miracle, if anything.” She says, voice flat. “It’s why she worked in Planned Parenthood at the hospital, she could give to-be parents who couldn’t conceive a biological child, well, a biological child without the need for… intercourse and pregnancy, to put it simply.”
Izuku looks like he’s going to combust from sheer anxiety, which is impressive since Katsuki is usually the one blowing up. Katsuki just feels a cold lump settle in his stomach, and his body shakes, mind racing to keep up.
She could give to-be parents a biological child.
Izuku stutters, his words not making sense to even Katsuki’s ears, “So then—does—what does that mean? Biological? Related? The kid? Alive?”
The investigator takes a long, agonizing pause, so long that Katsuki imagines himself jumping over the table and grabbing and shaking her until everything just falls apart, before she says, “Congratulations, Heroes DynaMight and Deku. You have a child.”
Oh, fuck no.
That’s when Katsuki feels his world tilt and blow up. He thinks its justified for him to blow up now, so he screams, “What the fuck?!”
Izuku follows quickly afterwards, looking sick and mumbling, “Oh, no, no, no! We can’t—"
“You’re going to have to.” Aizawa cuts them off sharply, his gaze on both of them cutting their respective panics short. “Unless you want that kid to die.”
They both pause, faces twisting up, and the investigator sighs heavier than she has all night. Katsuki really wants to punch her in the face.
She finally explains, “She makes to-be parents go through a very rigorous screening process when she decides who can use her quirk. The quirk-child cannot be separated from at least one parent for more than a week during the first year after their creation, or else they will gradually become sick and eventually pass away.”
Both Katsuki and Izuku stare at her with open mouths and wide eyes.
“That’s the downside to her quirk. Since the child is made from the DNA of two people, it needs to be around that DNA. This is why that disaster even happened. The man had come in to have a child made between him and his girlfriend, but they never passed the screening to ensure the child would have a successful first year. He was upset about that and attacked the hospital.” She finishes, eyes watching both of their faces.
Izuku looks pale when he gasps and says, “Oh my God. Oh no.”
Mirio looks just as stunned as Katsuki and Izuku when he says, voice tight and lacking his usual enthusiasm, “If they aren’t around the child it would get sick and die. When you say sick, what do you mean? Can the child feel—is it normal?”
The investigator looks a bit grim when she replies, “As soon as the child is created it is essentially a completely normal human being. It can feel pain, happiness, sadness, have goals, motivations, learn things, everything. The child is human.”
Izuku looks even more crushed, and Katsuki watches his face fall as he says, “What are we going to do?”
Katsuki can only sit there, watching his life swerve into a completely different direction than he had planned, his jaw clenched tight.
Katsuki feels Fat Gum’s arm tense against his shoulder, and watches his face turn a bit pinched and worried before he voices, “These two haven’t even seen the child yet. Are they okay?”
Katsuki feels his mind falling apart even more now, replaying everything he’s heard.
Sometimes he curses himself for being so smart, because he’s already thinking up questions that he needs to know the answers to, like: Is it even alive anymore? Does he have to do this? Can he even be a parent? What happens to his work schedule? Would he have to live with the kid? How old is this kid? What do kids eat? What does it look like? What the hell does he tell his mom?
The investigator shuts any more thoughts down when she says, “The child is alive, though beginning to feel the effects of being away from their parents. I’ve been told they are quite lethargic and feverish now.”
Izuku stands suddenly, his face a mix of worry and resoluteness, before he says, “Can I see them?”
Katsuki wishes he could curse Izuku’s need to help and save everyone, because he knows Izuku is thinking something absolutely insane, like, ‘I’m going to raise this kid.’
The investigator simply nods and stands, walking towards a door to their right.
And then it hits Katsuki—he’s going to have to see this kid too.
After a pointed look from Fat Gum, he stands, awkwardly numb, following behind the investigator and Izuku. She holds the door open for them, and when they walk in, she closes it behind them so no other heroes or investigators follow behind. Katsuki stands next to Izuku. He feels his body shake.
The woman from the hospital fight is sitting on a couch in front of them, bandaged and not in complete terror anymore, but her eyes are heavy and her body looks weak. She’s staring down at her lap.
Katsuki looks down at her lap too, and decides now would be a good time to retire and change his name.
A young girl lays in her lap. She looks barely old enough to be five years old, with ashy blonde hair and pale skin and freckled cheeks. Her eyes are closed, and her body shakes a bit every time she breathes, and the woman readjust a damp cloth that’s resting against the child’s forehead.
Katsuki’s going to move countries too. Or maybe check himself into a senior home where he won’t have to look at a child ever again.
The woman’s eyes flick up to meet theirs, and she must see the absolute disorientation and overwhelm on their faces, because she frowns, her eyes watering just a bit like she might cry.
“I’m so sorry.” Is all she says.
Izuku steps towards her, but Katsuki stays behind, watching Izuku’s hand shake as he crouches down in front of the child and also adjusts the cloth.
His voice is filled with false confidence as he looks up at the woman and says, “Please don’t apologize. I understand. It must have been hard to control your quirk in that situation.”
The woman starts crying then, her body shaking, and the child whines and moves, opening her eyes.
She has big and bright green eyes. Katsuki thinks he might throw up.
“Hey,” Izuku coos, his voice shaking, and Katsuki thinks Izuku might start crying, too. “How are you feeling?”
The little girl blinks slowly, her eyes still heavy from exhaustion. Her voice is tiny and raspy when she replies, “Tired.”
Izuku smiles, running his hand through her hair. “I bet you are. You had a big last few days, huh?”
Katsuki still stands there, watching everything unfold, feeling like he’s in the passenger seat with this woman and this little girl in the driver's seat, driving and crashing and blowing up his entire life right before his eyes.
The girl is more awake now, because she tries to sit up, and Izuku helps move her so she’s sitting more comfortably in the woman’s lap.
Her eyes are so big when she asks, “Who are you?”
Izuku laughs a little, small and scared, but he still puts on his best 'Symbol of Peace’ smile and says, “I’m Izuku Midoriya, or Deku—I’m a pro hero. Do you know who I am?”
The little girl glances up at the woman, and Katsuki catches the smile and nod she gives the child before her small head whips back to Izuku, and she smiles exactly like him and says, “You’re my dad.”
Katsuki is completely caught off guard by the fact she even knows this, and so is Izuku, with the way he flinches and stutters out, “Oh, uh—Yes?”
The woman glances between them, her expression pitiful, and she says, “I’m sorry. Usually when I do this the parents are there when the child wakes up after creation. I’m not her mother and I didn’t want her to think so. It’s confusing for a child her age to not know her parents.”
Izuku laughs awkwardly, waving his hand in the air placatingly as he says, “Oh, it’s okay. Um, she’s older than I thought she would be.”
The woman laughs quietly, “Yes, well, that’s a downside to my quirk—the children I create from it will pop out with random specifics, like age. Actually, you’re pretty lucky to have gotten a child so young.”
Katsuki doesn’t think he’s lucky. Izuku just hums and nods his head.
The little girl's eyes trail over to Katsuki, and she smiles wider, sticking one of her small and chubby fingers in the air to point at him. “Who are you?”
Izuku looks over at Katsuki, gives him a look urging him to say something, and suddenly Katsuki is put under the spotlight.
He clenches his jaw, finally gritting out between clenched teeth, “Katsuki Bakugou.”
Her eyes sparkle, and she drops her hand to her lap, kicking her feet as she says, “You’re my dad, too.”
Izuku nods, catching the girl's attention, and he asks softly, “What’s your name?”
She laughs and says, “Aiko.”
Izuku smiles and nods his head, “That’s a pretty name!”
The woman nods slowly, before she says, “Um, I ended up naming her, I had to fill out her birth certificate already—feel free to change it anytime.”
Izuku stands and shakes his head, smiling at the woman and the child in her lap. “I like it. You picked a great name.”
“I like your name too.” The little girl says a bit cheekily, smiling at Izuku before her eyes trail over to Katsuki, and she adds, “I like yours too, dad.”
Katsuki can’t believe he's being called dad.