Notes

Hello, and thanks for checking out this story! This is the final chapter, and I'm really happy with how it came out. I didn't really, uh, follow the prompt Supernova much - though to be fair, it was a bit vague! - but I hope you all enjoy anyway. This is probably the chapter I'm most happy with, since I've been wanting to write something like this for a long time. I'm really glad I got to! This is longer than the other two chapters by quite a bit, coming in at 4.5k-ish words, so I hope you guys enjoy.

I don't have anything else for Kacchako Positivity Week, so this will be my last entry! I'm very proud of myself, though - 4 complete days, spanning over 10k words! And my first time really writing Kacchako, too! Thanks to everyone who checked out this fic, I really hope you enjoy this chapter! Thanks again for sticking with me if you did, and hopefully I'll see you guys again on whatever I write next for Kacchako!


Chapter Three - Supernova

"Do you want to get married?" Katsuki asked her one day, faking casualness the best he could. In truth, it was a question he had been thinking about for a long time - since she had beaten him in their last Sports Festival back at UA, five years ago. They had only been dating for about a year at that point, but he remembers the thought so clearly coming into his head as she kicked him out of the arena, winning the match.

I'm gonna marry this girl someday.

He had been pissed at himself and shook away the thought in the moment, thinking that even though he had the time for a relationship now, it didn't mean he would once they were both pros. He knew the risks of dating someone, of having a family as a pro hero; the main risk being that he would never be around.

But now, five years later, six years into their relationship, he had finally come to the conclusion that this was it for him. There was no other person he would rather get beaten by, there was no other person that he would enjoy slow lazy mornings with, playing stupid video games with, have stupidly long conversations about nothing with… There was nobody else. There hadn't been since he was a teenager. It took him long enough to realize it, but now he couldn't get it out of his head.

Ochako sputtered at the question, nearly spitting out her tea. "Are you proposing to me, Katsuki?" She asked once she caught her breath, answering his question with one of her own. He scowled at her, a blush spreading to the tips of his ears.

"Not right now!" He huffed. "It's just a question. Don't think too much about it."

She let out a soft chuckle, leaning into him on his couch. "If you're going to propose to me, it better be huge," she joked. "Like, so big nobody will stop talking about it for years."

He knew she was joking. Ochako didn't like to make big spectacles of her personal life, preferring to keep these things away from greedy media outlets. It was now one of her appeals as a hero, she was a very child-friendly one indeed. But the more he thought about it, the more ideas came into his head of how he could ask her for real. Before he knew it, he was grinning wickedly, and she was hitting him on the arm.

"Hey!" She laughed, continuing to smack him. "You better not do something stupid," Ochako warned him. "I'll never forgive you!"

Katsuki rolled his eyes, letting her berate his arm in jest. The weight of the small, red box in his pants pocket burned his thigh, but he would wait. If he was going to do this, he would do this properly - Katsuki Bakugou never half assed anything, after all.


Katsuki had been through every possible scenario in his mind, trying to figure out what could possibly be the best way to go about this. Proposing over a home cooked dinner was his first thought, but he thought that was too mundane. It wouldn't feel like him to Ochako. His next thought was doing it in a fancy restaurant, but the two of them rarely went out to eat, preferring take out or cooking at home. She would definitely find it too suspicious if he suddenly wanted to take her out somewhere nice.

Plus, he snorted to himself as he continued his patrol, she would throw a fit at spending that much on a dinner. Yes, despite the fact that they were both rather successful pros now, Ochako couldn't kick her frugal ways. She sent a decent chunk of her paycheck to her parents every month, who were now happy and retired thanks to their daughters encouragement and support.

Another idea he had thought of was during a walk in a park, but the same issue presented itself: he was sure it wouldn't feel genuine. Katsuki was an all or nothing kind of person; he may have gotten a bit more refined around the edges since UA, but he was still… intense. He wanted himself to come through in his proposal, to make sure Ochako knew that this was genuine.

He knew he was probably being stupid about this, but he couldn't help it. He hadn't felt this nervous about anything in his entire life. Feeling out of his element wasn't something he was familiar with at all.

Sighing, frustrated, he paid no mind to excited civilians as he continued walking. His mind said ask someone, but his pride said hell no. Maybe he had gotten better with some things since UA, but asking someone for help on something so personal was out of the question. The only person he would ask about something like this was Ochako herself, and that would defeat the whole point.

"This is stupid," he muttered to himself, unaware of the presence that had just fallen into step behind him.

"What's stupid, Kacchan?" Deku popped up out of seemingly nowhere, every person on the street pointing and waving madly. The number one hero was often seen helping out on his friend's patrols, but that didn't stop people from going crazy over it.

Katsuki rolled his eyes at the unwanted attention, keeping his surprise from having Deku sneak up on him to himself. "You, nerd."

Deku laughed at the joke - years had gone by since Katsuki had ever truly been an antagonist to the number one hero, and now he merely laughed off his insults, knowing they weren't intended to hurt.

"Is something bothering you?"

Rolling his eyes, Katsuki let out another aggressive sigh. The last person he wanted to see right now was Deku, who this would come easily to despite having never been in a relationship. He always seemed to know exactly how people worked; it's part of the reason he became the number one hero so easily. He took after All Might so well.

Luckily, Katsuki had long since worked past his feelings of inadequacy when it came to Deku - for the most part.

"Yeah, you a detective or something?" Katsuki huffed. People were watching them intensely, taking photos and waving everywhere they went. Talking about something so personal where so many people could hear, and maybe record the conversation was not his idea of helpful.

Deku seemed to be in thought for a moment, probably trying to figure out exactly what was on his friend's mind. He was still just as persistent as he used to be, much to Katsuki's chagrin.

"Well, if you don't want to talk about it right now, that's okay!" Deku smiled up at him. "But if you change your mind, you know where to find me!"

"Yeah, yeah," Katsuki looked up at the sky, ignoring the flashing of cell phone cameras. "Thanks, nerd."


It had been a week since he had begun thinking about how to propose seriously, and he had made absolutely zero headway. Nothing in his mind seemed right about it, and it had lead Katsuki to question whether or not he was even ready for this.

In the safety of his own mind one morning, he wondered about married life, and what it would be like. He and Ochako didn't currently live together, but they did stay over at each other's apartments fairly often, so waking up next to her was nothing new. He certainly wouldn't mind doing it every day, however.

A lot would change, he realized as he slowly sat up from the mess of blankets covering him. There would be no more mornings to himself, and no more his space and her space. They were both people who liked things done in their own way, but he knew that it wouldn't be a problem regardless. They could adapt.

As he shrugged himself out of bed and got changed into his hero outfit, he reaffirmed that he was ready for that step with her. It wasn't that he wasn't ready - it was really as simple as overthinking it, he supposed. He slipped the red velvet box into the clip pocket in his pants without thinking about it.

He would do it tonight, Katsuki promised himself. He would do it tonight, they were supposed to have dinner at his place tonight. He could make her some udon or something he know she'd love, even buy her that specialty mochi she always talked about, and propose to her after dinner.

He nodded to himself as he finished getting ready for the morning, putting his toothbrush back in the cup.

Tonight.


That was his plan, anyways, until the day had just been so horrible to him he had no desire to be romantic that night.

It was annoyance after annoyance today for Katsuki, first with some too-eager fan of his refusing to stop asking questions even when he was trying to apprehend a villain, then with having to work the rest of his patrol shift with Monoma of all people, and then…

The list went on and on. Today had not been his day. By the time Ochako came over, he was pissed and exhausted, and the two of them just ended up grabbing food from the convenience store down the street from his apartment.

It wasn't a big deal, he told himself as he got comfortable on the couch with Ochako in front of his TV. I'll have plenty of times to propose properly. Next week we're doing the same thing, I can do it then.

He groaned, and Ochako pushed him up from his place on the couch to begin massaging his shoulders. He rolled his eyes but let his girlfriend beat him up anyway, not really minding after years of getting used to her frequent touches.

Ochako was a very touchy girl.

"What's got you so bothered today?" She asked, despite having heard his dramatic retelling of the days crazy events while out grabbing dinner.

Katsuki huffed out a sigh, trying to let go of some of the tension in his shoulders. The TV was on a low enough volume that he could hear himself breathe as he took a deep breath to try and calm himself. "I'm not sure," he answered her honestly. "Normally this kind of stuff pisses me off, but today it especially pissed me off."

"I noticed," she chuckled back. "But whenever you do figure it out, you know I'll be here to listen!" She patted his back before continuing to work her magic into his shoulders.

"Yeah," he smiled slightly. "I know already."

He could do it now, he reasoned with himself. He could pull out that box and just tell her straight up, in this frighteningly domestic moment, that he wanted to continue having these frighteningly domestic moments with her for the rest of her life.

Shifting slightly on the couch, he thought about it for a moment more. The box was in his room at the moment, tucked away in a drawer he knew she'd never bother to check. It would be so easy, really, but he couldn't. He wasn't sure what stopped him, then - nerves? Uncertainty of how she'd take such a bland proposal from him? - but he decided that any reason was a good enough reason.

He was beginning to wonder if he should even bother to try and plan this at all, really. It seemed like every time he came up with a plan he would, he scowled at himself, chicken out.

"What'cha thinking about now?" Ochako's voice startled him out of his thoughts, and he straightened immediately, making the couch creak.

"Nothing important," he said, frustration creeping its way into his speech.

It was Ochako's turn to roll her eyes. "Are you thinking about that obnoxious fan still? I know our fans can be a bit," she paused, "extreme, but really! You deal with them all the time!" She was struggling to keep the laughter from her voice, and took it out on his shoulders by digging in deeper.

"I wasn't thinking about the fan, Christ." He didn't want to tell her what he was thinking about, but he was no liar. Not even about something so small. He winced as she dug into him a bit harder again. "Be careful, would you?"

"Yeah, yeah, okay," she finally let out a laugh.


It started out like just another day on patrol for Katsuki. Ochako had left earlier that morning, having a slightly earlier shift then him, with the promise that she'd meet up with him later. Often, if they were working in the same sector, they would work together, which both their company and the public loved. Ground Zero and Uravity were a match made in hero heaven, after all - their quirks complimented each other perfectly on the battlefield, and the public couldn't get enough of them.

Like in All Might's prime, villains were a lot more cautious then they were when he was at UA. With Deku effectively taking All Might's place as the symbol of peace, and almost everyone in their class making a huge name for themselves in the world, villains seemed to be a lot less willing to stir up trouble nowadays. It made for an easy paycheck, but Katsuki was getting bored.

However, today was not a day for boredom.

"Watch it, Uravity!" Katsuki called out as he blasted a falling chunk of concrete out of the sky. "You're normally not this flustered, stay focused."

And that was true: Uravity was among one of the calmest of their friends when face to face with a villain, usually. She had an advantage over a lot of their class with her internship, and Ryukyu and Nejire had quickly taught her how to keep her head on straight when faced with a crisis.

Unlike Katsuki, who had to learn to reign in his temper on his own. Albeit that was mostly out of pride, but the point remained; seeing Uravity start to lose her cool was unsettling, to say the least.

The villain, with a name Katsuki couldn't be bothered to remember, grinned at him as he sprinted down the building, hoping to catch him off guard. Katsuki rolled his eyes before sending a small blast to easily push him off course and farther away from the crowd that was behind him.

Ochako was still in the air, holding another chunk of concrete as she searched for where the villain had fallen. This villain was persistent, and again used his quirk to try heading up the side of a different building to get a lead on the two heroes.

"Blast him down, I don't want to break a window," she snarked, taking her eyes off the villain to check the ground for civilians before dropping the concrete slab. Katsuki nodded at her request, again easily taking him down from the building and forcing him to land in a better position for him and Ochako.

Ochako landed hard on the ground next to him, facing the direction he had sent the villain flying. "Ground Zero, you focus on keeping up the smoke, I'll take this one out," she said confidently. Before Katsuki even had a chance to react or say something about her plan, she had taken off towards where he had landed in the alley.

Katsuki swore, but shot another explosion at the ground, letting another thick layer of smoke take over. He knew that Uravity's helmet had been upgraded ages ago to help her see, but he couldn't see jack shit.

"Another, Ground Zero!" He heard her shout out, and he did as he was told - he hadn't questioned her calls in years. Almost immediately afterwards, he heard a loud thud as someone hit the side of the building.

Katsuki smirked as the smoke cleared up, revealing a passed out villain and a victorious Uravity standing over him, not even panting.

"That was easy," she said, smiling at him over the villain's unconscious body.

The scene struck Katsuki so hard he nearly took a step back. Ochako, in her full hero gear, standing confidently over a defeated villain that she had barely even needed assistance with. It was the most beautiful sight he had ever seen. He gulped hard, his heart pounding. He wasn't quite sure what was wrong with him; he had seen this a million times, he and Ochako had been working together since they got out of UA, and even in UA they had worked together plenty.

"Ground Zero?" She asked, coming over to see what was up. "Are you okay?"

Without thinking about it, he got on one knee. This was the moment he had been unknowingly waiting for. Katsuki didn't even have to think about it - not that he was thinking much at the moment, regardless.

"Ground… Zero?" Her breath hitched as he pulled out the red box he had been keeping on him for weeks, now.

"Uravity," he paused, mulling it over in his head. "Ochako," he started again after a moment. He was aware that the crowd behind him had all went silent, but he tried his best to ignore the audience. "I'm really bad at this romantic shit. I'm sorry. I've been trying to plan this out for a week now and it was pissing me off," he told her honestly. She let out a little laugh at that, but she was almost breathless. He didn't mind, though; it helped his confidence.

"I hate having you go to your own apartment when you come over to eat dinner. I hate that waking up to you isn't permanent. I am sick of the news predicting when this will happen, and I am so sick of Kirishima asking when I'll man up and ask you already." Katsuki was aware he was sweating, and he was aware he was spouting whatever came into his head. He hadn't planned a speech at all, but Ochako had the widest smile he'd ever seen on her, which he took as a good sign.

"I'm sorry I'm so bad at this," he confessed to her honestly, "but I think you know exactly how I feel about you. Ochako, will you marry me?"

As soon as the words left his lips she was on him in an instant, her helmet thrown off to the side forgotten.

"Yes! Yes! Of course I will!" She laughed as she kissed him, and Katsuki let himself melt into it for a moment before pulling back to put the ring on her finger.

It was only then he remembered that they had an audience, as cheers and flashes of cameras erupted in the background. Katsuki froze as soon as the ring slid onto her finger, and so did Ochako. Both their faces turned red quickly, the tips of his ears warming as well. They quickly jumped away from each other, extremely embarrassed.

"Well we should, probably, get this this guy to the station," Ochako blabbered, putting her helmet back on hastily. Katsuki nodded, looking everywhere but at her or the crowd.


Neither of them could make it through the rest of their shifts, and Ryukyu told them both to go home early.

"Congratulations," she told them warmly before her eyes narrowed. "But neither of you are getting any work done with the way the public is acting today. I'll send Nejire out to cover."

Nejire looked up immediately, pouting. "But I was just reading the article about them!" She whined, pointing to her phone. "Your proposal sure was romantic, Bakugou. The specific callout to Kirishima was a nice touch," she snorted.

Katsuki rolled his eyes, and Ochako laughed lightly at her comment. "Thank you though, Ryukyu," she said, smiling at the older hero. "It's very kind of you." Katsuki nodded along, awkwardly standing off to the side.

He wasn't close to Ryukyu or Nejire like his girlfriend - now fiance - was, and had always found Ryukyu's kindness almost uncomfortable for him to deal with at times. He wasn't used to people older than him taking his rudeness in stride.

"See you tomorrow, then," Ochako said, tugging him out the door. Katsuki didn't even flinch.

"So," she looked at him with big eyes once they had made it to the elevator.

"So?"

"I can't believe we're engaged," she told him, marveling at the ring he had picked out. It wasn't anything too extreme - he knew Ochako would've killed him had he spent too much on it - but it was something he had put a lot of thought into when he bought it. There was a pink moonstone sitting in the middle, with two very small diamonds on either side of it. The moonstone wasn't a common choice for an engagement ring, he had found out at the store he went to, but it had instantly reminded him of her when he saw it.

Of course, he would never tell her that, but he was sure she would somehow find out anyway.

He nodded in affirmation at her statement, smiling a small smile at her. He was still embarrassed, truth be told, but he was doing his best to not let it show. He had gotten a lot better since UA, but some things would never change, he guessed.

"I really can't believe it. I thought I was going to have to propose until you brought it up so suddenly last week," she joked as they started their short walk back to his apartment. He hadn't asked if she was coming over tonight, and it suddenly occurred to him that they would get to move in together soon.

He rolled his eyes at her, forcing himself to focus on the present. "Yeah, well, can't have you do all the work, can I?"

"I sure did all the work with the villain today," she said cheekily, and Katsuki scowled in response. He opened his mouth to reply, but closed it instead., shaking his head.

He had finally done it thanks to her taking the lead today, after all. He couldn't be that upset about it.


That night was filled with more text messages and calls than Katsuki and Ochako could ever remember getting. All of their friends from UA immediately were on them both, saying how they needed to all get together and have dinner soon to celebrate, much to Ochako's delight. Obviously, they both got calls from their parents; Ochako's, happy for her and also wanting to see them both soon to celebrate, and then there was Katsuki's mom.

He had spent almost twenty minutes on the phone with her, fighting with her over how he hadn't told her before hand. Ochako took it all in stride, apologizing for him, to which Mitsuki instantly calmed down and started telling Ochako what an angel she was.

And of course, there were many emails from news agencies who didn't have their personal numbers, trying to schedule interviews about the very sudden and very public engagement.

Sometimes Katsuki hated being a hero. The publicity was something he had known about for years, and yet was something he just couldn't get used to. He had always been a private person; having everything about his life suddenly be unprivate was aggravating to him. Ochako was similar, but she took it much better than he ever did. Her attitude towards a lot of things helped him deal with his own issues, often. He didn't get nearly as mad about publicity bullshit after seeing how Ochako handled it.

"I suppose that's why I'm marrying you," he mused to her out loud, as the two of them lounged around on his couch, watching the news talk about them.

"Oh?" She questioned, looking up at him from where she was tucked into his arm. "Why are you marrying me?"

"You make things make sense," he told her simply, his eyes not leaving the TV screen. Currently, they were showing one of the fan recorded videos of the proposal, and he even found himself kind of glad for it - he knew Ochako and his parents were saps and would love watching it in the future.

She smiled at his answer, pushing herself even closer into him. "You make things make sense, too."


Epilogue

Hikari Bakugou walked into the arena proudly, not a trace of nervousness on her. She was more than ready, despite this being her first Sports Festival at UA. She knew her parents were watching from the bleachers, and she was sure as soon as her match started she would hear her family's loud cheers. She was ready to make them proud.

The whole day had gone by much more quickly then she would've expected it to; the first two tasks being fairly simple. Thanks to this, Hikari had a lot of energy remaining, and she was ready to pour it into her opponent.

Her first opponent as Touma Todoroki, and Hikari grinned wildly at this. She almost felt bad at the pummeling her best friend was going to get. He was the only General Studies student that had made it this far, and there was definitely a reason for that.

"You ready to grovel, Touma?" Hikari called out, sneering at him. Touma rolled his eyes and his shoulders, effectively ignoring her until the loud beep rang through the stadium, alerting them to the beginning of their fight.

As she had predicted, immediately Hikari could hear her father and brother's loud screams, telling her to go kick Todoroki's ass.

Hikari ran straight for the red haired boy, her body low to the ground, short blonde hair whipping behind her. Her red eyes were narrowed on him, flicking to check her surroundings every so often as he prepared himself for her onslaught. Touma's quirk was unpredictable, but her explosions would easily melt his ice away. Anything he created and sent flying towards her, so long as she was able to touch it she could explode it, easily overwhelming him. He wasn't a fighter, he had never really wanted to be, so despite how impressed she was that he had made it this far she knew he wouldn't last.

She would win, she would make her parents and older siblings proud. She would show everyone that she was just as good as her parents when they were this age.

But more than that, Hikari Bakugou wanted to prove that she was her own hero. She wasn't just a carbon copy of her father, or some weird combination of her parents. She was her own, with her own techniques and her own solutions to problems. She would win by herself, and prove to the world that she could do it.

Living in her parents' shadows had been hard, but Hikari wouldn't let that stop her. She was on a mission, and she wouldn't let this chance pass her by.