Welcome, Heroes! Rio is here with the first chapter of a little thing I've been working on for the past week; My first Boku no Hero Academia fanfic, or My Hero Academia for the English readers. It's been a series that I've been interested in for a good while now and, thanks in part of a few authors from a discord that I recently joined, I decided to throw my hat in the ring and try something other than Persona or RWBY. Not gonna lie, I really enjoyed writing this fic, and I hope you guys will enjoy it as well. The story itself takes place after the current chapter of the manga, so spoilers are going to pop up. This will also have a couple establish couples as well, so keep that in mind. With that said, enjoy part 1 of my contribution to the My Hero Academia community and I will see you all at the end of the chapter.

My Hero Academia: UA Halloween Bash

Chapter 1: The Plan

"Ugh… I'm soo bored! Why is it that the one time I finish my homework early and have loads of free time is when everyone else is off doing who knows what?!" Mina whined while slumping on the kitchen table while Kirishima gave her a sympathetic pat on the back while his other hand held a cup of warm hot chocolate.

"Relax, Mina, it's not that bad. I mean, not everyone's too busy to hang out. I'm here, aren't I?" Kirishima asked with a teasing grin, getting a weak one in return.

"I know, and I'm happy you're here, Eijiro, but I just want the rest of us to have fun as a huge group every once in a while. Is that too much to ask?" Mina sighed while looking at the relatively empty lobby with sorrow. "I mean, seriously, Tsuyu's gone out to the aquarium with Tokoyami, Toru and Ojiro, Bakugo took Kaminari and Sero to the field for a training session, Jiro's over at some music store, Sato's off to a bakery right now with Shoji and freaking Aoyama of all people, Yaomomo convinced Tenya and Todoroki to go with her on some sort of seminar, Koji locked himself in his room again to take care of his rabbit, Midori and Ochako just got back from training and are resting in the lobby like the adorable cinnamon rolls they are, and there is no way in hell am I desperate enough to ask Mineta to hang out. It's not fair…!"

Kirishima let off a small hum as he listened to his horn buddy's rant while taking a sip from his mug, silently agreeing with her words. It was a cool weekend afternoon at UA, towards the end of October, to be exact, and nearly everyone was off doing their own things at the moment. The hardening hero looked over at the lobby where, indeed, Izuku and Ochako were passed out on top of each other on the couch, most likely tired from another early morning training session. He shook his head with an amused smile as he stared at the, admittedly, adorable pair, before turning back to Mina, who was now pouting up a storm and grumbling about having no one to hang out with.

"Hey, if you want to hang out with everyone so much, why don't we just plan a day for all of us to just relax and spend the day together. Like a party or something?" He suggested, causing Mina to sit up straight and look at him in surprise.

"A party? That sounds like a good idea, but what would be the reason? And where would we have it? The dorms?" Mina asked, looking quite interested in the prospect.

"…Actually, the dorms sounds like a good place for a party. We need Aizawa-sensei's permission for it, but it shouldn't be too hard. As for why…" Kirishima trailed off, scratching his cheeks to figure out a good reason for a party before looking at a nearby calendar, a toothy smile on his face when he noticed a certain date on it. "I know! How about a Halloween party? We could dress up in awesome costumes, eat loads of candy, and watch cheesy horror movies all night since it's a weekend!"

"…A Halloween party in the dorms? Seriously?" Mina repeated, a smile on her face that was getting bigger with each passing second. "Dude, you're a freaking genius! It'll be so freaking amazing! We can dress up as whatever we want and have a super awesome time! It'll be perfect chance to wind down after all the hectic crap we've been dealing with!"

"Hectic is right. I honestly don't think that any other class has been dealing with as much stuff as we've been. The USJ incident, the training camp, rescuing Bakugo and our internships… We've been through so much I'm surprised most of us are even alive at this point. We need time to decompress and Halloween is the perfect chance for it as far as I can see." Kirishima said, his face grimacing as he recalled the various incidents that his class has been dealing with since they practically started class.

"Yeah… We have been through a lot…" Mina said softly as she recalled the incidents as well, along with the state of the hard-skinned teen before her in one of the more recent events. "…You know, you're right. We definitely need this. Not just so we can hang out with everyone, but so everyone can finally take a load off and finally relax after so long! We've been busting our butts and risking our lives to become Pro Heroes, so we definitely deserve a break every once in a while, and Halloween is the perfect time for it!"

"Now you're talking!" Kirishima grinned as he raised his arm up, prompting Mina to grin back in return before raising her own hand and high-fived her horn buddy. "We definitely need to let everyone know about this! As soon as all the others are back, lets convince Yaomomo and Iida to hold a dorm meeting in the lobby to explain our idea! I'm sure everyone will be thrilled for it!"

"*yaaawn…* Thrilled for what…?"

The harden and acid duo blinked a couple times at the sound of the tired voice, and turned their heads to see a sleepy Izuku approaching them with Ochako drowsily following close by as if she was sleep walking, much to their surprise.

"Oh, sorry, man. Didn't mean to wake you two. Were we being too loud?" Kirishima apologized with Mina looking at them guiltily.

"It's fine. We needed to wake up anyways. I promised Uraraka that I would get her some mochi today after doing so well with her training today, so it's all good," Izuku assured with a smile while Ochako began moaning in delight at the promise of her favorite food.

"Mmmmm…. Moooochi…" She muttered sleepily, a small trail of drool dripping from her mouth as she began daydreaming, causing the three teens to laugh at her adorable actions.

"Haha, guess you can't keep her waiting then, Midori. You two go and grab some mochi, but be sure to come back as soon as you get it! We got an announcement we wanna make for everyone!" Mina said cheerfully, her words sparking Izuku's curiosity and waking Ochako up a bit, but was still a little drowsy.

"Uh, ok. We'll be back as soon as we can. C'mon, Uraraka, let's go get ready," Izuku said as he gently tugged the sleepy girl with him to their respective rooms.

"Mmkay, Deku…" She responded softly as she rubbed her eyes and yawned, disappearing into the hall with Izuku while Kirishima and Mina watched them go with no small amount of amusement.

"Those two really are cute together, huh?" Mina chirped while tuning to her horn buddy with a massive grin.

"No kidding," Kirishima grinned back before hopping off his chair. "Welp, I'm gonna go upstairs and let the guys who're still here know about the meeting and let Bakugo, Kaminari and Sero know when they get here. You got the guys that are out?"

"No worries. Thankfully most of them are in a group, so I don't have to make that many calls," Mina assured with a thumbs up before pulling out her phone excitedly. "Ooh, this is gonna be sweet! Everyone's gonna be super stoked when we tell them about this! There's no way anyone's gonna say to a Halloween party!"

-A few hours later-

"Huh? A Halloween party? Why do you want us to do something as stupid as that?" Bakugo questioned rudely as soon as he heard the request from Kirishima, who couldn't help but grimace at the rebuttal.

It wasn't just him, either. There were quite a few other classmates in the lobby who didn't look too interested in having a Halloween party, which was bringing his mood down considerably. The only reason why it didn't go down at all was the fact that there were still plenty of others who were more than happy to participate in a Halloween party, including Toru, Kaminari, Ochako, and even Momo, oddly enough.

Mineta, of course, was into the idea, but it was for a pretty obvious reason for all of them, so his opinion didn't really matter at the moment.

"Bakugo, there is no reason to be rude! Show your classmate some respect! He did orchestrate this meeting, after all!" Tenya chided the explosive teen, who turned away grumbling, before turning to Kirishima with a curious expression. "Although I do admit that this feels quite sudden, Kirishima. I am not dismissing your suggestion in the slightest, but is there a particular reason why you wish for us to participate in such festivities?"

"It's so we can relax and chill! Everyone's been working their butts off becoming heroes and all the incidents we've been dealing with hasn't hade that any easier! We need a day to relax and be the teenagers we're supposed to be, and Halloween is the perfect day for that!" Mina spoke up from beside Kirishima, ready and willing to defend the idea the two came up with.

"I can understand that, but a Halloween party of all things? Sounds a little childish, don't you think?" Jiro said with a raised eyebrow, disinterested in the idea herself.

"Not necessarily. I've seen plenty of older people looking forward to Halloween so they could dress up however they want and get free candy. I even heard some of our upperclassmen saying they couldn't wait for Halloween so they could dress in costumes outside of their hero outfits." Ojiro chimed in.

"I saw we go for it! I wanna see the girls dress up in the sexiest costumes out there! Like a hot witch! Or a sexy nurse! Oh! Oh! maybe even a super hot shrine maiden! C'mon, guys, let's have a-"

*bam!*

"I suggest you keep such costume ideas to yourself, Mineta…" Momo said sharply after slamming the tiny pervert to the ground with a staff she just made.

"I think a Halloween party would be a great idea! I never been to one before, so I'm sure it'll be super fun!" Ochako chimed in excitedly before turning to Izuku with stars in her eyes. "What do you think, Deku? Wouldn't a party at the dorms be super awesome!?"

"Ah… I'm not against it. It could be fun. I haven't really dressed up for Halloween since I was a kid, but I think I can find a good costume to wear if we're doing the party." Izuku said bashfully, blushing slightly at the excited look at the gravity girl's eyes.

"Well I think it's freaking stupid! You guys can do the party if you want, but I'm not going! I got better things to do than to dress up in a dumb costume with a bunch of losers…" Bakugo growled with his arms crossed before turning away to his room, making both Kirishima and Mina upset with his insistent refusal, when Kaminari and Sero turned to each other with wicked grins.

"Hah, I bet he doesn't want to be in the party because he can't find a good costume to wear!" The lightning teen teased, his words causing Bakugo to freeze his movements.

"Yeah, I can believe that. Probably embarrassed to show up because of that," The tape teen laughed before Bakugo turning his head to Kaminari and Sero with a headed glare.

"The hell did you just say, you idiots!" Bakugo roared as he stomped over to the pair, who still had mischievous grins on their faces.

"I'm just saying that you don't really look like a guy who's all that creative when it comes to costumes outside of your hero one! Hell, if you did show up for the party, I'd bet you would come in wearing your hero costume instead of actually going out and getting a different one!" Kaminari teased with a shrug, getting a nod of agreement from Sero.

"Yeah, man. You're a lot of things; smart, strong, hotheaded, but I doubt being artistically creative is one of them," Sero chimed in, making Bakugo even more furious.

"Like hell I'd do that! I can find a costume that is much better than whatever stupid idea you two can come up with!" Bakugo exclaimed, clenching a fist at the pair while the other students stepped back to watch the chaos unfold.

"Um… Should we be stopping this?" Tokoyami muttered while turning to Tsuyu, who was looking at the impending fight with interest.

"Not yet. I think this is starting to get interesting, ribbit…" Tsuyu shook her head when she noticed Kaminari pull out his wallet.

"Then how about you put your money where your mouth is then!" Kaminari exclaimed as he pulled a few bills out of his wallet. "Twenty-five hundred says that I'll have a costume that'll wow everyone and blow whatever you're gonna wear out of the water!"

"Oh! Me too! I already have a costume idea, and I bet it'll be better than anything that Bakugo can come up with!" Sero spoke up with some money in his hands.

"You're on!" Bakugo exclaimed immediately, inadvertently creating an explosion from his hands out of habit while some of the others looked on in interest.

"Hey! If we're having a costume contest, let me join in too!" Toru spoke up, waving an invisible hand that had a few bills on it.

"And me as well! I possess an idea for a costume that I'm sure everyone would love!" Aoyama chimed in, and with that the teens began delving into a conversation on who would wear the best costume, making Mina and Kirishima sweatdrop at all the noise.

"Um… This isn't really what I hand in mind, but I guess now everyone's on board." Kirishima muttered while scratching the back of his neck.

"Yup, now we just need to get Aizawa-Sensei to approve of our idea so we can get to preparing the party." Mina said cheerfully.

"I'm fine with it. Just don't ruin the dorm too much and have a few of the teachers chaperone so that none of you don't go overboard or try and bring in something you shouldn't for the party…"

"GYAH!" The teens screamed in surprise before turning to the hall, where their homeroom teacher was leaning on a nearby wall with All Might smiling behind him.

"Aizawa, sir! All Might! Wh-When did you guys show up?!" Izuku questioned with wide eyes.

"Just before the meeting started. I saw you kids heading over here and I was curious as to what you all were planning. All Might here was with me at the time and decided to tag along," Aizawa said while pointing his thumb to the retired hero before continuing. "As I was saying, you kids have my ok to have a Halloween party, but you are responsible for the prep and clean up. Not only that, but we, along with Present Mic and Midnight, will be chaperoning you all to make sure none of you do something stupid during the party, as I said earlier. Other than that, go nuts. Now if you excuse me, I have papers to grade and a nap to take."

"Good luck with your party, students, and have fun with the costume contest! I'm sure you will all look spectacular!" All Might said with a double thumbs up before following his fellow instructor out of the room while the students remained silent for a moment.

"…Well that happened. Looks like we have approval now," Shoto said somewhat unnecessarily with a shrug, making everyone excited once more.

"Sweet! This is gonna be awesome! We got a just over a week to prep this party and get the costumes we want, so if we're gonna do this, we're gonna do this big and we're gonna do this loud! Who's with me!?" Toru cheered while jumping excitedly, if her floating clothes are any indication, with the rest of the class following suit.

"Hey, I can help with the music. I don't think I'll be participating in the contest, but I can provide the music if that's fine." Jiro said with a smile.

"I can help set up the decorations." Shoji offered with a few of his limbs having thumbs up.

"Leave the treats to me! I've been making Halloween candy for the kids in my neighborhood for years, so it wouldn't be a problem." Sato suggested with a wide smile.

"I will be in charge of obtaining the decorations! If anyone wishes to suggest what spooky items we should have for the party, inform me so I may list them down!" Tenya offered with a raised hand.

"Oooh this is so exciting! This is gonna be my first big Halloween party and I can't wait!" Ochako squealed while shaking Izuku by the shoulder in excitement.

"Haha, I know. This sounds like it's going to be fun!" Izuku laughed, honestly looking forward to the party himself.

As the students continued to discuss on what to do and what to wear for the party, Kirishima and Mina simply watched over them with massive smiles on their faces, happy that their plan was going full swing. The then turned to each other, pride evident in their eyes, and raised their hands simultaneously for a loud high-five, grinning widely the entire time.

"This is gonna be the coolest party ever! And we even got a costume contest going! We didn't even think of that!" Mina cheered.

"Yup! Now all we need to do is make the preparations, grab ourselves some awesome costumes, and we're good to go!" Kirishima exclaimed back before turning his attention to his fellow students with a shout of excitement. "Alright, everyone, let's do our best to make this party a night to remember! Everyone's gonna do their part and everyone's gotta wear a super awesome costume, even if you're not going to be in the contest! We're gonna have a whole lot of fun on Halloween, I just know it! Are you with me everyone! Let's go!

"PLUS ULTRA!" Everyone shouted, sans the usually silent or unwilling such as Koda and Bakugo, but no one missed the excited glint in their eyes. Everyone was truly on board with the party, and they were going to make it the best party hey will ever have. As everyone began discussing about what kind of decorations to get and who will join the costume contest, Aizawa and All Might were leaning on a nearby wall, listening to their excited students with small smiles on their faces, or smirks in Aizawa's case.

"Those kids are being really loud right now," The Erasure Hero muttered while shaking his head.

"They are simply excited for what is about to come, Aizawa. Let them have it. They truly deserve it, after all," The former hero chided gently with a small chuckle, "Though I'll be honest, I wasn't expecting you to agree to the party so easily. And in the dorm no less."

"It's like you said, these kids deserve it. With all that's happened, they need something to do to let off some steam and relax, or else they'll burn out, which is dangerous in our line of work. Even us Heroes need a break every now and again, something that you had trouble with when you were active…" Aizawa said with a leveled look at his fellow instructor, who was looking back at him sheepishly.

"…Yes, I suppose you have a point," All Might admitted with a nervous smile before a look a pride formed on his face, one that was aimed toward his colleague, "But still, I'm happy that you are allowing the children this chance, Aizawa. You truly are a wonderful teacher to them. Do you have any idea what you wish to wear for the party, by the way?"

"I'm just going to wear a pair of fake cat ears and call it good. I'm not really one for Halloween that much, so I'm going to keep it as simple as possible. You, I'm sure, will go all out on it, as will Present Mic. Midnight, on the other hand…" Aizawa trailed off, a look of distain on his face that was soon mirrored by All Might.

"…Let's make sure that she doesn't wear anything too inappropriate for the party. We don't want a repeat of her hero debut again."

"Agreed."

Author's notes:

And Part 1 is done! I hope it was an enjoyable start for this short story. This is honestly the first time in a while I've written a story with this short of length, and I have to say… It's kinda refreshing not having to write 10k-20k chapters every week like before. The rest of the story is done as well, and will be uploaded within the next couple days, with the final chapter being on Halloween. Again, I would like to thank the guys over at the discord I'm in, the IzuOcha discord to be exact, for letting me know about their little event, and the fanfic author Soulfulbard, who's RWBY story Game On became the inspiration for this fic, primarily its own Halloween portion. Seriously, the guys over at the discord I'm in are awesome people and I am happy to be a part of their community. They rock.

Next chapter will be uploaded tomorrow, and it will be focusing on the students getting their costumes and working on the dorm for the party. There will be plenty of interactions and even a cameo from a certain pair of characters towards the end of the next chapter. Look forward to it. Until then, thank you all so much for reading my fics, everyone, and I will see you all tomorrow for part 2.

Take care, and remember. Go Beyond… Plus Ultra!