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My senpai

Summary:

14-Year old, Katsuki Bakugo doesn't have it easy being an omega.

He just wants to make it into U.A though that's not easy when omegas aren't viewed to fit well as a hero and having protective parents despite him being able to hold his own.

Though one day something changes.

On his way to school, He crosses path with an older boy who attends u.a on the train saving him from a creep and for the first time Katsuki feels something strange, A pull towards him.

Katsuki never had an interest in finding a mate but now with these strange feelings. He's left trying to ignore it but it seems his new senpai only has eyes for him.

Chapter 1: Boy Meets Boy

Summary:

Katsuki meets a boy on the train and feels a werid connection.

Chapter Text

Katsuki hated taking the train.

It was always packed with not only people but mixed scents from sour omegas to dominate alpha's overpowering a lot of scents and there was a scent you could barely notice in the mix which was most likely a beta as it was a calming faint scent but it was all just overwhelming to the boy's senses.

The only reason he was even on the train in the first place was to get to his school. Bakugo normally would walked to school but lately a lot of omegas had been going missing with being all over the news and not only that to make matters worse but there was a rise in villain's attacks.

So his parents thought it would be best that he took the train to school since it was safer than walking to school alone and not only that but the train station was close so it wouldn't take him long to get to class.

Katsuki didn't know if his parents were stupid or just overprotective either way this whole situation pissed him off.

If it weren't for him and his family's conflicted schedules then they would be driving him to school which made him appreciate the train a little but despite the reasoning he was on the train in the first place, Katsuki still hated it.

The scents, the people, and barely any damn space. He hated it all.

The boy sighed as he rested his forehead against the cold metal like that he had been holding onto since he got on since there wasn't anything else for him to grab onto unfortunately.

“Hey” A raspy voice slurred behind him.

Katsuki's first reaction was to ignore him while hoping that man wasn't addressing him. Times like this Bakugo wished that he brought his earbuds so he could tune out his surroundings and a damn nose plug because the stranger behind him reeked of alcohol and it was still early.

“I'm talking to you, boy” The man sneered as he placed a hand on his shoulder to get the boy's attention. Katsuki's hand twitched in response but he didn't result in using his quirk as much as he wanted to blast this fucker away but he also had to be mindful due to the incident from last time along with his slight issue.

Instead his hand balled into a fist and he sucked in a breath before he spoke. “What?” He asked as he looked over his shoulder to get a look at the stranger who looked to be in about his 50s maybe older though the boy couldn't really tell. “The hell do you want, old man?” If the old hag was here to see him talking to an elder like this then she'd smack him upside the head but then again this man was clearly an alpha so she may have been on his side.. maybe.

Despite this man being older. He had the look and build of an alpha along with the shitty smell that was just as strong as the alcohol making his nose scrunch up a little. It made the boy's head spin a little and the omega in him wanted to submit to this stranger but Katsuki was either too young or hard headed though he couldn't help but wonder if the drunk didn't realize that his scent was pumping out as he instead gripped the pole and shot him a death glare when the old alpha pointed out the obvious.

“You're an omega” The man said with a strange smile curling on his lips.

Unfortunately. Katsuki thought to himself.

“No shit” The boy retorted. It unfortunately was obvious to anyone as he was wearing a black collar to try blend it in with his clothes though the only reason he was wearing it was to protect the scent glands on his neck though the blonde hated wearing this damn thing but it was something his parents insisted that he started wearing after that situation a while back.

The man's smile fell in response to his retort though Katsuki could care less about this stranger's feelings. “That's not how you speak to your elders!” It was hard not to notice the way he slurred as he spoke to Katsuki but the boy couldn't help but scoff in response, The omega would be damned if he respected a drunk.

The boy finally just decided to try and ignore him again since this would be over soon but what the man did next really sparked a fuse in Bakugo when he felt the drunk’s body press against his back.

It took everything in him not to use his quirk or even punch the bastard in the throat but with him being an omega it would bring trouble.

“You know, I could make a good alpha..”

Bakugo's hand balled up into a fist before he reminded himself that he needed to keep his damn record clean.

“Not interested,” Katsuki said quickly.

You think someone would try to help him but unfortunately this was how things were in this society, Alpha's were high ranking and able to get away with alot of things.

Betas were almost in the same boat as omegas but they got more respect than them and they didn't have to deal with the things that omegas and beta were going through putting them in the middle of the hierarchy.

Then there were omegas, the bottom of society and despite how free the world tried to make them look it was the opposite really with a lot of things requiring an alpha mate to do things..while somethings had gotten better it still wasn't enough as there was omegas out there fighting for their rights still.

“Well..I wasn't asking you, I'm sure your family would let me court you. I would be paying them so much they couldn't say no” He said as he grabbed onto his collar and gave it a light tug making the omega's jaw clench. “Why don't you take this off?”

Sadly, This was kind of the norm for omegas and alphas. Families would arrange courtships for the omega in the family to help them find a potential mate usually two children so they could grow up together though the courtship really started when they were of age while this man probably could court the blond it wouldn't really be allowed to start till he was of age and not only that but it would be more than just frowned upon but then again omegas were constantly being bothered by alpha's so it could be why now no was trying to intervene.

Fortunately for Katsuki's family, specifically his mother who was an alpha herself, would most definitely not approve and have this man’s head.

Bakugo's scent quickly soured after being grabbed making it clear how he felt on the whole situation but still put on a brace face and even went as far as to brave his fangs at the older man. “Don't touch me!” He growled.

“Don't ignore me!” The man snapped back. It was clear this alpha wasn't used to being told no either from his supposedly wealthy background or simply because he was alpha.

“There you are!” An unfamiliar voice suddenly made itself known in the crowd.

Suddenly he was pulled by the back of his uniform causing a low growl to slip as he found himself in someone's arms and was hit by a nice scent along with warmth but Katsuki didn't pull away from the stranger who was alpha judging from his scent alone everything in him told him to stay..?.

“I've been looking all over for you!”

Katsuki looked up to see who hopefully was his savior right now and not another creep but looking at his face, He had a feeling that it was the first one as he took in his features.

It was a boy who looked to be about a little older with a face that definitely stood out thanks to his freckled cheeks that made him look quite cute for an alpha along with his fluffy green hair and emerald eyes that looked so bright right now but really what stood out the most to him was his uniform, He was a student at u.a

The Man frowned upon the alpha's arrival and when the young alpha spoke again.

“Is this guy giving you any trouble?” The cute alpha asked as he pressed his cheek against Katsuki's. He was rubbing a bit of his scent onto the omega to make it clear that he was taken and ward off any other alphas who might try him but the blonde's face felt quite hot from this little interaction as he didn't know it what to say for a moment.

Just then announcement came on as they reached their next stop.

“Im sorry..i didn't know he was with you. I should get going” the man seemed to have gotten embarrassed, maybe over the fact that he was caught or he just didn't want to but heads with an aspiring hero but he would soon be getting off the train with a few other people.

“Are you okay?” the boy spoke softly as he looked down at him with a face full of concern for the other male which struck a chord in Katsuki.

He didn't need anyone's fucking pity nor their fucking help.

“I didn't need your fucking help!” He snapped as he pulled himself out of the other's grasp making something inside him feel off..to say the least.

Katsuki chose to ignore it.

The alpha looked a little surprised by his sudden outlash but would give him a soft smile making the boy more annoyed in response. “It looked like you kinda did though” The boy replied as he rubbed his neck.

The young omega scoffed and crossed his arms against his chest. There wasn't anything that the blonde hated more than looking weak, He already was dealing with the shit that sadly came with being an omega so the last thing he needed to do was look weak especially when his goal was so close in reach now.

“Whatever” He grumbled. “I had it under control” He insisted as he looked away only to look back at him when realizing something.

Katsuki could use him to get into u.a if things didn't work out..

“You're a u.a student right?” This question alone made the older boy's eyes light up.

“Iam! It took a lot of me to get here but the work really paid off” He rambled on about his success which didn't interest Katsuki in the slightest. He was clearly an alpha so this bastard had an easier chance of getting into the school for apsiring hereos.

He scoffed cutting midoriya’s rambling to an end though the boy looked a little embarrassed when he realized he was rambling again as his cheeks flushed up a little.

“I'm sorry, I get carried away sometimes” He confessed with an embarrassed chuckle.

“Hard work my ass!” Katsuki said abruptly as he shoved his hands into his pocket and let out a soft huff. “You're an alpha, you get shit handed to you on a fucking sliver plater”

The freckled boy did look a little taken back but surprisingly didn't hold any hard feelings against his comment. “Well believe it or not. I wasn't one of the lucky ones” He sighed as he looked down at his hands only to look up when Katsuki just clicked his tongue in disapproval making it clear that he didn't give a shit about what this alpha had gone through.

“Sure you did” He grumbled. All these alphas did was talk.

His ears perked up when his stop was finally announced, and Katsuki wasted no time getting off the train, having to squeeze his way out.

“wait! Let me walk you home”

Katsuki stopped in his tracks after and whipped his head in the direction that the voice came from and there stood the older teen who wasn't too far from.

Katsuki's lips pursed together. “I can take care of myself” he said as raised his hand only to set off a little explosion.

“T-thats your quirk?!” the teen asked in awe and well Katsuki couldn't help but swell in pride any time his quirk was brought up in one way or another.

“No shit! It's my quirk, "he reported. A little smirk then came onto his face. “Like, I said. I'm able to take care of myself!”

“Your quirk is amazing and I'm sure it could do some damage but after what happened back on the train..”

“I told you!” A spark set off from his hand. “I didn't need your damn help back there!” Katsuki yelled, causing a few heads to turn their way from the people passing by.

The boy's hand twitched as it set off another small explosion trying to give the older boy warning to just back off in which Izuku put his hands up in defense but would continue where he left off.

“I just wouldn't be able to forgive myself if something happened to you and we are going the same way any right?”

Katsuki listened but didn't say anything as he balled his fist up before turning away with him.

“Hurry the fuck up before I leave you behind”

“So you plan on going to u.a someday?” Izuku asked as he walked by his side.

“Tch..not someday, soon very fucking soon” he insisted as he shoved his hands back into his pocket. “I'm going to be the best damn hero out there!” He said proudly with a grin on his face.

“I see” Izuku said quietly and gave the other a gentle smile. “I guess that makes me your senpai then*

Katsuki scoffed. “Like I'm calling you that!”. This boy was still a stranger to him. “Okay okay” Izuku laughed before he continued. “Well I'm Izuku. Izuku midoriya” He introduced himself.

“Oh yeah.. you were in that sports festival right? You go by Deku? What kind of fucking name is that”

“Well I decided to take a spin on it..” He explained though this kid was proving to be quite cold..
“but what is your name?” he asked curiously, trying to change the topic.

Katsuki thought about his question for a moment.

This was an alpha.

Sure he was already risking things by letting him walk with him but seeing how omegas had been going missing lately and while he did seem nice.. Katsuki wasn't that trusting.

“Like hell I'm telling you!” He growled.

Izuku rubbed his neck a little unsure on how to respond to the boy's cold attitude before he finally thought of something.

“How about kacchan then?” He suggested in which the boy shrugged his shoulders in response. “Yeah sure”

“Kacchan it is then!” Izuku smiled a little.

The boys soon walked together in silence until something caught Izuku's eye. It was swaying back and forth and it took him a moment before he realized what it was. It was a keychain of all might's head and well Izuku was a big fan of heroes with all might being his favorite so it was hard for him not to go full fanboy mode.

“You like all might too?!” The older boy exclaimed, making the boy stop in his tracks and whipped his head in his direction. His cheeks were flushed while his ruby red eyes shot daggers at the older boy. “Just tell the whole fucking world why don't you?!” He hissed.

“Ah. Sorry sorry” he mummered. “Im a big fan of all might too!* He beamed in which Katsuki would sigu in response. “I like him just not in your weird ass level now come on before I'm late” he grumbled before he began walking again.

“Right!” Izuku replied and hurried after him.

It wasn't long before the two boys arrived at the school gate which Izuku quickly recognized the building, it was his old middle school. A place in which he didn't have a single good memory of unfortunately.

“You go to aldera junior high? I used to go here as well” Izuku said with a sad smile on his face though Katsuki didn't even notice.

“Yeah? Well I'm not going to be here for long” He insisted.

“Well you can go now” he said as he began to walk ahead only to be stopped by Izuku when he suddenly said.

“Wait!”

“What the fuck do you want now?” He snapped.

“Well I was thinking we could start walking to school together? He only let the question settle in for a moment before quickly adding. “Only if you want to of course!”

Bakugo was quiet for a moment as he thought about it only to give him a simple answer.

“Fine”

Due to omegas going missing recently it was best to travel in pairs of groups as that was what the news recommended and this dork seemed to keep the freaks away and not only that but it probably would be good for him to have connections to people in u.a already.

“Great! So ill- wait I never got your name” Izuku called out to him but the boy was already gone. He had so many questions for him but now wasn't the time as he began to hurry to his school before he was late himself.

Deku placed a hand over his chest to feel his heart that felt like it was going to explode out of his chest. This was just from talking to the boy though he knew exactly what this was and he already felt like the luckiest guy in the world.

He finally found his mate.

Izuku just didn't expect his mate to be so cute! Despite his cold nature. Izuku was just grateful to be one of the lucky ones for once he never thought he'd be so lucky finding a mate that was just for him..

His fated partner.

It truly felt like a blessing.

“Um Deku?”

Izuku looked up from his notebook to see his friend, uraraka standing in front of him. “Are you okay? You've kinda been out of it today”

“Oh yeah.. sorry” he laughed as he quickly shut his notebook. class had just ended so most were heading home since it was the weekend and all but Izuku was lost in his own head this afternoon.

“Do you wanna walk home together?”

“Huh? Oh not today” he said, shaking his head and grabbing his notebook and stuffing it into his bag. “I know we normally walk together but I have some plans for today”

The omega looked a little disappointed upon hearing this. “Well will still grab lunch soon right?” She asked hopeful as there had been something she had been wanting to tell him.

“Of course! I'll see you later” Izuku said before running off leaving his friend in wonder yet concern for why he was in such a hurry.

Katsuki didn't know why he was even doing this.

He had no reason to trust this bastard and yet here he was waiting on him even going as far as to reject his classmates' offers to hangout with them since he didn't have the time well that was his excuse.

“The fuck is taking so damn long” He muttered to himself as he tapped his foot and just as he thought about leaving. He finally showed his face, the freckled boy ran over to him and quickly bowed.

“About time you showed up!” He yelled as he rested his hands on his hips.

“I'm sorry! For taking so long but thank you for waiting” he said as he straightened himself up. “So I got you something to make up for it” Izuku pulled his backpack off then began to dig through it before he found what he was looking for.

“Here! I thought you might like this” he said as he presented it to kacchan.

It was a all might themed trading card but not only that but a special edition one judging from the design itself which Katsuki only knew because well he collected some of the pro hero trading cards and he thought they weren't so bad..it wasn't because he was trying to win an all might card and kept getting everyone else.

“I have two so I thought you might want one” He explained with a slight nervous smile on his face. He had no reason to be nervous now but yet here he was looking like he was in a dangerous situation but relief washed over him when Katsuki took the card from him.

“I'm only taking this because I collect these damn things that's all so don't get any wrong ideas” he said as he looked over the card.

Though Iuku really needed to work better on courting and gifting but he was still new to this and already wanted to impress the omega somehow but the look on Izuku's face held so much joy when the blonde accepted the card.

You think he'd won the damn lottery from how happy he looked. “Im glad you like it” Izuku seemed to be already picking up on Katsuki's odd lingo of accepting gifts..

Katsuki felt odd..to say the least especially seeing this dork look all Happy after accepting the gift it Made him feel all fucking fuzzy.

He hated it.

“Come on! Let's go because i'm not going to wait up on you anymore” The omega blurted suddenly as he started to hurry off in the direction of the train station.

“W-wait!” Izuku cried out before hurrying behind him.

Katsuki took one last glance at the card as he sighed.

Maybe this dork wasn't so bad.

“Im Katsuki Bakugo” the ash blonde said when they got on the train causing Izuku to smile big upon hearing that.

“I guess we should start over huh?” He said as he offered him his hand. “It's a pleasure to meet you, kacchan” it seemed Izuku was going to stick with the nickname he made for him as he was proving to fit it quite well.

“Yeah yeah you too” he said as he shook his hand and the simple action alone made that fuzzy feeling return which caused Katsuki to quickly pull his hand away.

He had a feeling that he knew what this was. He wasn't fucking stupid but being the stubborn omega that he was.

Katsuki chose to try and ignore it.