CW: Omegaverse

Everything most likely started when they first met in their childhood. Their mothers were friends, so of course, they would end up meeting at some point in their lives.

Midoriya could remember that feeling he had, telling him he wanted to stay by Bakugo side. At the time, he was too young to notice that feeling, plus he really liked him, so it wasn't a bother. Although, once he got older, he did wonder if Bakugo was feeling the same way about him, but he never managed to ask him.

"I want to stay with Kacchan forever!" he said one day as they were talking naively about the future. "Will Kacchan stay with me when we grow up?".

"Of course, I'll stay with Izuku forever!"

Midoriya misses those innocent and naive days.

Things started to change a little once Bakugo got his quirk. He had become a little star, everyone eyes put on him, feeding his hope and dreams of becoming a strong hero. Midoriya couldn't help but be from that crowd too, finding him even cooler than before.

"Kacchan will be so strong in the future!" had exclaimed Midoriya one day. "Do you think my quirk will make me as strong as you?"

"Of course Izuku won't be as strong as me," had laughed Bakugo, "but I am sure you will be good enough to fight by my side".

Midoriya was hiding behind the corner of the wall, listening to his parents argue as they believed he was outside.

"Dear please calm down, Izuku is still Izuku, eve-"

"Don't try this, he didn't just have to be quirkless, he also had to be an omega! Why couldn't he just be a beta?! At least it would have been passable"

The harsh words were like knives stabbing deep inside the young man, trying to keep from crying again. He kept listening as his parents were arguing, his mother crying as she was trying her best to defend him. At some point he couldn't take it anymore, going out to try and calm down and forget.

Everything went downhill from here.

Shortly after being assigned as an omega did Midoriya realised that some things were not quite right. Despite how bad Bakugo had gotten towards him after learning both his quirkless-ness and that he was an omega, Midoriya couldn't help but be drawn to him one way or another.

He was getting this strange feeling in him, indicating to him nearly without mistakes when Bakugo was getting close to where he was, even without having heard him before-hand. Bakugo's scent seemed to also be the one dominating anyone else scent, whether he was next to him or farther away in the room.

Those he could somewhat rationalise. After all, he had pretty much grown up with him, of course Bakugo's scent would be the first one he could pick, right? Also, he was so relentless in his bullying, of course Midoriya would be so on edge around him that he'd get hyper-aware of his presence.

Worry started settling in when he realised that with the months going by, he could... feel Bakugo's emotion without him acting on them. His rages were somehow feeling stronger than before, feeling them just as much despite Bakugo hiding them when he needed to.

The only positive from it was when he could catch little bits where Bakugo was feeling positive things near him. It had the power to give him some small wave off happiness just from feeling those, despite not being toward him. Yet, those would often die quickly and annoyance would ruin it, Bakugo turning to him to bother him some more.

It took him a long time to accept it, or to even really understand it, but he knew this wasn't something normal. He had some kind of bond with his childhood friend and it seemed as if he was the only one to have noticed it. Because of that, he tried working on hiding it and calming himself around Bakugo, like this he wouldn't be so mad at him all the time. Doing so did prove to work, somewhat proving to him that Bakugo could indeed feel it too.

He decided to hide it from him, knowing it would only make the alpha hate him even more than before. Yes... and like this Bakugo would be able to find someone better and forget about him...

"Oi, shitty nerd, what is it about going to UA? You know that a useless, quirkless omega could never get in, right?".

He had heard those words so many time before, they were still able to sting him. Yet he didn't falter, despite the intimidating feeling coming from Bakugo, he was standing his ground.

"I can still try, I won't give up!"

Clearly, he had struck a nerve somewhere in the alpha, as his expression got darker, taking a step towards him. Midoriya couldn't help but take a step back, soon meeting the wall behind him. He was going to try and find a way to get out of this situation, but he suddenly felt a finger looping under his black collar, forcing him to look up.

"You should know your place, you'd get killed in an instant," he said harshly, "just give up!"

Midoriya couldn't respond, his throat feeling too tight from the aura Bakugo had, yet he didn't look away, still not giving up.

It earned him a beating, but his determination didn't waver from it.

"You can become a hero"

The words were still resonating in Midoriya's ears, tear falling from his tightly closed eyes. All Might said he could be a hero, All Might was believing he could become a hero just like him.

All the emotions of the day were finally coming out freely, despite hope, happiness and relief being the strongest feeling he had at the moment.

He was attacked and thought he would die, had his hopes crushed not even an hours before, had seen his childhood friend stuck in a dangerous situation and had run without thinking to save him while putting himself in danger again, and now his idol was telling him he could be a hero. It was too much for him in one day, he couldn't keep it in.

He really could do it. He would do it.

He couldn't help but yelp when his back collided with the wall, not expecting to be pushed so harshly against it once he was out of the nurse office to heal his finger. He didn't even need to look up to guess who it was, he should have seen it coming instead of being so lost in his thoughts.

"Kacchan!" he still exclaimed, unsure as to why he had followed him back here after Aizawa test.

He got even more confused when he felt him work to loosen up his tie, making him panic slightly, trying to stop him. "K-Kacchan what are you doing!?".

"Shut it!" he received, Bakugo finally winning against the badly tied tie, opening Midoriya's shirt collar more. "Why aren't you wearing your collar?" he asked, sounding annoyed at this detail.

Midoriya looked surprised that he noticed such a thing, but quickly shook away those thoughts, frowning. "How does it have anything to do with you?! Let me go!" he said, finally managing to get away from Bakugo, seizing back his tie in the same move.

"Nothing to do with me?" repeated Bakugo, as if finding that statement wrong.

All the anger he could feel from the alpha was starting to rub off on him, getting annoyed too. "Yes, it has nothing to do with you! No one here knows and they don't need to know!" he exclaimed, not wanting things to get back like they were before.

"You realised that more than half the class are alphas right!" frowned Bakugo, his tone making Midoriya flinch slightly. Of course, the young man had noticed, but it didn't change his resolution, only the teachers knew about it, a least outside of Bakugo, and he wanted it to stay like this.

"I know! But I can manage, I don't need to be treated differently, and I can protect myself!" he argued back, trying to redo his tie without much success. He tense when he heard small explosions, before sensing that Bakugo was going away "Don't come crying to me if something bad happens to you".

Afterwards, he didn't interact with Bakugo for the day, their argument leaving him slightly anxious that he might just go ahead and tell them. He was quite relieved when it never happened.

Yes, things were going to be alright from now on. He was going to show everyone that he was capable of becoming a hero too.

So I wanted to add some more about the dynamic of the world, as I know other people might be as picky as me when it comes to a/b/o stories.

-Omega are not necessarily treated like utter shit (contrary to many stories), there are still assholes and some stigma from (world setting) history, but it is not exactly the norm either. My story shouldn't contain heavy hate towards omega specifically (despite how Bakugo act in this chapter), if it can reassure some.
-I have my own weird way of playing with the whole faith-mate some have, as I do about bond too, dunno if other do it too, hope the ideas won't come off as too weird and vague when I play with them.
-am not sure if I should tag is as non-traditional a/b/o, as it doesn't stray away that much from the original idea (like my billdip one do).