This Quirk Nonsense by Riaru Takeru (FMAxMHA)

Summary: Bakugo Katsuki didn't quite understand why he felt so wrong about quirks, but he just knew that it was something that should NOT be scientifically possible. Not to mention, the explosions that came out of his hands made him feel slightly sick for no apparent reason. (Ed-reincarnated-as-Katsuki fic)

Link: https://m.fanfiction.net/s/13653289/1/This-Quirk-Nonsense

Word count:9k

Chapters:5

Ch. 1

Something is really, really, fucking wrong, two-year-old Bakugo Katsuki thought in horror as Bakugo Matsaru rubbed his hands together and something just fucking exploded.

Nope. Nu-uh. I'm not dealing with fire hands, he told himself and he growled internally.

"Hey Masaru—"

"I told you to call your dad, DAD, Katsuki!" His demon-like mom yelled from the kitchen. Katsuki naturally flinched at her yelling, cursing her demon-like hearing on top of her strength.

"Okay, dad, what compounds did you have to mix in order to get that kind of reaction? The only thing that I could think of that could do that inside the temperature in your hands are pyrophoric compounds or elements but then you must have gotten some kind of burns on your hands but you don't seem like you're hurt anywhere."

At his son's strange scientific way of trying to approach his ability, Bakugo Matsaru quirked his brow.

"Uhh, Katsuki. This isn't a magic. I've been telling you, right? This is a quirk."

"But that doesn't make sense! People just naturally have different types of unnatural powers that seemingly come from nowhere? How is that even possible?"

Masaru merely thought that his son was a genius who has been reading too many of the ancient texts written over two hundred years ago that said nothing about quirks. He smiled and gingerly pat his son's head.

"Don't worry son, you'll get your quirk soon and you'll see how amazing it is."

Katsuki pouted and frowned, while mumbling something about 'I would rather not have a quirk' until he jolted back as if he realized something important.

"Hey old man, you didn't wash your hands after you did that trick, did you?" the little blonde boy said as he narrowed his eyes at his father.

The father was taken back and he gave a hesitant chuckle. "… no?"

"WHAT THE FUCK!" the child cried out as he tried wiping his hair furiously.

But hearing those words, Bakugo Mitsuki stormed into the living room with a spatula gripped tightly in her hand.

"Katuski…" she drawled dangerously, "what have I said about using those words?" Even with her smile, Bakugo Katsuki could see the purple aura seeping off the demon and he quickly tried to run away.

But he couldn't. Damn his shor—ahem—average-for-his-age legs.

.

Bakugo Katsuki looked at his hands with sick horrification. This shouldn't be happening. He couldn't quite explain it, but this felt so wrong.

He had to make sure that he wasn't just dreaming it—but no, he saw it correctly the first time.

There were explosions coming out of his hands.

And fire resulted from the explosions.

"Wow, Katsuki-kun! What an amazing quirk!" The adults in the daycare center said happily while they frantically tried to put out the fire that resulted from Katsuki's explosions. "Don't worry, our insurance covers quirk-related damage!"

"Kacchan! That's so cool!" A small green-haired boy said with excitement.

But Katsuki couldn't hear them as he looked down at his hands with horror. Without even thinking, he stormed out of the daycare center, away from the gasps of 'where are you going' as he ran all the way to his house, slammed his door shut, screamed into his pillow, and banged his hands against the mattress.

"OF ALL THE QUIRKS I COULD HAVE WHY THIS ONE!"

.

"Kacchan! Your quirk is so cool! You're gonna be such a cool hero!"

Katsuki raised his brow at the overexcited little green-haired boy who was not only a neighbor but also a fellow daycare 'friend.' As a child who felt that it was dumb that he was going to such a place in the first place, Katsuki didn't care about learning the other children's names or 'play' with them

"What are you talking about? Heroes?"

At the blonde's deadpan look, the green-haired boy gave a horrified, incredulous yell.

"You… don't know what heroes are?! They're always on TV fighting the bad guys!"

Ah, then there was a reason why Katsuki didn't know what these 'heroes' are then. Rather than sitting in front of the television (a machine that he was sure was wrong in some way again—they didn't have colored pictures before), he went to read books in order to make sense of this quirk business that didn't follow science.

"I don't watch TV often. What's a hero?" the blonde asked.

Then the little green boy went on a whole speech about heroes and quirks, Katsuki hit himself on his head for asking such a question.

.

He really didn't want to do this.

He really didn't.

But four boys looming over one small green haired kid and trying to hurt him was NOT something Katsuki could allow.

So he quickly showed how insignificant these little children were without even using his quirk.

The young green haired boy who was still full of tears sniffled as he saw Katsuki holding a hand for him to grab.

"K-kacchan! I knew it! You're going to be a great hero someday!" The boy said with only slight excitement.

"I told you, I don't want to be a hero." The blonde clicked his tongue and started his walk back home and the green haired boy followed behind him. "My quirk is annoying."

But instead of trying to argue why Katsuki's quirk is so amazing as well as why heroes are amazing, the little green haired boy just quieted down and slowed his pace silently behind the blonde.

"I… I want to be a hero. I want to help protect people."

"Then why don't you?"

The green haired boy stopped the shuffling of his feet.

"I don't have a quirk…" he said softly and tears streamed out of his face even more.

Seeing that his companion stopped walking, Katsuki turned backwards and looked at the crying boy with a frown.

"You don't have a quirk? So what?"

The words made the young four year old quirkless boy look up in surprise.

"They say I can't be a hero."

"Who's they even? Does it even matter what they say? I would rather be quirkless than have to have this stupid quirk. So I'm gonna train. I'm gonna train so that I don't have to use this stupid quirk like a crutch. Truth knows how much people rely on their quirks."

"Wha—" The green haired boy looked in slight awe at the blonde who put his hands in his pockets defiantly. "But… quirks are awesome…" he said with some sadness.

"Yeah, yeah, but you don't need them to be a hero. So if you want to be a hero, train your body to become better than other people who use their quirks. Don't use the excuse that you're quirkless to just sit and do nothing. Ah wait—" Katsuki paused abruptly. "Hey what's your name again?"

"You don't know my name?! But we've been friends for two years, Kacchan!" The green haired boy looked a little hurt.

"We are friends?!" The blonde looked incredulously but quieted down after seeing that the boy looked like he was about to burst into tears again. "Yeah, sorry. I just didn't care about learning names. So what is it?"

"I-I'm Midoriya Izuku!" the green haired boy said as he wiped away his remaining tears on his cheeks.

"Alright. But don't call me Ka-chan. Even though you're using a nickname, I'm not a mom, you know."

Izuku's ears became a bit red.

"But then… what do I call you?" Izuku asked aloud "Katsuki? Or since you're older than me… Nii-chan?" He asked with a wide grin.

And all of a sudden, Katsuki felt like someone stabbed him through his heart as he heard those words. Those words shouldn't have such a profound effect on him, but it did.

And he could hear someone's soft, kind voice echoing through his mind.

'Nii-chan?'

Link: https://m.fanfiction.net/s/13653289/1/This-Quirk-Nonsense