My Hero Academia rightfully belongs to Kōhei Horikoshi. The only thing that belongs to me is my character.

Thank you guys for the love you gave to the first chapter. I'm glad you enjoyed it. Im enjoying writing this a lot and I hope I don't disappoint.

Happy reading! Or actually, now that I came back to this note, it's more like good luck? This chapter didn't turn out to be really that happy.

(I apologize in advance for any grammar mistakes)

Warnings for this chapter: there's description of (using AO3's tags) Endeavor's A plus Parenting and slight physical abuse so read with caution if it triggers you.

I hope it's enjoyable nonetheless.

.

"NATSUO-NII?"

The sudden voice startled him. It was late in the afternoon and he was doing his homework in his room. It was Friday so Fuyumi and Tōya were finishing their session with their tutor, their mother was preparing dinner - because she truly enjoyed doing it, even though the bastard is always saying that they have people for it - and the younger twins were supposed to be in their shared room, as they didn't like to leave it when their father is home. They would just stay in their little space, reading, playing and studying what their older siblings were teaching them at the time.

But apparently he got it wrong because when he turned his head towards his room's doorway, his four year old sister was standing there, hand rubbing her eyes sleepily.

"What is it, Yu-chan?" he asked, beckoning her closer so she could sit beside him.

Yuna looked . . . pale, when he takes a good look at her. Her skin is clammy and sweaty but that was a given as it was quite hot. What was weird is that she seemed to be shivering and she had a thick sweater on.

"I 'on't feel s'good," she mumbled, leaning her head on his shoulder and if Natsuo hadn't been playing close attention, he might've not understood what she said.

His palm went immediately to her forehead but he couldn't feel anything out of the ordinary. She did seem a bit warmer than usual but it was still summer so the house itself was warm. "Do you feel anything? Does your stomach hurt?"

His little sister shook her head, "No, but I feel . . ." Her face scrunched into a frown, "weird."

Natsuo frowned as well. Weird? "How weird, Yuna?"

"Nothing hurts," she said, closing her eyes and he felt immediate relief with that, "But . . . I don't know. It's sunny and hot today but I feel cold and hot too."

The word left her lips like a whisper and he froze at the same time as her eyes widened, like she hadn't realized what she just said until now. She felt cold. Yuna and Shōto turned four a couple of months ago.

She was sweating and slightly warm but she felt cold.

Could it be—

No, this wasn't good. He didn't know how to deal with Quirks. He didn't know what it was like to develop one and when he was born, by the time he learned what Quirks even were, Tōya and Fuyumi were already creating flames and spawning snow into existence!

And today of all days.

This was really, really bad.

I need to get her to mom, he thought after a while, She'll know what to do.

"Was Shōto okay?"

Just calm down, Natsuo. You can do this.

Yuna nodded her head, still looking like she reached some sort of unknown conclusion. It weirded Natsuo out how sometimes she'd seem older than she actually was, "Shō was asleep when I left the room and he didn't seem any different."

"Let's check on him either way."

Because if it is what he's thinking and he doesn't have any proper evidence but he has a feeling, then his brother would also be in the same state. Twins usually developed at the same time, as it was what happened with Fuyumi and Tōya.

And if it is what he thought . . .

Why did it have to happen on the day that their father was home?

Nevertheless, Natsuo helped his little sister up and pulled her with him, carefully and as quietly as he possibly could, out of his room. The hallway was quiet and there was no one in sight but to reach the youngest twins' room, which was in another wing of the house, they'd have to pass in front of their parents' room, where he was at the moment.

Breathe in.

They passed it as quietly as they could successfully and made their way to their destination. And when he opened the door, Natsuo wasn't surprised to find his younger brother in the same situation, shivering in his bed and looking quite pale as well. Yuna left his side in a second to stumble towards her twin and she pulled him up, making Shōto lean against her but she wasn't steady on her feet so Natsuo quickly reached the twins' side and held each of them close to his sides.

He needed to do something but he didn't know what.

"Let's take you to mom," he said, repeating what he had thought to himself before because he wasn't qualified or had any way to handle this and their mom would know what to do.

It didn't take long to get to the kitchen. Their mother was standing by the turned on stove, humming some song that he didn't recognize and when they stepped inside, her gray eyes locked immediately on their forms and concern and worry was the only thing that Natsuo could see on her face.

"Natsuo? What happened?" she asked, rushing to their side, eyes completely trained on the twins, who were leaning heavily against the older boy, "Yuna, Shōto. Does something hurt? You're both so pale."

"I didn't know what to do, mom," Natsuo said, when his mother's eyes met his, "Yuna came to my room and she looked so bad and . . . She was shivering but sweating and cold and . . . Then Shōto looked the same and . . ."

"Natsuo, breathe," his mother told him, cold hand on his shoulder, gentle and comforting and he slowly controlled his breathing before he finished his train of thought.

"I think . . . I think it could be their Quirks."

As soon as the words left his lips, his mother's face changed. There was still concern and worry for her children, of course but there was something else. Something familiar. Something that he could easily tell, after so many years living with his asshole of a father, to be fear.

"Okay," he heard his mother whisper quietly and her eyes were squeezed shut for a second before they reopened to focus on his little brother and sister, "Let's go into the courtyard, okay? Because if it is their Quirks, we can't let them use them inside the house. Not when . . ."

Your father is home, is what she hesitated to say but Natsuo heard it as clearly as if she had uttered it out loud.

Seriously, why did it have to happen when their father was home?

"Are Tōya and Fuyumi still with their tutor?" his mother asked him, as they make their way outside, Yuna and Shōto snuggled in her arms.

"They were finishing up so . . ."

It was like they had been summoned because the moment the answer was leaving his lips, Natsuo's older brother and sister appeared in his line of vision, their notebooks and things in their arms.

Which were completely discarded to the floor when they noticed that something wasn't quite right.

"What's wrong?" the question left Tōya's mouth immediately when his eyes found them and he rushed forward to inspect his younger siblings, "Mom?"

"We need to take them outside. We . . . We can't keep them inside if they're going to . . ."

Their mother didn't need to finish because, in that weird twin sync that Natsuo always found quite strange, his older siblings were nodding and soon they were moving against, in the direction of the courtyard.

Let's hope the bastard stays in his room, Natsuo thought to himself.

But with their family, hope and good things was never something that came easily for them so he wasn't that surprised when a while later, their father showed up and the terror, the absolute fear, rose back up like it had never left in the first place.

.

WARM.

I woke up from my nap and that's all I felt. Tingly warmth over my right arm, my whole right side and it left me sweating bullets through the shirt I was wearing and I thought for a second that maybe it was just our body temperature and the fact that it was hot outside. There was a fan in our room but Shōto and I had fell asleep next to each other so being a little warm didn't seem strange to me. I stood up and left my brother sleeping and then it was cold too. So cold that it left me shivering.

I didn't, couldn't, comphreend what was happening.

It was warm and cold at the same time, like my body couldn't decide what temperature it wanted. It left me sweating and shivering and confused because what was happening?

I couldn't think. My mind was all foggy and there was no clear thought in my head. I felt dizzy, almost couldn't keep my eyes open and stumbled when I tried to walk forward, to find my siblings or Mother. Mother would know what to do. She always knows what to do.

I managed to find my way to Natsuo's room instead as it was closest than the kitchen and leaned against my older brother's cool body as he tried to figure out what was wrong.

I tried to explain what I was feeling that I was feeling hot and cold at the same time and that I didn't know—

And then a piece fell into place and I realized it.

Fear and terror came first and I nearly drowned in it. If this is what I think is and its happening to me too, what was going to happen? Was he gonna take us both? Was my brother still going to have his Quirk? Oh god what if I took it from him? What if that bullshit about the butterfly effect or whatever happened and I robbed my twin from his dream?

No, stop, I thought furiously to myself. Nothing was clear. I just need to get to Shōto before . . . before he does and takes him away from me, from us because he's home and we're no match to him, neither are our older siblings or our Mother.

Mother.

She's going to—

No. Stop stop stop.

Shōto. I need to get to my brother. My brother who was in his room, alone and probably going through this too. I left him alone.

I need to go back to his side.

Natsuo seemed to have the same idea because not long after that, we were moving towards where I knew the room I shared my twin was. We passed our parents' room in complete silence and when the large figure of our father didn't storm out of it, I marked it as a mission complete.

And found my brother, my twin brother, in the very same state as me, swearing and shivering with the covers that were once covering him on the floor.

I was at his side in a second, nearly tripping over my own feet but I managed to prevent the meeting between my face and the floor.

"Shō," I said, shaking him and pulling up so he could sit. His head found my right shoulder and I winced at how cold his right cheek was, "C'mon, wake up."

"'m 'wake," he responded sleepily and even though his face was turned away, I knew his eyes were still closed. He shivered when I touched his back with my left hand, "'s cold."

"I know, I'm sorry."

I managed to pull him onto his feet but if Natsuo hadn't reached out to grab us, we would've faceplanted onto the floor. My older brother was saying something but I couldn't quite hear him. It was like I was underwater. My eyes closed for a couple of seconds, leaning against him and my left hand on Shōto's right one and when I opened them again, we were in the kitchen and Mother was kneeling in front of us.

At least I think it was Mother. It was a white blur and I didn't have the strength to focus.

My hands were tingling and uncomfortable but I didn't release my twin's hand.

I want this to stop.

Mother was also saying things that I didn't catch and then we were moving again and I just want to be under cold water and scorching hot water at the same time. Tōya and Fuyumi joined us not too long after from what I could tell were white and small red blurs and seconds later, we were outside and it burned.

The sun, the air was hot. So, so hot. A whine left my lips before I snuggled back to Mother's side where it was cold but a good cold. It felt good.

"Yuna," cold hands found my face and I opened my eyes to find the blurred figure of my sister. At least I think it her. It wasn't Natsuo. Yup, long hair. Definitely Fuyumi, "You need to let go of Mother."

But I didn't want to. Why did I have to? Mother was cold, a gentle and kind type of cold, and I was too hot. I didn't like feeling like this. I don't want to feel like this.

A warm hand touched my right shoulder, pulling me away from the gentle cold and it's way too hot hot hot—

My arm burned and it hurt. The tingly warm feeling was long gone, replaced by actual burning and holy shit it hurts hurts—

I opened my teary eyes to blue and for a second I thought that Tōya had used his Quirk but when I completely focused, I realized that there wasn't any blue on my brother's hands like when he'd show us his flames.

Instead, there's small familiar blue flames covering my right arm and they burned.

I could feel my flesh burning underneath it cell by cell and it was painful. It hurt so bad that it brought tears to my eyes. I didn't know how to make them go away, I realized suddenly with wide eyes and looked around for my Mother because she'd help me, right? She'd know what to do. She always does.

But . . . why did Mother have that scared look on her face? Why would she be afraid? He wasn't here. It was just us, her children so why was she looking so terrified? And . . . why is she looking at me like that?

And then it hit me. Shōto.

Where's Shōto?

I looked past Tōya, who was standing in from of me and I hadn't even realized it, and found Mother and Natsuo standing a bit closer to the opened archway that let here and then more to my right, I found my twin standing a few feet away from me, with Fuyumi at his side and slowly, I looked away from his eyes to focus on the frost that was covering his right arm and the ice that had spawned around his right foot and the flickering orange on his left.

I didn't take his Quirk, was the first thing that popped into my head and relief hit me, followed immediately by dread when I fully realized exactly was this means.

Father is going to take him away.

Father was going to take Shōto away from me, from us, his family.

No. No, I can't let that happen.

I won't let that happen.

The blue seemed to grow and my left side felt itchy, cold—

"What is all this?"

At once, I froze, my eyes wide and the blue flickered away. Tōya was completely frozen too, eyes wide and I could see almost hear Fuyumi's flinch along with Mother's, who, when I go to look, has pulled Natsuo close to her and stepped aside to reveal him.

Sometimes I couldn't believe that my father was actually this man. This man who looked around the courtyard, a deep frown on his face and at his family, at the people he was supposed to love, with absolute disinterest.

Sometimes I wonder if I did someone horribly wrong to have been born as this man's daughter.

This horrible and disgusting man that was supposed to be the Number Two Hero.

And I couldn't do anything but watch as those turquoise eyes that I was glad to not have inherited focused on Shōto, on my twin, and on the flames and ice and shiver at the grin that spread over his face and the glint on his eyes.

My masterpiece, I knew he was thinking.

"Shōto," my father spoke, his booming voice resonating in the courtyard and unable to help myself, I flinched back and watched as he greedily approached my frozen twin, who was wrapped in our older sister's arms and trembling in what I knew to be fear, "Finally. Finally it happened. My masterpiece."

"Enji—" Mother tried to speak but he all but shushed her, his eyes still completely and utterly trained on my brother's form.

And in one swift moment that I couldn't even follow, he was next to my brother grabbed Shōto's arm which was no longer encased in flames and all but pulled him away from Fuyumi, who couldn't do anything but stare in fear.

No.

"Your training begins immediately," Father said, grin still on his face and moving towards the exist.

No no no.

"No, Dad! Let me go!"

I watched my twin struggle against the harsh hold, the way he was dragged and I saw red.

No no no no nono—

"No!"

Fear, anger spiked and ice crystallized beneath my left foot and moved towards them and at once, Father pushed Shōto out the way (he fell to his knees but he was okay, he was fine) and flames came alive.

The ice didn't stand a chance, it melted the moment it came into contact with the orange and red but I didn't care about that. I moved out of Tōya's hold, I didn't even notice he had grabbed me—

"Yuna!" Was that Mother? I couldn't tell.

— and reached Shōto's side and when he collided with me, relief burst in my chest as I held my brother close to me. He was shaking, I noticed and I held him even closer, lifting my head to look at him.

And found an even bigger grin on his face that made Shōto tremble even more.

"Both of them," he said, almost to himself and the satisfaction in his voice made me want to vomit.

He took a step forward—

Shōto flinched and in a second, I was in front of him—

And Tōya was suddenly there, between us and the tall from of Endeavor, his fists tightly curled and I could see the steam rising out of them.

"You're not gonna take them," our older brother proclaimed but his body was trembling as he stood facing the source of all our nightmares.

And slowly, quietly, Fuyumi stepped up too, form shaking but she still stood firm in front of us.

The man made a sound with his tongue, displeasure clear on his face and took another step forward—

"Enji, don't!" That's definitely Mother and she came forward, Natsuo still with her, and held a shaking hand out in front of her, her back to all of us, "T-They're children! They're just children! Just calm down and—"

It all happened so fast. One moment, Mother was standing in front of us and the next, she was on the floor, trembling.

"Mother!" my older siblings cried in unison and Shōto whimpered, hand curling tightly in my shirt.

"Out of the way," the man ordered, eyes on Tōya and Fuyumi, who were still standing between us. Natsuo had rushed to Mother's side the moment she was thrown to the side.

"No," my older brother stated firmly and there was a burst of blue erupting from his arms, heading straight towards him, "You're no hero! You're a monster! We're your kids, not your punching bags!"

Who countered immediately with his own flames, orange, red and blue clashing violently before dispersing.

"If you hadn't been so useless, so weak," our father spat, eyes narrowing into a glare that pierced Tōya's identical ones, "You would've been in their place instead. You would be the one to surpass All Might but no, a failure is what you are. You and the rest of your siblings. But the two of them," his eyes moved towards us and I curled my arms even tighter around Shōto, "They will go where none of you could! They will turn into the masterpieces I will train them to be and take down that damn fool out of his first place! They'll be the heroes who will defeat All Might once and for all!"

I couldn't take it anymore. He was going to kill Tōya at this rate, kill all of them and take Shōto and I and Mother—

Mother would—

The screech of a kettle.

No.

I needed to do something. What's the point of me knowing all of this was gonna happen when I can't do anything to stop it? Was I doomed to fail from the beginning?

Was I a fool, naive enough to even think, to believe that I could change my family's fate?

Was I stupid to think I could save my family when I don't have any power to go against him?

I remember that when I first realized where exactly I had been reborn, I promised myself that I would do right by my family, by my siblings and by my mother. I wouldn't allow their suffering to keep going and that they'd be happy, be a real family.

Ah ha. What an absolute joke that was.

I can't do anything to help them. To help any of them.

So, I'll do the right thing. I'll do the right thing by my brother, who doesn't deserve to go through what is expecting him.

"I'll go!"

I used to wonder why was I born into this world, this particular family.

I never really understood it. I couldn't remember how I was like Before but I couldn't have been anything special. Probably just a normal person with a normal family, maybe with younger siblings and maybe even a cat or a dog. My parents would've been kind and loving but when it was needed they'd be strict. Or maybe they weren't and I was the worst person alive.

I never got to remember and to be quite frank, I was fine with that.

But why this world? Why this family?

And why, out of all my memories, I kept the ones that involve this universe?

Why me?

But then, I'd look, watch, the other being next to me, the one person I was linked to in a way that I couldn't even understand and the reason of why didn't matter anymore.

I don't know why I came into this world but I knew it was to be someone to this little person, who was drolling all over his pillow. I came into this world to be his sister, his twin, his other half, so he wouldn't be alone. In the future, he'd find friends and true companions he'd trust his life to and he'd be a great hero.

But for now, he'd have me and the rest of our family. My role was to stay by his side now. Watch over him, love him and keeping him safe. Make sure that he didn't remain alone the rest of his childhood, torn apart from his siblings and Mother, scarred for life.

Maybe I was here to make sure nothing like that happened.

I was here to make a difference, to change.

So that's what I'll do.

On the other side of the world, in a branch of a small tree in a park, a butterfly flaps its wings and flies off.

Oh, look! This chapter isn't nearly 10k words. I'm honestly surprised with myself.

But all kidding aside, I had some troubles with this chapter. I didn't know how I wanted it to go. I knew I wanted them to develop their Quirks in it but I wasn't sure what to do so hopefully it's alright.

Since there's no description (to my knowledge) of what happened when Shōto developed his Quirk, I knew I had to create something and my imagination was blank for a very long time. I didn't know what I wanted to happen but I knew that I wanted Enji to find out and cause havoc while doing it which would cause Yuna to instinctively act to protect her brother. It was a series of events that I wanted to happen.

Natsuo's POV was something . . . different for me. I wanted to write something for him, but I didn't know what so I had him act in the beginning of the development of the twins' Quirks. I don't know if I kept him in character, I tried to but since he's still pretty much a kid here, I knew he'd be pretty helpless in helping his siblings but he'd do his best to try to help.

And now, Yuna's Quirk. One thing I knew that I wanted her to have was the same but not really same same flames as Tōya's. It was the base I had. I wanted her to have the blue flames but not being as strong as his. I wanted her main affinity to be ice but her right arm (just her arm and shoulder) being able to emit fire. They're not strong flames and since her body's genetic is to sustain ice rather than fire, they do harm her arm whenever she uses them which is what I tried to describe when she first uses them.

And I think that's it. What comes next will most likely be a chapter with time skips that go through the aftermath of the decision in this chapter and the training basically and the rest of their childhood maybe? I'll see if it won't end up too long. I know some people are not fans of long chapters.

Thank you for reading and I apologize for the long note at the end. I have an habit to write long ones.

Once again, I hope you enjoyed it! Until next time!