Nothing except the OCs mostly don't belong to me and many abilities will be taken from JJK.

Should I put a warning or make this a crossover fic?

Chapter One: Diminuendo-Crescendo

In one breath, she was there; in another, she was not. The sudden darkness surrounding her threw her off course – this wasn't the street she had been walking.

"W-what?" She whispered, staring around herself as a piercing headache formed; she covered her mouth to muffle her screams, but it was useless.

Everything hurt, even moving caused the feeling of fire up her veins and she just wanted to sleep

There was a light in front of her - the "light at the end of the tunnel." The quote flashed briefly in her mind as she tried to go towards it, towards the light. "Is this what motivates people...to go towards the light?" I breathed in, and the air felt harsh against my throat; it burned as it went down.

There was the sound of glass breaking; the shattering noises felt like knives were cutting into the inside of my ear.

I covered them with my hands and fell to my knees. "Please stop! Make it stop!" I shouted, closing my eyes tightly as tears streamed down my face. I felt so stupid, so much pain.

My breath caught in my throat as I felt sharp winds and soft cotton fill my vision. My eyesight was blurry; all I could see ahead of me was a blob of brown. It wasn't the first time I had gone around with bad vision, but to not even be able to see past my nose was an experience I would not like to repeat. Ever.

I sighed through my nose and wondered what exactly was happening; there was the relief of the pain being gone, but it had spiked my adrenaline and now I couldn't seem to shake the hyper-focus.

Everything felt oddly sharp and blurry at the same time; the world didn't feel as real as it used to - it felt fake.

This world feels so fake

I stare up at pale pudgy baby hands, hands that I am controlling, hands that are mine.

I – I don't even have this pale skin! I opened and closed my fists, wanting to do… something, but there was fear now; I could feel it building in my chest, and I could hear my heartbeat, like I had just run a marathon.

Fingers, an adult's fingers grabbed mine gently, and I heard a sound – it was… comforting, calming.

Is this... my new mother? Is this even reincarnation or is it rebirth? My mind went through the many possibilities that this could be before settling on reincarnation.

The thought both comforted and terrified me; it also made me feel a familiar hollow feeling - it was maddening, this new life.

One of a very loving family, my family wasn't loving before, father was a drunk alcoholic and mother never wanted us

My mother went back to college and took care of the house most of the time; she was too tired to do much else other then sneer.

Father tended to be more... violent.

I felt the need to weep.

My brother was probably the person I was around the most; we weren't very close in public, even going as far as insulting each other. But when it came to the privacy of our home, we did many things together. Not everything, and we didn't always get along or want the same thing, but we managed, and I am so glad we did.

I am not ashamed to say I cried that night, not ashamed, just slightly embarrassed. Not that anyone would blame me; I'm a baby after all.

Everything was dull; a baby apparently needed to have a schedule, so days just blurred together in an endless stream of eat, sleep, cry and shut – not necessarily in that order.

As I grew older, I found that I had a brother who was only a few months younger than me; this was a bit weird, but I thought I had heard of something similar before, though I wasn't sure if the term was offensive or not.

I was only around a year and a few months old when I heard the word "prodigy." I'm so glad I took those Japanese lessons! But it was for my brother that I felt the sudden need to get their attention, I was selfish and attention seeking and so very horrible.

I started crawling, walking and running - it was a bit hard for my baby's muscles, but I managed it and the look of pride on my big brother's face was better than my parent's gushing.

It just felt so... right.

I was happy in this new life...happier than I was in my previous one, but maybe I was seeing it through childlike lenses; I was never good at taking them off myself.

I had to be shown or I would never understand, never sympathize. I was called a sociopath so many times and a masochist, but that's only with food and those few cuts I made on my thumb by accident and just continued to do it. I don't even know why I did that; maybe I was feeling exceptionally depressed that day.

I've never experienced depression, nor did I really understand it aside from feelings of emptiness and sadness.

I looked down at my shoulder and turned around to see my brother with a blank smile on his face. It wasn't intimidating, per se, but it was weird. Then again, babies aren't supposed to have blank smiles, are they? They're usually happy or sad; occasionally, they might be angry.

I turned and looked at the boy who had grabbed onto me as if I were a stuffed toy. "Hello," he said in English. My breath caught in my throat. Who are you? The picture of my brother and me, us together, loving each other like siblings should.

They shattered like glass and turned into crusty dust

"My name is Xylo," he said so casually, and my thoughts of family started flooding back, putting themselves together. "Nakamura?" I asked cautiously; their grip tightened, and that was all the confirmation I needed.

I felt something in my chest as I gripped onto the cutest clothes he was wearing. "Xylo...?" I smiled up at him. "I guess we get another chance, huh?" I grinned at his shocked look; it was so hard to actually shock him these days - a real annoyance, if you asked me.

The shock of having my little sister– brother?– back wore off in the coming days as our relationship continued to improve; but I felt as if I wasn't doing enough to help it.

Whenever we did anything, it was because I suggested it and he went along; it wasn't the relationship I wanted.

It feels selfish saying that, but I just don't want her changing herself, following others and maybe I am still a bit mad about the whole pretending to hate me thing that happened...it wasn't nice.

We were just fine ignoring each other, but suddenly she started hitting me. It was kind of horrible, but Aster had never been a good person, had she?

Neither of us was truly good, were we? Is that why we ended up here? No, this place isn't hell or purgatory or whatever it's called.

It's nice and weird and maybe even a mild punishment to see these new parents instead of our own to see their loving gazes and soft touched instead of disgusted glared and harsh hits.

I didn't like our new parents much they were infinitely better and my reason was juvenile but I just couldn't help but dislike them; we didn't get a lot of freedom, and freedom was important to me

It's suspicious, but again, I'm just a baby, so there's really nothing I can do about it other than maybe cry...but I've already established myself differently and will continue to do so as much as possible.

I heard the flash of a camera and looked up to see Father holding one, snapping pictures of me with my brother's hair on my lap, as I stroked her-his head; it was awfully soft.

I actually hope she doesn't turn it purple this time around...her-his lavender hair was nice, but I prefer white; it's even better on her.

My hand clenched around a patch of hair, and he opened his eyes questioningly. But fear faded from his face as I shook my head before continuing with what I was doing. It was a bit boring, but my brother seemed to enjoy it.

He's always been a bit like a cat in that regard, though he does get a bit hyper at times and can be a little weird, especially when he's sleep-deprived.

There was a pair of arms around me and I felt myself being picked up soon followed by my brother as we were carried down to the kitchen. "Ah, feeding time," I breathed out sharply through my nose.

Reaching forward, I demanded to be closer to my brother; my father huffed and kicked my chair closer to my brother's, so that they were practically touching. We were seated, and I leaned carefully against the chair, still not trusting it enough to sit in it, even though it had never failed me before.

I just don't trust him.

We had eaten and were sitting back down when my dad started to get up from the table. Before he could leave the room, I stopped him and With the most expectant gaze I could muster in this little baby's eyes, I spoke: "Read." He blinked, looked at me quizzically, and said, "Do you want me to read you something?" I nodded, and he began to read.

I shook my head and pointed at myself, saying "You want me to learn how to read?" He tried again and I nodded; he looked confused for a second before shrugging. "I guess it's normal? You can talk, so why not?" His hands were around me once more before we ended up in the living room, where I was finally taught to read Japanese.

In our previous life, my brother had already learned how to read Japanese; an annoyance, really - I was the older one, so I should be the better one, always. That's how it's always been, after all - it's the status quo, right?

I shook my head to rid it of such thoughts. I wasn't wrong; I couldn't be wrong. I was... not really that important anymore, was I? My hands clenched tightly as I started over, determined to do better this time.

We were both born in the same year after all.

I have to be important; that's all I am, isn't it? That's all I was...

There was a giant feeling of panic before it was squashed; I would just have to become important again, wouldn't I?

A vague thought flashed to the forefront of my mind as I pondered on what to be –politician maybe– what if I wasn't someone important... what if I was normal...?

Who would I be...?

Non of these questions have answers.

No, I don't have to be anyone else. I don't have to be anyone but me. I–I smile to myself, convincingly. I'll be magnificent.

As I read and research the world, time passes and I grow another year older; my sister– brother join me on these adventures, and we soon discover shinobi, opening a new path.

To become the strongest shinobi, there are also risks; my little brother will never join without me, so that means he'll be in danger. But if we don't join, we'll be just as likely to die from some sort of unlucky streak.

"It's decided," we read the words written on the paper in front of us, shinobi—those who act in stealth.