Prologue: Had Saved Me

The slight sloshing sound that reverberated around me was one that I had heard endlessly since my consciousness had started to awaken. A firm almost gelatinous liquid engulfed my form, illuminated by dim green lights as people beyond the glass of my tank inspected me with fervor. The odd sense of calm filtered through my being as I stared back.

As they had found me interesting, I had begun to understand and observe them as well, finding more than I had expected.

For example, every ten minutes a black-haired female with soft features would walk up to the tank and observe me with a worried look. At first, I had determined that she was worried about me retaliating, however, one time I had been able to glance at her notepad as she turned away, memorizing its contents before coming to an understanding that she had been checking my vitals constantly. Worrying over the fluctuations that occurred every few minutes.

Another was a tired, grey-haired man who would make sure nutrients were placed within the liquid that was keeping me alive, allowing me to survive longer as they ran tests. Unlike the female, he was a monster in my eyes, willingly putting in a little more or fewer nutrients than necessary to give more data to the other researchers. Willingly putting me into harm's way, not once worrying over his actions.

There were many of them, people that came and go throughout the day. None of them were remarkable, not a single one of them caught my attention as vividly as those two. Except for one.

Blonde hair was done up in a braid that hangs limply over his shoulder, a set of cold, calculating emerald eyes that watched me with every passing moment of the day. His striking purple clothing separated him from those around him wearing white lab coats as he paced between his tank and another within the room.

Unlike the others, he had spoken to me. Told me of the world beyond my glass cage. Not because he felt sympathy, but because he wanted to see how I would react, he desired to see if I would try to escape.

I felt my head throb as my eyes unfocused, as my vision once more became clear, felt tiredness begin to take root in my mind. Allowing myself to drift off to sleep.

My consciousness returned once more as lights flashed outside of my tank. A distant rumbling shook the entire room before a blast off to the right sent a door careening to the opposite side of the room. I felt my mind snap into activity as I looked to the direction the blast came from, a white-haired man entering my vision, blue eyes looking around wildly as he dragged a small girl behind him.

I noticed the man stop with a start and look towards the tank beside me as the girl spoke. The man himself begrudgingly nodded along with her words as he shattered the tank and retrieved an exact copy of the girl from within the tank. He was to move away with the two before the girl stopped before my tank. Staring at me in wonder as she reached out and placed a small, stubby hand against the glass.

"Dad... He looks like you."

I stared back at her, those baby blue eyes had widened as she stared at me. The man had glanced at me in confusion before shaking his head and raising a weird item towards the glass of my tank. He pulled a trigger and blasted the tank open, catching me before I could hit the ground, holding me tightly as he spoke heavily.

"Baby-doll. We need to mo-"

The area shook heavily once more, explosions rocking the facility. I watched the girl stumble as the ground cracked beneath her, I felt the man go rigid in fear, I, however, unlike the female clone that they had saved, was awake and healthy, I was able to move and so I did. My hands shot forward and grasped the girls' wrists tightly, holding her up before kicking downwards at the man to signal him to move.

Once more I found myself staring at the girl as she stared back with tears in her eyes, scared. I nodded to her with a small smile as I felt the man run beneath us, carrying us out of the facility and into the snow towards a car. She shakily nodded back before the man had placed all three of us into the car and drove off as fast as he could.

I gazed softly out of the window, ignoring the tight grip of the girl as she held my hand. The sky was so blue, clouds shifting gently through the air as I stared at them, a feeling of excitement welling up in my chest as I ignored the sounds of the other person that had been saved awakening in confusion.

We were free.

I felt my body teeter as a nine-year-old impacted against me. I felt myself stumble a few steps, yet right itself weakly as arms wrapped around me tightly. Off to the side, the man chuckled as I stared off into the snowy expanse around the cabin we had arrived at so long ago. It was beautiful, not the disgusting white of the facility, but a stunning, cold, and encompassing landscape that I couldn't help but stare at.

"Kiana, be careful. He's like your sister, they've been in one place for so long, unable to do anything. Their bodies are weak."

I shook my head and gently tapped the arms around me signaling for Kiana to let go, which she did after a few reluctant moments. I nodded in thanks and turned back to where the other Kiana sat watching us with confusion, it had been a month, and settling in had taken not much time as the man had expected.

He had been slowly easing K-423 and myself, SA-1, into our new lives which had been a good pace, apart from one simple fact. We had no names. He hadn't referred to us in ways other than 'them or they' which often confused Kiana due to her not understanding the fact that we hadn't been 'born with names' like her.

She didn't know, of course, K-423 hadn't been conscious enough to comprehend that she wasn't naturally born like Kiana, a fact I didn't desire to correct her on as she lacked memories, meaning she could build up a normal life based on the man and Kiana's interactions with her. It also helped that the man had claimed that I was the eldest, claiming I had been taken away due to health issues to explain why Kiana had never met me before.

All of it was an excuse to explain why I looked a year older than both K-423 and Kiana, being taller and a little more developed. Nevertheless, it had worked and I couldn't help but play along as Kiana skipped over to K-423 and sat down beside her, hugging against her as she hummed a tune.

It was adorable.

One year. Kiana, K-423, and I had shared a birthday. Kiana and K-423 were ten years old as of December 7th while I myself had become eleven. It had been a joyous day, Kiana was running around excited for me as Siegfried, our father, gifted me my first set of guns.

He told me about the training I would go through, the training every Kaslana went through to learn the Kata of the family and to uptake the Oath. I accepted, truthfully, I would never have declined, he had saved my life and given me an idea of what family was. If I could protect that family with the strength he would give me, I would take the chances any day.

That was why I didn't complain after we had eaten when he took me out into the snow and made me shoot the gray pistols in my hands. Allowing my body to adjust to the recoil with every shot as we practiced. It had been the first time I felt myself genuinely smile as he watched me with a soft look.

I think he understood that no matter how much I loved them, I had been awake long enough to know that we weren't a real family before he saved both K-423 and me, but to me, that single moment, shooting a gun into the distant snowy tundra had been the first spark, that first realization that he was family.

My body screamed in pain as I twisted around a strike from my father. Dodging one of his strikes narrowly as the pistols in his hands fired off. No matter how much time had passed, it was still a near-impossible task for me to fight Siegfried. I had hit a wall in my strength, it wasn't minuscule, but the last two years had been slow.

Apart from the fact that he had been training K-423 and Kiana alongside myself, I had just grown stagnant after turning thirteen, the other two however were excelling, Kiana having a natural strength that was astounding for a twelve-year-old while K-423 had been learning how to utilize the Kaslana families Kata to the point of actually hitting Siegfried.

I wasn't jealous though, I knew that they'd be strong and I was happy. I truly didn't like hurting people, the feeling of impacts against other people reverberating through my body filled me with a sense of disgust.

Shaking my head clear of my thoughts, I ducked beneath a shot from him and spun away, raising my guns towards his face before he lashed out with a kick, sending me flying into a large pile of snow as he laughed. It was that cliche anime laugh that the villains would let off as they stood over the downed hero.

I could feel a small snort leave my throat before I froze. A scream echoed through the area as a large explosion in the nearby forest rumbled. By the time I was up, Siegfried had begun running towards where Kiana and K-423 were supposed to be playing, the forest.

When we reached the scorched clearing, I felt my eyes widening as my heart froze. Kiana was safe, guarded by a wall of white, black and, orange spears that cut her off from what was truly wrong. K-423 stood weakly on her feet, arm outstretched as she stared at the torn apart remains of a Honkai Beast, the same spears littering its corpse as she breathed heavily.

"Baby-doll, what's wrong?"

I felt my blood freeze in my veins as I unconsciously raised my pistol and shot at a spear that formed right in Siegfried's face as he spoke, I watched K-423 stiffly, almost unwillingly turn her head towards the man and speak with venom.

"You vile thing. First, you assist in stripping me of my power and now you confront me as if we are familiar?"

I stepped back at the pure anger that took over K-423's face as she pushed herself up and glared, I heard the intake of air from Siegfried and looked at him from the corner of my eyes. He was surprised, meaning he had no idea what was happening. I looked back to K-423 as her eyes flashed gold and she snarled, portals ripping through the air as spears shot forward.

I didn't understand it if I were, to be honest. That feeling of weightlessness as screams tore through the forest. I stared at Siegfried confused as he shouted, Kiana, screaming off to the side while I gazed towards K-423 who, despite still having those golden eyes, stared at me with muted horror, tears welling up in her once hate-filled eyes.

I finally burdened my suddenly weak body to look down at myself, looking with interest as blood soaked into my shirt and stained the snow below. I mutely felt the arms holding me tighten and lift me up as Siegfried turned and ran.

It seemed I had moved without thinking, taking the spears into my own body instead of letting them hit Siegfried. Odd, had I grown to love that man so much that my mind would make me move to save him without any desire of self-preservation?

I felt my mind blink into unconsciousness as reality caught up with me.

When I awoke again, I was staring weakly around a sterile room. A hospital, the last place I'd ever like to be after what happened so long ago. I heard a small snore as something snuggled its head onto the bed I was inhabiting, my eyes looking down at the sleeping head of Kiana that laid atop the bed while she sat on a chair that was pulled far too close.

I shook my head with a smile and looked at Siegfried, despite sleeping he looked tired, black rings had formed around his eyes due to sleeplessness and his clean-shaven face had been covered with thick stubble.

What caught my attention however was the movement from near the window. I watched as K-423 watched the dark sky, moonlight shining down over her as her sad eyes gazed at the sky. She turned her head as I sat up, the sheets rustling, her eyes widening as she moved from her spot and was at my side, helping me sit.

Her eyes glowed ominously, the golden hues scanning me as I moved, she was worried. I nodded weakly to her as she allowed me to sit straight. We sat in silence for a few moments before she looked down, not meeting my eyes as she shook. She spoke, voice barely a whisper, lacking any of the excitement she once had as I could smell the tang of salt in the air.

"I'm sorry..."

Fragile. That was how K-423 sounded as she trembled. I found myself grasping her hand, ignoring her as she tried to flinch away from me, she was scared for me, just as she was scared for herself. She didn't understand where that moment in the forest had stemmed from. The vile hatred she had spewed nor the attack on their father. I wouldn't allow her to deal with that alone, so I clenched her hand tightly and smiled.

"That wasn't you. You don't need to apologize."

She gazed at me incredulously before getting her teeth and tearing her hand away, I felt the head laying at my side turn, Kiana awake, listening while her eyes were closed.

"It wasn't me. But, it could easily make me do it again. I can't. I won't risk it... I have to leave."

The sound of wood creaking was ignored as Siegfried took in a small breath, almost akin to one that someone would take when they were asleep, but I could tell he was angered, awake just as Kiana had become.

"No."

I spoke gently as I pushed myself up and off of the bed, my legs giving way due to lack of use, K-423's eyes filling with fear as she moved and caught me before I could hit the ground. That was good, cause I doubted that I could even walk. My arms wrapped around my younger sister with as much strength as I could.

Sky blue meeting gold as I smiled at her softly. I could feel every tremble in her body, she wanted to get away from me, worried that I would again be hurt by her, but I wouldn't let her.

"You... Aren't going anywhere but back home with us."

I pulled her head into the crook of my neck as she struggled with her words.

"That thing. It won't have you. I won't allow it, you're my sister, just as Kiana is yours and Siegfried is our father."

I pulled back, watching her eyes flicker between grief and confusion, feeling my smile grow that little bit wider as I ruffled her hair.

"We're your family and no weird possession thing will take you from us."

K-423 shook her head weekly, tears staining her cheeks as she closed her eyes.

When they had opened once more, the gold had faded into a soft blue.

"Sirin, get up! This training is necessary for you to maintain control."

I watched as, K-423, now named Sirin push herself up from the snow weakly. Ever since that day, Siegfried had given us our names as reminders of what we had done, Sirin for saving Kiana and realizing that her home was here, he had named her after someone he said he had failed to save, and myself for being willing to die for someone I loved.

Sirin spoke with conviction, her eyes flashing gold as she stood on both legs and readied herself to fight. It had been four years, I myself turning seventeen and my sisters turning sixteen, Siegfried had arranged for our birthday to be a lot earlier as we were being sent to a place called Nagazora in Japan and we'd need to have official certificates that matched properly.

I would be in the eleventh grade, a second-year at whatever high school we were sent to. My sisters would be in tenth grade, first years under me.

Siegfried had upped our training drastically, I began to learn how to wield Greatswords while he was teaching Kiana strategy and how to use Lances. Sirin was being taught how to filter Honkai Energy over online calls by some weird scientist that he had contacted from some group called Aether Enthusiast or some junk like that, Siegfried himself physically training her so she'd need not rely on her powers.

"Sieghart!"

I grunted in acknowledgment and shot forward, blocking a strike from Sirin, redirecting the Void Lance she had fired off into the snow beside me as I guarded Siegfried. Sieghart had been the name that he had given me. I remember it clearly when he said that I had been his Heart, the thing that helped him focus on the fact that Sirin wasn't a monster when I had been in the hospital, the thing that had saved our family. As such, Sieghart Kaslana had finally been named, the older brother of Sirin Kaslana and Kiana Kaslana.

I felt a small stinging sensation in the corners of my eyes as I blocked another strike from Sirin, smiling with a wide grin as I gripped the hilt of my greatsword tightly, prepared to fight back.

"MAKE SURE TO CALL US!"

I blocked my ears as Kiana screamed from beside me, waving at Siegfried as we walked into the Airport, Sirin walked alongside us quietly, not trusting her voice as she glanced back at our father sadly. No matter how cold she acted from time to time, there was no doubt that she loved him.

I myself merely threw a backward wave at the man who raised the three of us, biting down on my trembling lip as I carried our bags and stared forward.

The plane headed for Nagazora City, Japan had touched down and we were headed to the terminal.

We were leaving behind a simple Cabin in the Snow to finally experience the world.

I... Would miss Dad.

AN: I do not own Honkai Impact 3rd, this story is merely a deviation from the base story that is owned by MiHoYo.

I honestly don't know whether I will continue this, I have a story mapped out, but I just wanted to at least post the initial chapter before deciding if I should work on this story. This says a lot since this is my first story ever, so it might not be as good as I expect it to be.