Reborn in another world as the God-Emperor's daughter by Mallador9000 (Warhammer 40k)

Summary:An otaku is summoned and trained by the Emperor himself to save the universe from the gods of chaos and all other threats. She attempts to do so by changing the Imperium for the better. Can she do it? Or will humanity tear itself apart before the xenos and heretics even get to them? Overpowered OC. Future crossovers. Will change rating to M in the future.

Link: https://m.fanfiction.net/s/13207688/1/Reborn-in-another-world-as-the-God-Emperor-s-daughter?__cf_chl_tk=jjn9p4KiWJouYJDwDdT_QANgzIMSVJG8BZWivS3nYUQ-1648892037-0-gaNycGzNCaU

Word count:123k

Chapters:14

Chapter 1: No Choice

Mal had never done anything to really piss anyone off, nor had she ever been very misfortunate.

So why? Just why had she been run over by a speeding truck whose driver completely ignored the red light? Just what had she done to deserve this?

Mal was just another orphan, a loner who lived on her own without friends, distracting herself with the popular fictions of her time. Her dark purple eyes paired with her jet black hair and unusually pale skin did not help her case.

Yes, she had never done community service in her life. Yes, she never paid any attention to those homeless people on the streets who were in need of her money.

But this shouldn't have been enough to make karma to send a speeding truck at her right?

Fate couldn't be that cruel right?

Unfortunately, it was, and the worst part of it was that she wouldn't be missed. Her grumpy landlady who visited her only with the intent to acquire payment would ignore her death at best, although she would probably be rather glad without the financially challenged youth who always paid her rent late.

Mal truly led a lonely life.

However, this was about to change.

Who would have thought that her life would only turn around when she was dead?

Present Time: Unknown Location

Mal's eyes suddenly opened, revealing dark amethyst irises, shining in surprise.

Looking around her, she saw nothing, only an endless sea of white. In fact, she had no idea how she was standing right now, as the floor seemed completely transparent.

"Where the hell am I?"

These were the thoughts that passed through her mind at the time, her brain barely able to accept the existence of the area around her.

Looking down, she found herself wearing the most luxurious and flamboyant clothing she had ever witnessed. These were clothes which would probably cost multiple thousands of dollars to purchase in her world. These clothes wrapped around her body comfortably, soft to a ridiculous degree. It could be equated to the embrace of an angel.

Mal's eyes widened in pleasant surprise as her lips curved into a satisfied grin. This was just too good to be true wasn't it? She was never a girl who was obsessed with fashion, but that didn't mean she wouldn't appreciate beautiful clothes. She was a cosplayer after all, although buying costumes with her limited funds was challenging.

Mal would have never dreamed in her past life of wearing something nearly as luxurious as the clothes on her body.

The outfit could only be described as gothic lolita, giving off the appearance of the daughter of an ancient nobleman.

However, instead of the regular black, the dress was mostly gold, the decorative ribbon in the front a dark red. A large dark gold ribbon in her black hair, which flowed freely from her head, going halfway down her back.

Soon after the shock from her cloths passed, Mal also noticed another change that was made to her, one much more fundamental than a simple changing of clothes.

In her old world, the girl was severely malnourished thanks to her uncaring attitude towards her body. To save money, she ate a meal a day, which usually consisted of cup ramen, which could be consumed quickly and efficiently.

This led to the result of a skinny, bony body unfitting of a lady, a body that was silently ridiculed by many people she came across.

There was even that time where a child at the grocery store began to cry after thinking that Mal was a walking skeleton, something the mother halfheartedly apologized for.

However, looking at her sleeved arms, Mal realized that the limbs which used to be almost devoid of flesh were now being covered by a generous layer of fat and muscle, not too thick nor too skinny.

Feeling the rest of her body, the girl noticed the same thing. Her body was perfectly healthy, almost perfect in a way. To Mal, there were now no imperfections on her.

"W-why do I have the body of a supermodel?"

That thought was not too inaccurate.

Many girls in Mal's old would have killed for a body like hers while many boys would have killed to date someone like her.

Her chest, which used to be so small, were now at a reasonable size, easily apparent, but not large enough to truly hinder anything.

Even without seeing her face, Mal could already tell that she was beautiful. So beautiful in fact, that it hardly seemed real.

Thinking back to the incident with the speeding truck, and her waking in this strange land, Mal suddenly realized something interesting.

"Isn't this just like the plot of every single Isekai anime ever?"

Yes, it was simply too cliche. So cliche in fact, that Mal should have recognized it in an instant. She had been run over by a truck after all. That should have been a gigantic hint.

A normal girl would have been confused, even hysterical at this point, but for Mal, who had never truly been normal, nor wanting to go back to her old word for any reason, it wasn't anything to be panicking about.

Smiling slightly, Mal thought,

"This could actually be a great opportunity. If it really is like an Isekai anime, then I could be reincarnated in another world, and actually find happiness there."

However, a voice behind her suddenly disrupted Mal's thoughts, leaving her wary and wide-eyed.

It was a rich, powerful voice, filled with a strange, perhaps even warm, kindness.

The voice belonged clearly to a male, a middle-aged one at that.

"I'm sorry, but that might not be possible."

Turning around, Mal sought to uncover the stranger's identity, maybe even getting some answers.

However, the only scene behind her was the endless white, not showing the owner of the voice.

"Who are you?"

A confused Mal asked this, not realizing that the entity had read her mind.

Suddenly, the form of a man appeared before her, his voice much louder than it was before. One second there was nothing, and the next, there just… was.

"Are you satisfied now?"

Instead of reassuring the weary Mal, the sight of the man left her wide-eyed again, the sheer amount of shock holding off any questions she might have had to ask.

"W-w-wha? What are you doing here?!"

Those were the only words Mal could get out in this situation, as she finally realized who the man before her was.

Reasonably long black hair grew on the head of a gigantic man, easily towering over Mal. He was a literal giant, the sheer size of him able to put a fully grown grizzly bear to shame.

A golden halo over his head, the giant wore blinding full body gold armor inscribed with more decorations and symbols she could count, beautiful and detailed statuettes of golden eagles attached to his shoulder plates.

A green laurel, similar to the ones used by ancient Roman kings, sat upon his relatively large head, akin to a crown.

All of those aspects were impactful to Mal, leaving her jaw lowered to the floor in awe. She could literally feel the waves of energy coming from the man, so much of it in fact, that it was visible to the naked eye in the form of defined, golden waves.

However, all of that paled in comparison to the realization of the man's identity, something Mal instantly recognized with her first glance upon him.

This was why she asked the question.

After all, why would the God Emperor of Mankind, the ruler of a million worlds, one of the strongest characters from Warhammer 40,000 be talking to her right now? To him, she must have been an insignificant mortal, barely worthy of attention.

She was completely ignoring the fact that the God Emperor was real, as her brain did not have the time to process that right now.

The Emperor simply smiled, the good-natured expression on his ridiculously handsome face bringing forth a feeling in Mal that she did not recognize.

In that same kind voice, he answered,

"It is quite simple my child. I believe that I am in need of your assistance."

At those words, a thousand thoughts raced through Mal's brain, none of them good.

"No no no no no! What do I do?! I don't anything to do with the 40k universe! If he does something like reincarnate me there, then what the hell do I do?!"

The girl's expression had twisted into one of utmost fear, those purple orbs of hers overflowing with the emotion.

Everyone knew that the 40k universe was something to be admired from a distance. Even the most loyal of fans would never dream of being reborn there, not even as a space marine.

After all, who would want to live in a universe where everyone and everything was constantly fighting each other twenty-four seven? If the chaos daemons don't get you then you'll just be purged by the inquisitors for being a heretic. There was no such thing as "good" in 40k, only survival and war.

The Emperor, realizing this, attempted to calm Mal down.

"This must look so very daunting to you right now my child."

Mal froze.

"However, I chose you for this because I know that you are the only one who can save my dying empire. You possess boundless potential, more than you would believe."

Mal's next words came in a garbled mess as she took that in, her old calmness having long dissipated.

"You-what-how-wha?"

The Emperor sighed.

"I realize that in your world, my universe is naught but a work of fiction, a series of books and games to your kind. You are one of the people there who are somewhat familiar with the lore in my universe, which means that I will not have to explain too much to you."

Mal simply nodded at this, the sheer amount of fear in her systems clouding any rationality she might have had. She was something of a Warhammer 40k fan. Not too well versed in the lore, but aware of most things and important events.

"Do not fear my child, as you will receive adequate training before you are released into my universe."

"W-w-w-wha?"

Her new location completely forgotten, thoughts began to appear in Mal's head rapidly, the girl desperately trying to find a way out of her predicament.

What the hell did the prospect of training mean for preparation for the sheer incomprehensible brutality that was 40k?

In an effort to reassure her, the Emperor revealed some surprising information.

"Do not worry. You shall not falter, as you will have the same genetic code as I."

Mal's mouth was wide open again as she loudly exclaimed,

"HUH!?"

To share the same genetic code as the Emperor was to be a Primarch or a Grey Knight. Both were fearsome beings, but would only get so far in that universe. After all, several Primarchs have died and half of them had turned to Chaos. The Grey Knights, while being potent psykers and fearsome warriors, were not invincible.

However, becoming any creature with the Empire's genetic code would greatly aid Mal in the Warhammer 40k universe. She acknowledged this fact even though she still detested the idea of being reborn in such a place.

The Emperor began to walk away, gesturing for Mal to follow him with a hand gesture.

Seeing no other option, the girl complied, really not liking what was happening.

Being reincarnated into the 40k universe was to be sentenced to an eternal hell. There would be no moment of rest, only endless war, more so if she was going to take an active role in it.

No matter what this "training" the Emperor had in mind, it would not be enough. She was sure of it. After all, his own hubris was what truly led to his downfall according to the lore.

The Emperor suddenly said in a mutual tone,

"You just thought of something rude didn't you?"

Mal's eyes widened before she growled in acknowledgment.

"Of course. You're the most powerful psyker, which means that you can read my thoughts."

The Emperor simply continued to walk forwards wordlessly, almost as if he had not heard those words.

Mal knew that there was no chance of escape. First of all, there was absolutely no way she could get away from someone as powerful as the Emperor. Secondly, where would she even escape to? Mal was currently in unknown territory. It probably wasn't the warp but that just meant that she had no idea where it was.

Therefore, she could only follow behind the large man, hoping for the best, which wasn't much in her current situation.

Resigned to her fate, Mal slowly walked behind the Emperor, awaiting her "training".

Sometime Later, Unknown Location

Mal looked at the shabby looking house before her with disbelief and disappointment.

Other than the fact that it was seemingly made of gold, nothing about the structure was impressive in any way.

It was a small European abode with one floor and two windows in front.

Mal's confusion grew at this. Where was this? Why had them Emperor taken her here?

Before she could voice her questions however, the man quickly replied to them.

"This is my house. It is also where you will be staying from now on to the end of your training."

Mal was simply gaping at this point, unsure of what to think. Was this seriously the Emperor's home? This little house which didn't even look as if it had three rooms?

She eventually found her voice and pointed this out.

Trying not to be rude to the practically omnipotent god before her, she chose the best words she could in this situation.

"It's… smaller than I thought it would be."

The Emperor cheerfully replied, understanding her surprise.

"I always prefer the small and humble things opposed to the flamboyant ones. However, I couldn't let anyone know this as my subjects would be horribly disillusioned. Since I was the Emperor, I had to show off my power and wealth so I could not be undermined. Therefore, Even if I didn't like it, I had to live in a grand palace and make everything I owned needlessly shiny and flamboyant. It was a real pain in the neck."

Mal could only nod at this. After all, she could understand wanting to live humbly and normally. It was something he always did, something she would always do, even if it she had a choice in the matter.

Although, she wouldn't mind being just a little flamboyant, just to see what it felt like. She simply adored the clothes she wore, even if it was just for the comfort and the appearance augmentation it gave.

Continuing to walk, the two of them eventually made it to the house.

Somehow shrinking down his body, the Emperor took the form of a normal sized man to get through the door. All of his excessive armor vanished into a golden mist as he was left with only a black T-shirt and sweatpants.

A similar change occurred to Mal, leaving her with a white blouse as soon as she entered the house.

The living room was small, one of the three rooms (excluding the restroom), in the house. The room illuminated with a single lightbulb on the ceiling, Mal and the Emperor sat on chairs in a small golden dining room, Mal carefully examining the material of the constructs.

It was clearly not pure gold, perhaps an alloy considering the sturdiness of it.

The chair Mal sat on was not cold, as she would assume it to be, instead radiating a strange heat, not overwhelming, only preventing the cold experience of sitting on cold metal. It was strange how convenient it was.

Mal did not ask how the Emperor made everything with or what he made it with, as there were more pressing matters to discuss.

Starting the discussion, Mal traced the outline of the table with a finger.

"So, what do you mean by training?"

The Emperor smiled at this, answering cheerfully.

"I will personally train you to be the strongest psyker, swordsmen, marksman, leader, and inventor the Imperium has ever seen."

Mal's eyes widened.

"I'm a psyker?"

The Emperor sighed as if he expected her to not ask such a stupid question.

"You possess my gene-seed after all. Besides, you can't be a chosen hero in my universe without powers."

Mal frowned.

"What about the non-psyker Primarchs?"

The Emperor sighed.

"They were born and raised in hostile and trying environments. Besides, even they can't take on a whole ork WAAGH or an army of Tyranids on their own."

Mal's eyes widened again.

"Huh?! You actually expect me to do that?!"

The Emperor nodded seriously.

"I will make you a hero of the Imperium, someone who could take on whole armies by herself."

Mal sputtered.

"Wha-what makes you think I can do that?! And why me?! Couldn't you have chosen a soldier for this job?!"

The Emperor stared into Mal's eyes with a completely serious and grave expression on his face.

"It is because I see great potential in you Mal. I believe you can succeed where even my sons have failed. Please, save my world before it's too late."

Mal suddenly began to blush heavily.

"I-I-I"

No one had believed in her as the Emperor had. This was practically the first time someone had actual expectations for her, the first time someone entrusted something to her. Even if she knew that his request was something much worse than a death sentence, it was suddenly much harder to refuse.

Mal's brows suddenly furrowed in thought before relaxing, as she sighed in acceptance.

"I don't have a choice do I?"

The Emperor sighed.

"I'm afraid not. I spent all the energy I was saving up for the last millennium to bring you to my universe and to imbue with you with my powers and gene-seed. Moreover, my throne is slowly degrading, and when the life support fails, Chaos will reign supreme."

His eyes became almost remorseful.

"I no longer have the power to send you back home, nor do I have the power to protect humanity for another thousand years. I'm sorry."

Mal's eyes were wide, her face expressionless. Despite several pieces of unclarified information and an influx of emotions, she managed to somehow keep calm and maintain a steady voice.

"Can I have a while to think about this?"

The Emperor simply nodded, understanding that there was nothing he could say to better the situation. He simply told Mal that her room was the one to the right of the living room, watching her as she walked past the door.

Mal POV

Closing the door behind her, Mal entered her bedroom.

It was just a standard bedroom, except everything was gold. A bed lay in the left corner of the room, an active lamp standing on top of a wooden platform next to it.

There were no decorations whatsoever in this room, only the bare, golden walls, greeting Mal's eyes.

Sighing in exhaustion, the girl climbed on top of the bed, burying her face in the strangely soft golden pillow.

"Do I even have a choice in this? I mean, it's either save the universe or be tortured for all eternity by the Ruinous Powers. If they get enough power then I'm sure that they can reach here, wherever it is. I'm sure that the Emperor wouldn't lie to me about this. After all, what reason would he have to do so?"

Mal moaned in another burst of mental exhaustion, her head still buried in the pillow.

However, she then sat up on the bed, her face containing a small trace of determination.

"Yeah, I really don't have a choice in this. Even if it's just for survival, I'm going to have to do something about this situation. The only way my life can even be half decent anymore is if I take him up on his offer."

She frowned.

"Wait, a decent life? Since when did I ever have one of those? My life has always been disappointing, that's actually a reason I was so excited when I thought I would be reincarnated. If I become powerful then can't I just make myself a good life?"

Groaning, Mal shook her head.

"Then again, I'm in the Warhammer 40k universe. Is there even such a thing as a 'good life' in this place?"

Growling in annoyance, Mal finally made up her mind.

"That doesn't matter. I don't have a choice in this. I have to get as much power as possible and finally find a way to live happily. It might seem impossible, but it's the only route I can take."

There was really no point in thinking anymore. After all, nothing would change even if she did so. This was a situation Mal could not escape even if she thought about it for a hundred years. Therefore, she was going to do the sensible thing, and make the most out of it.

Waking out the door with a look of determination in her eyes, Mal strode back into the living room, into the vision of the sitting Emperor who was sipping coffee from a golden cup.

"That was fast."

He stated this before taking another sip. The reason for his change in attitude was unclear and frankly, unimportant.

"There's no point in thinking anymore. I don't have a choice, I'll take you up on your offer."

The Emperor sighed.

"I'm truly sorry for this my chil-"

Mal interrupted sternly.

"Don't call me that. My name is Mal, just Mal."

Eyes widening in surprise at this authoritarian, almost aggressive behavior, the Emperor was impressed.

He had chosen the right one.