Hello there folks and I would like to seriously say this...

I hate these bunch of stupid of art commissioners who constantly bloated my review section and harassed me with their honeyed words who makes false promises where they would scammed me out of my money.

Seriously, you know they're nothing but scammers who would butter me up with their pretentious words just so they could get my money.

Stop trying to compliment my story because I know my story isn't remotely 'intriguing' or 'unique' or 'special' and I admit that I am someone who is in over his head over whatever feces this idiots spew with their wanting to make art out of my story and get my hard earned cash.

Seriously, you don't need the money. Just make an art for it and that's it so stop harassing me with your garbage already.

Honestly, where is even your proof if you can actually make art out of my stories? Like, seriously, where even is it!?

Well, anyway, on with the story, I guess...

Disclaimer: I do not own Highschool DxD and 'Straw Hats DXD2' by 'leonardo18anime'. They belong to their respective owners.

Enjoy.


The grand mansion, a testament to the Gremory family's esteemed lineage and influence, stood bathed in the soft glow of the late afternoon sun. Its pristine white pillars and intricate carvings whispered tales of generations past, a serene facade that often belied the extraordinary events occurring within its walls. Today, that serenity was about to be shattered, not by demonic conflict, but by something far more… alien.

A vibrant crimson light erupted in the center of the grand foyer, coalescing into a large, pulsating magic circle. With a final flash, the magic dissipated, revealing Rias Gremory, the Crimson-Haired Ruin Princess, her usual elegant composure slightly frayed at the edges. Her breath was coming in short bursts, and her usually impeccable attire was slightly disheveled, but it was not her own state that would draw the attention of her household staff.

As the maids and butlers, alerted by the sudden burst of magic, rushed to greet their mistress, "Greetings, Rias-Sam-", their polite greetings have died in their throats as their eyes widened and their mouths agape as they took in the imposing figure that Rias had brought with her.

It is something that they had never seen, towering over Rias if it wasn't lying down, being of stark, metallic green in colour, it's body being a lean yet muscular build with it's limbs being rather thick having five digits that are still large in their appendages. Alongside it are it's head being a smooth, blank and faceless, and though currently unconscious, which gives it a rather unsettling appearance.

It is a creature that are beyond their comprehension and as much as they try to deny it, it is here and it is solid and undeniably real and it is lying down within the polished confines of the Gremory mansion.

"Quickly!" Rias commanded, her voice sharp and urgent, snapping her staff out of their stunned silence. "There's no time to explain! We need to get him to a spare room, now!" A ripple of hesitant murmurs went through the assembled staff.

That thing?

In their mistress's mansion?

A creature of unknown origin and power, potentially dangerous?

Their training and ingrained obedience warred with their primal instincts of self-preservation. Yet, they are servants of the Gremory family, and Rias is their mistress and so, doubt had warred with their duty, and fortunately, duty ultimately won.

"Yes, Rias-sama!" a butler, regaining his composure first, declared as the others followed suit, their initial shock slowly giving way to a mixture of apprehension and a strange sort of morbid curiosity.

They cautiously approached the it, their eyes darting nervously over its strange form. Lifting it was a struggle for it's metallic carapace is obviously heavy, and its sheer size made it unwieldy. Grunts of exertion filled the foyer as they strained, their muscles protesting with every step. They managed to maneuver the alien through the mansion's opulent corridors, their polished shoes scuffing lightly against the marble floors under the immense weight they carried.

Finally, they reached a spacious spare room, usually reserved for visiting dignitaries, and with another collective heave, they awkwardly deposited the alien onto the ornate four-poster bed. 'Deposited' was perhaps too gentle a word. 'Dropped with considerable thud' was more accurate as the bed groaned in protest, its delicate frame clearly not designed to withstand the weight of such a being. One leg promptly snapped, and the mattress sagged dramatically, the alien's considerable bulk overflowing the edges. It was a far cry from a dignified repose, but it would have to do.

"That will be all," Rias dismissed them, her voice firm but laced with fatigue. The maids and butlers, relieved to be released from their burden and the unsettling presence of the alien, bowed and quickly retreated, their hushed whispers echoing in the hallway as they retreated to the relative safety of the servant's quarters.

Rias is now left alone with the alien, the silence in the room heavy and thick with unspoken questions. She turned to face the creature sprawled awkwardly across the damaged bed, her crimson eyes studying it intently.

An alien.

A real, honest-to-goodness extraterrestrial being that it felt surreal.

Her life, even as a devil, was grounded in the supernatural, the magic, the intricate hierarchies of the underworld and the ongoing conflicts with Heaven and Fallen Angels. She had dealt with devils, angels, mythical creatures, and the occasional rogue human with a Sacred Gear.

But aliens? That is the stuff of science fiction, a genre completely outside her realm of expertise.

What on earth is she supposed to do now? This is beyond anything her Occult Research Club had ever encountered, beyond anything she had ever learned from her brother or even from the vast libraries of the Gremory estate.

Should she tell Sirzechs? He is, after all, the Lucifer, one of the Four Great Satans, and possessed of immense wisdom and power. But even he… would he even believe her? The thought of explaining this to her brother brought a flicker of amusement to her lips, quickly replaced by a renewed wave of uncertainty as thinking about her brother, she would think of him as being such a worrywart.

And Sona? Her best friend, the Student Council President. She knows her to be pragmatic and intelligent, a problem-solver in the truest sense of the word. Perhaps Sona would have a logical approach to this… this alien situation.

Or maybe she should consult her peerage first such as Yuuto, with his vast knowledge of holy swords, Akeno, with her control over lightning and her serene wisdom, Koneko, with her immense strength and understated insights for they are her family, her trusted companions, and she valued their input.

But then there was the most pressing question of all: what would happen when it woke up? She had witnessed a brief flicker of consciousness during the rescue, a desperate thrashing, a flash of green light from where it's face should be. It doesn't seemed friendly then, and she had no reason to believe it would be now.

What if it's hostile?

What if it possessed technology far beyond anything Earth had ever conceived?

What if it is… dangerous?

The possibilities are both terrifying and fascinating and it swirled in her mind.

She carefully approached the alien, circling the bed cautiously. Up close, the details of its carapace were even more intriguing. It isn't smooth and metallic like polished steel, but rather possessed a subtle texture that is almost organic. Intricate lines and grooves crisscrossed its surface, resembling the exoskeleton of some colossal insect, yet it gleamed with a metallic sheen. It was a bizarre fusion of the organic and the artificial, a testament to a biology and technology utterly alien to her understanding.

As she leaned closer, studying the intricate patterns on its arm, a low groan rumbled from the alien's chest. Rias instinctively recoiled, her heart leaping into her throat. She had been so lost in her contemplation, in her growing anxiety, that she had almost forgotten the immediate presence of the unconscious extraterrestrial. This wasn't some museum exhibit; this was a living, breathing (presumably) alien in her guest room.

As if to punctuate her thought, the alien's huge body twitched again, more violently this time. Then, with a sudden jerk, its head snapped up. Its previously blank face, smooth and featureless moments ago, now illuminated with a pair of glowing green eyes that snapped open, blazing with startled alertness.

Rias instinctively backed away, putting distance between herself and the awakening alien. The green eyes darted around the room, taking in the opulent surroundings, the broken bed and finally, the crimson-haired girl standing before it. Panic flared in those alien eyes as it thrashed, its huge limbs flailing against the damaged bed frame.

"It's alright!" Rias tried to project calm, raising her hands slowly to show she meant no harm. "Please, calm down. You're safe." Her words, though spoken in Japanese, were meant to be reassuring in tone, a universal language of peace.

But the alien, clearly not understanding a word she said, reacted with immediate aggression. Its large hand moved with lightning speed as a bulky device that is mounted on her wrist has appeared and as a flicker of green energy has appeared, it has activated, firing a beam of emerald light shot out, striking the wall behind Rias with explosive force as plasters and stone shattered outwards, leaving a smoking crater where moments before there had been a pristine wall.

Fortunately, Rias yelped and dove to the side, narrowly avoiding the energy blast. The alien, now fully awake and alert, pushed itself up to its full height, towering over her with intimidating presence. It scanned the room, its green eyes narrowed, before fixing on Rias once more. The device mounted on it's wrist is still aimed directly at her as it then began to speak, a series of guttural clicks and hisses, punctuated by sharp, metallic rasps for it's voice, while alien, resonated with a deep, threatening undertone.

"Whoa, hey, easy!" Rias held up her hands again, trying to project non-threatening body language. "I'm not going to hurt you. I helped you, remember?" Of course, it wouldn't understand. She was speaking a language completely foreign to it, and it was clearly in a state of panic and confusion. She needed to find a way to communicate, to de-escalate this situation before someone got seriously hurt, or worse, before the mansion was reduced to rubble by errant alien energy blasts.

She took a slow, deliberate step forward, keeping her hands visible. "Calm down," she repeated, her voice soft and soothing. "It's okay. You're safe here. I just want to help you." She held her breath, waiting, watching the alien's reaction, praying that her attempts at reassurance were even remotely effective. The green energy weapon remained pointed at her heart, unwavering. The guttural alien language continued to spill from its mouth, a torrent of incomprehensible sounds.

Time stretched, heavy with tension. Rias held her ground, her gaze locked with the alien's glowing green eyes, projecting calm and peaceful intent as hard as she could. She felt a bead of sweat trickle down her temple, her heart pounding against her ribs. Just as she was beginning to wonder if there was any hope of communication, any way to bridge the chasm of language and species, the alien suddenly stopped its alien chatter. The green weapon remained aimed, but its stance seemed to relax ever so slightly. It tilted its helmeted head, its green eyes narrowing in what might have been… curiosity?

Then, in a voice that was surprisingly deep and resonant, albeit slightly mechanical-sounding, it spoke. Not in clicks and hisses, but in clear, unaccented English. "Where… Am… I?"

Rias froze, her carefully constructed calm shattering into a million pieces of stunned disbelief.

English?

It spoke English?

She blinked, momentarily speechless.

All her anxieties, all her worries about alien technology, communication barriers, potential hostility… none of it had prepared her for this. A wave of relief, so potent it almost made her weak in the knees, washed over her, quickly followed by a surge of bewildered laughter bubbling up inside her. Of all the things she had expected, of all the problems she had foreseen, this was not even remotely on the list.

"You… you can speak English?" she stammered, her voice barely above a whisper, still trying to process the utter absurdity and unexpectedness of the situation. The alien, still war and armed, simply stared at her with those luminous green eyes, waiting for an answer to its question.

"Affirmative..." The alien said again, "Now tell me where I am located or I shall disintegrate you by your minute molecule of your life?" The alien said in a threatening manner.

In her haste, Rias shakes her hand, trying to placate the alien as she said, "Wait, wait..." She begged him, "Look, I know you're scared but there is no reason for such violence. Listen, you are at my mansion, that's all. And I take you here."

"Why? Explain your reasoning?" The alien said in a threatening manner, once again.

"B-because... I saw your ship crash landed on somewhere and when I find you, you are... unconscious... that's all..." Rias answered to the alien at the best of her abilities can follow as she is still at the mercy of the alien.

As the alien continue on aiming his wrist mounted device at Rias for what felt like an hour, the alien finally turned the device off as he relented, "That is logical. For that, I express my thanks." He said while bowing.

Rias then sigh in relief at the fact that he diffused such a harrowing situation because if it didn't, he doesn't know how to handle such a being like him in the first place, especially with how, for all her confidence in her signature Power of Destruction, she does know that it cannot save her against an alien that is large in size and technology that are, as it is already obvious, alien to her.

"Thank you for your understanding..." Rias said, saying her thanks to the alien, "Especially for sparing my life, that is."

"That maybe true but I still do not trust in an unknown variable like you. First contact with a new species are something that must be examined thoroughly, whether they are harmful to me, harmless or a harmless persona as a facade which hides their dangerous attributes. Which are you, then?" The alien said, his deep tone becoming more menacing as a result.

"I assure that on my word and my honour that I am of no danger to you. For it is on my name as Rias Gremory." She declared to the alien, as well as introducing herself.

"Rias Gremory, you said?" The alien said the name, "Greetings to you then, Rias Gremory. Now, what are you?"

"I am..." Rias stopped herself, not knowing if she can exposed herself to the alien of her true race to the extraterrestrial being, "A human. Yes, that is what I am."

"A human, you say?" The alien said, looking up and down on Rias he analyze her, "If that what you are, then I believe I should begin my introduction as well."

The alien then stand straight and said, "I am Xylar of the Kyr'Vak Collective. Observation Unit 743-X. A pleasure to meet you."

"A pleasure to meet you as well, Mr. Xylar." Rias said as she bowed.

"Indeed. Now then..." Xylar then started to move around and said, "I believe that I need to return to my ship and be where I ought to be. I thank you for saving me, Rias Gremory but I must be off." He said as he aimed his wrist mounted device at somewhere, much to Rias' course of alarm.

"No, wait-" Rias thought that Xylar would destroy the wall but instead fired a portal in the middle of the room, being a large glowing green oval that fits the size of Xylar himself as he walk towards it before disappearing in midair.

As Rias continue to stare, gobsmacked at the incomprehensible sight before her, she then decided to do the smartest thing to do: She then call someone from the magical communication and said, "Sona. I think I have a problem that you wouldn't even believe it."


Well, here it is.

This is as far as the chapter of this story goes so, if you have any ideas, let me know in the comments below.

Regardless, what kind of ideas would you want to have an OC in Highschool DxD, Fairy Tail, Akame ga Kill and many more that are outside the genre itself? Share your thoughts in the comments below.

As always...

Ciao...

PS: Is there anything wrong with the story? Please share your thoughts to make the story much better and more well written, as well as his criticism are allowed although no flames, please.