"Sam, fate rarely calls upon us at a moment of our choosing…"

Optimus Prime, 2009


Millions of years ago, before humanity came into existence, there was a war…

A civil war between two factions that split their planet in two…

One side fought for freedom…

The other, fought for tyranny…

Their war was so great that not only did they turned their life-giving world into a barren wasteland, a massive grave, but their conflict pulled in other worlds…

Some were asked out of desperation by one faction…

Others were forcibly conquered and enslaved by the other…

These sides of the conflict, were an ancient species of sentient beings that were among the first to come into existence in the universe. Unimaginably wise, yet more 'human' than some would admit…

These beings were named after the home planet they fought for, and regrettably destroyed, but when their conflict came upon a little world called Earth, its inhabitants came to call these beings by another name. One born from their power, and cultural way of life…

The Transformers…


-[Your Choice: Home]-

It was another day for a Japanese boy named Issei Hyoudou…

He woke up in his bed, surrounded by beautiful girls that love him, and all of them were naked. It was normal, and none of them, despite this being maybe the 50th or 60th time, they all still had their v-cards. He had the beautiful Rias Gremory cuddling him on his right arm, the petite Koneko wrapping herself around his waist next to Rias, the sweet hearted Asia Argento wrapped her arms around Issei's left arm, with Xenovia Quarta following the same as Koneko beside Asia (and a few times accidentally kicking Issei off his own bed). The last girl was the half fallen angel, Akeno Himejima, and she was the extra bold one of the girls as she had a tendency to sleep on top of Issei, with usually results in fights between her and Rias over the would-be harem king.

Right now he was eating his breakfast with his friend/guest, Yuuto Kiba, as his mom was cooking for their other guests at the Hyoudou residence, with Asia, Akeno, and Rias helping her out while Issei's dad was chatting with said guests. The home's guests were Rias' older brother, Sirzechs Lucifer, and his servant/wife, Grayfia Lucifuge, along with Rias' nephew, Millicas Gremory.

"It seems there's never a dull day here, huh Issei?" Kiba asked him. Even though it's been a month or two since Rias' father renovated the Red Dragon Emperor's home, Issei was still not used to his house becoming a miniature palace.

The most infamous member of the Perverted Trio answered as he finished off his bowl of rice, "Tell me about it…I found another two hidden rooms last night, and in the morning. That makes around 10 hidden rooms in the house we've found so far…"

"Actually Issei…" Sirzechs interrupted, "The total was eleven as I recall, or did you forget about the extra closet connecting Akeno and Koneko's rooms?"

"Right! Forgot about that one, mostly because it was so easy to spot for a hidden room that I kinda didn't consider it a hidden room…" Issei said as he ate a slice of toast.

"I'll be honest, I thought the same thing Issei did about that closet room. I didn't think it counted…" Issei's father stated as he started to laugh at the whole ordeal caused by the incident of discovering that room so quickly and easily, and how Akeno and Koneko seemed pissed off as it felt wrong for some reason they neglected to mention.

Then entering the living room/kitchen was the Valkyrie, Rossweisse, Xenovia, the angel Irina, and Ravel Phenex, the teacher and fellow students of Kuoh Academy.

"Well, we better be off to school, if we don't leave now, we won't be there in time to have our netting at the clubroom and check up on Gaspar." Rias said as everyone grabbed their food, their bento lunches for later, and headed out…

All the while unaware of the group getting quite a surprise when they arrived at the Occult Research Club…


Ten Minutes Later…


-[Your Choice: Ruins]-

Rias Gremory, her peerage, Irina, and Ravel had arrived at the school gates to a most unusual surprise, as they saw lots of other Kuoh Academy students standing outside on campus, looking at the same direction.

Rias was wondering what was going on and said as she walked up to one of the female students, "Excuse me…what is going…on…"

She answered her own question as she and the others saw what everyone was staring at…

It was the old school building that was the base of the Occult Research Club, there were several massive holes in the building with dust billowing out of them and the cracked windows and smashed doors. The cracks in the ground surrounding the building seemed to indicate that the damage the building sustained were from meteor impacts, which would explain why she didn't get an alert that the building was under attack, as it had magical barriers in place to prevent attacks from groups like the Khaos Faction.

"Whoa! It looks like a disaster zone here…" Issei thought aloud, everyone else thinking the same thing, until he suddenly remembered, "Oh ****! Gaspar! He's still in the building!"

His fellow comrades expressions widen with shock as Issei's comment reminded them that the vampire member of Rias' peerage lived in the building and could be hurt or worse from multiple meteor strikes.

They rushed into the building, ignoring all the students and faculty telling them to wait for the authorities to investigate. Issei and Kiba tackled the entrance doors open as they were bent shut and wouldn't budge. Koneko bolted ahead inside to begin looking for Gaspar, joined by Xenovia and Irina as they head for his room.

Rias took a few moments to inspect the damage that will likely cost her family a fortune to repair, the walls collapsed, the pipes burst, the floor and ceiling was ripped up in several places, windows were either cracked or completely destroyed, doors were blown clean off their hinges, and the support beams, while still holding strong and stable, were bent in unnatural conditions that betrayed the building collapsing into rubble.

Akeno rubbed her hand along one of the support beams and raised an eyebrow as she commented, "What's this? The support beams are bent in these shapes and yet they show absolutely no signs of breaking. It's like they were warped into these shapes without the wood breaking."

Rossweisse walked down the hall that Gaspar's search party went down and found one of the impact craters, it was pretty small, but it was very deep, about 12 feet deep, puncturing the building's foundations and likely destroying them. But what was weird was that there was no meteor at the bottom of the crater, what was there were fragments of a metal she knew didn't match any metal on earth or in the other worlds. There was also a few drops of a glowing blue fluid that seemed as viscous as blood.

Rias looked at Issei as he opened one of the storage rooms on the ground level and helped Asia look inside for Gaspar. She calmly asked, "Issei? Will you accompany me and Akeno to the clubroom? From the looks outside and in here, much of the meteors seemed to have landed in there…"

Issei didn't want to stop looking for his friend who might be in trouble, but when Asia put her hand on Issei's arm and smiled, it told the Boob Dragon Emperor everything he needed to hear to convince him to do as he asked.

"Alright Rias…" he said confidently, holding her hands, "Let's get to the clubroom…"

Kiba said as he pulled out some shattered wooden swords, "I'll inform Lord Gremory, Azazel, and Michael about this, the damage seemed to have destroyed any of the magical equipment they all had stored here."

He left as Rias ordered everyone to the clubroom, with Irina electing to continue looking for Gaspar as he couldn't respond to the telepathic command, Rias noting that the telepathy signal seemed staticky as something was interfering with the signals, likely the meteors.

When they all reached the second floor hallway to the clubroom, they saw even more damage than downstairs, as the upstairs looked like it was in the middle of some battle. Large portions of the walls and the holes were singed, like a fire scorched the wood and plaster, but they didn't catch fire, so the fires that may have started were put out as quickly as they began.

That seemed to slightly unnerved everyone, especially after Rossweisse explained what she found in one of the craters. When Rias opened the doors, albeit hesitantly until her boyfriend Issei gave her some much needed comfort, the scarlet haired beauty opened the doors to see what had become of her clubroom.

-[Scary House - Pokémon X and Y]-

They saw that the room was a complete mess, as a thick plume of dust blanketed the entirety of the room, and the room looked like a tornado or hurricane went through the building. The showers in the back were completely destroyed, which upset Rias a little, the couches were thrown all over, one was embedded deep in the right wall, the other was ripped in half with both halves in the floor and the ceiling. The carpet from the Gremory household was destroyed by every sense of the word, as it was either burnt, waterlogged, shredded, or warped. Rias got mad as soon as she saw her desk and chair, or what shards remained of her chair, as the desk was in four large chunks of shredded wood. The lamps and candles were either nonexistent or broken beyond repair, the coffee table that sat in the middle of the room had a big hole in the center of it.

"My my, it seems our beloved clubroom sustained the most damage of the entire building…" Akeno commented as she picked up a fan, only for it to crumble away into dust.

"I'd like to know what happened here…" Ravel Phenax said, before she tripped on something and it made a loud metallic thud.

Some snaps of wood breaking alerted everyone after Ravel's trip and then, something fell through the ceiling. When it landed, it made a loud thud that echoed for a bit, it sounded like the thing that fell from the ceiling was made of metal too, and it sounded heavy as the wooden floors buckled and snapped as it hit the floor after it broke the coffee table. The impact shoved the dust in the room out the door or other holes, clearing up the room's visibility somewhat, they saw how much worse the room looked, but also saw littering the floor…

Ravel shook her head as she saw what she tripped on, and looked shocked as she saw, a…metal man…

Irina heard the loud thud and warped over to the clubroom and she lit up the room as saw what everyone was staring at. There were around 15 metal men lying down all over the room, three were dangling from the holes in the ceiling, they all had different colors and shapes and sizes, and Issei pointed out they look like, robots. Ravel saw she tripped on what looked like the biggest one in the room, a 11 foot tall, boxy metal bot that was grey and golden yellow in its body's colors. Rias and Issei looked at the one robot that lays in the middle of the destroyed coffee table, it was a pretty big, 6.5 foot tall robot, with a solid boxy frame, and was colored red and blue. Upon closer inspection, Issei noticed right off the bat that there were certain details on the red and blue robot had elements that seem to belong to vehicles, it had windshields on its chest, tire wheels and gas tanks on its blue legs, and it had a truck's grill where its abs would be.

Everyone else looked at the robots and noticed that, aside from the one Ravel tripped on and another one located where the showers were, they all had parts on their bodies that were clearly from vehicles. Asia opened one of the doors outside the clubroom and found another couple robots like the ones in the clubroom, the two she noticed immediately were a yellow and black robot that looked to be around Issei's height (maybe an inch taller), it had car doors on its back that looked like insect wings. The other robot (a red and black colored one) really caught Asia's attention as it had a body shape that was undeniably female at a glance, and how it's head kinda looked like a geisha's hair done up nice for performances, but she also noticed that it had wings like an angel's. Only, its wings were what looked like the wings of a plane of some kind.

"What are a bunch of robots here for?" Xenovia said as she lightly kicked an all red burly looking bot with a windshield chest, she thinks they're deactivated or something.

"I don't know, but looking at them more closely…" Issei said as he leaned closer to the red and blue truck robot, "I can't help but notice what look like gunshots on their…armor? I suppose?"

Issei mentioning gunshots on the red & blue bot made everyone else look at the bodies of the robots more closely, and they noticed all sorts of dings, singes, and scrapes on them. They seem to tell a story…

"It seems like…" Rossweisse guessed as she rubbed her hand over the chest of a large bot that had attributes of a jet plane, "…the marks on their chassis make it like these robots were built for combat. But the marks, they make it more clear these robots have seen war…"

"War?" Irina asked, "There hasn't been a war fought with robots like these, ever…"

"Which is why I don't think that they are robots built by humans at all." Rossweisse interjected as she moved a robot's arm around to get a grasp on its capabilities, "From what I've read up about robots, these things are exceedingly mobile, their range of movement is far more advanced than anything today. It's more like a human in terms of mobility…"

The Valkyrie/Devil was adjusting her hand to get a better hold on the jet robot's arm, when her fingers touched its wrist joint and for a second, Rossweisse let out a scream of shock and let go of the arm immediately, it making a thud as it landed on its chest.

Akeno asked her fellow devil with surprise, "What happened Sensei? Are you alright?"

Rossweisse fiddled her fingers for a moment, and then replied with clear shock in her voice, "I…I…f-felt a…a…a pulse wh-when I g-grabbed its wrist…it felt EXACLTY like a pulse from a heartbeat…!"

That made everyone get chills as Ravel quickly got off and away from the giant robot she tripped on, clearly freaked out about a robot having the pulse of a living thing. Everyone else but Issei started to back away from the robots like they were cockroaches, the perverted boy looking at a mark on the red & blue robot's left shoulder. It kinda looked like a face, and he then saw the other nearby robots having the same mark on their bodies and on the non-red bots the face-like mark was red in color and they all matched the bot he was observing.

Issei commented, "Why does that mark look so…familiar? I know I've seen it before somewhere…?"

Issei was too focused on the other robots matching symbol to keep his balance and began to trip on a round object he couldn't see and placed his hands in front of him to break his fall. His hands hit the truck robot and then sparks flew from the robot's chest and its arms and legs tensed as the electricity started a chain reaction. The robot's eyes suddenly glowed an almost mystical cyan color and a groan escaped from where its mouth would be. The faceplate on the truck robot retracted, revealing a mouth with metal parts that loosely resemble teeth as it seemed to gasp for air.

-[An Outbreak - Dragonball SUPER]-

The truck robot then let out a war cry as it lurched upright (and its mouth plate covered its mouth again) and went after Issei to the shock of everyone in the clubroom, Issei activated his Red Dragon Emperor armor and saw the activated robot lunge at him with blinding speed as it then gripped his throat with its left hand in a grip that crushed the armor easily, and with its right hand, released a staff that turned into a battle axe that glowed in a orange color.

Issei got pinned by the robot onto the floor as it shouted something in an alien like tongue and seemed poised to split his skull in two as he couldn't escape or retaliate, let alone breathe with this machine pinning him. The perverted devil felt all that in the span of a second as he heard all the girls shout his name in surprise and fear when the robot readied to kill him. Issei feebly grabbed the arm chocking him and tried to push it back, but failing.

No f***ing way! I can't pry his hand from me, and I lifted Thor's monster-sized hammer a few months ago! He thought as he saw the robot's eyes and noticed how it seemed to be made up of possibly hundreds of tiny pieces as the glowing showed every little part. Issei also noticed how, human, the eyes looked as he saw in them a kind of primal fury, the kind he recognized as the fight or flight response from past experiences.

"Get off of him right now!" Xenovia shouted as she summoned her sword, many of the other girls readying their attacks until Asia pointed out, "Wait! You'll hurt Issei badly if you attack now!"

That put a screeching halt on all of the girl's attacks as they could only watch as Issei couldn't even gasp for air in his struggle.

The robot raised its axe to strike its foe down, until more sparks sprung from its body, and the robot's eyes flickered and the machine blinked its eyelids, more questions popped into Issei's head as he saw that, his vision getting blurry.

-[You Don't Need Me - Transformers: Revenge of the Fallen Complete Score]-

The robot's eyes stopped flickering as it looked around, hearing a gag under it, it looked down to see a human boy choking to death as his face turned blue. The robot's eyes widened as it dropped its axe, the orange glow disappearing as it landed on the floor with a loud clang.

It quickly let go of Issei's throat and got off of him, the teenage boy gasping and coughing harshly as his lungs desperately tried to recirculate his air. The girls noticed that the robot was off Issei and were ready to unleash hell for harming their Issei, until they heard the robot speak in their language…

"Are you alright young man? I am sorry for any harm I have caused you…"

Everyone was flabbergasted at the robot speaking perfectly, it didn't sound robotic at all, and the voice that said that sounded like a man maybe in his 50s or more, as it sounded wise and strong. Their surprise grew more intense as they then saw the robot help Issei upright, Asia ran over to Issei and used her Sacred Gear to heal the boy she loves. She noticed the purple bruise in the shape of a hand around Issei's neck as he still coughed from oxygen deprivation, winding up coughing a little blood as he did. It made panic ensue for all of Issei's admirers as they ran to his side as the robot stood up and stepped back with a thud, and the floor creaking with every step 'he' took.

Asia was unaware that the yellow bot she found behind the door outside the clubroom started to twitch and its eyes glowed cyan like the truck bot's.

"Issei! Are you alright?!" Rias cried out in a worried tone, the robot looking around as Issei replied he was fine, softly muttering, "Where am I?"

Xenovia heard the robot's voice and in a fit of rage, dashed at the robot as it sidestepped from the thrust of the blue-haired girl's sword. She shouted angrily, "I'll make you pay!"

The robot noticed her face and noticed the other robots lying down on the floor, and without hesitation, made his move…

Xenovia tried to swipe her weapon to cut the robot in half, but he turned again. But this time, the robot grabbed her wrist and applied enough force to force Xenovia to let go of the sword, but not enough to hurt her. Then the robot grabbed the sword and tossed it into a vacant wall behind him. Before Xenovia could recover and lunge at her opponent in response to a metallic noise she hadn't heard before, she stopped dead in her tracks as the robot turned his left arm into a firearm kind of weapon and she was staring down the middle of it. The robot has aimed the weapon right at Xenovia's brain, as she froze. She didn't see it, but everyone else saw the robot shift its arm into a kind of cannon and were stunned.

The robot spoke again, directly to Xenovia in a stern, yet calm tone, "I have no intention to harm any human children, and I never intended to cause you any harm or make you feel my intentions were hostile. You should not attack someone before they have an opportunity to explain themselves."

Rias looked stern as Issei finally stopped coughing, and said to the robot, "You attacked a member of the House of Gremory, regardless of your intentions…"

The robot looked down to the ground for a brief moment, everyone noticing a hint of sadness and shame on his robotic eyes, he replied after kneeling, "For that, I humbly apologize for my actions…myself and my soldiers were attacked by a monster as we traversed the cosmos. Fighting our enemies for the freedom of all sentient beings. From the looks of things, we have blacked out as that monster tore our ship apart, and I have no recollection of what transpired after he broke through the hull. Or how we ended up here…"

Rossweisse didn't get into the fray and simply observed, she looked at the robot and noticed how it had…a soul…!

She said, "I can tell he's telling the truth, I sense, a soul within this individual…"

They were all too focused on the truck robot to notice the other robots beginning to stir.

Issei had an uneasy feeling in his mind, especially since this robot's mannerisms and voice just rang too many bells of familiarities in his head and asked, "Who…or what are…you…"

The robot's mouth plate retracted and revealed his mouth and a nose of sorts and he spoke, Koneko seeing all the little pieces on his face fold and flex as he answered Issei's question…

"My name is Optimus Prime…I am the commander of the Autobots from the planet Cybertron…"

Everyone gasped at the mention of being from another planet, but Issei chuckled a little as he said, "I knew it…I don't know why, or how…but I knew it…"


To be continued…


Author's Notes:

I hope you'll like this story I've put out, a crossover of Highschool DxD & Transformers. Not the first I admit, but one I hope is one of the best. I became inspired to write my own crossover here after reading a few other fan fictions of this crossover. One thing I find weird was how a majority of the other crossovers of this crossover were basically replace Issei with Jack Darby from Transformers Prime (good show, wished for more characters), and that kinda rubbed me the wrong way. Aside from three others (one was OP being thrown into the beginning of DxD, another was a one-shot for a possible full story that never got made, and the last was human Transformers with Transformer powers), I was not a fan of replacing characters that are relevant to the story, and one of the mentioned three really made me want a more traditional, air quotes, crossover.

A few things to note about this story so you don't go all "huh? I don't get it? Why is this here?";

- One, this story is largely self-contained, but it is part of a bigger 'universe' I've constructed, as it is a loose sequel to another story of mine, Pokémon - The Equestrian Chonicles, so that story (and events in it that I've yet to write) will be referenced quite frequently, and also in that story's universe, the Transformers and My Little Pony: Friendship is Magic inhabit the same universe…

- Two, as there are multiple versions of the Transformers mythos, I should explain which transformer universe is being used here. And the answer is…all of them! Kinda. The Transformers I'm using are more or less a largely original continuity that has bits and pieces of all forms of Transformers media, like the Aligned Continuity (Transformers Prime, War for Cybertron games, Robots in Disguise 2015), so if it helps, you can say it is a different take on the Aligned Continuity…

- Three, as tempting as it is (and some people are VERY persistent with it), I will not mess with any of the established pairings in either series. In other words, if it's canon, I won't pretend it doesn't exist or try to write it out of existence. So sorry people who want me to pair any of the Autobots with any of the DxD characters. That means, No Optimus-x-Rossweisse, no Bumblebee-x-Akeno, no Cliffjumper-x-Koneko, and NO Issei-x-singular girl. Issei canonically has a harem by both last chapter of part 1 & the word-of-god (aka, the creator says so). I don't have a problem with pairings at all (unless the people involved have a ludicrous age gap and are not word-of-God), but lately I've been having a whole, if the creators say this is canon, then so be it, don't interfere with their word. It's something to expect from not just this story, but all my stories…

- Four, anything like this; -[Portals - Avengers: Endgame Original Motion Picture Soundtrack]-, is meant to be music that sets the mood for any scenes I write. Anything that has 'Your Choice' in place of a track is meant to be your own choice of background music that fits the mood of a certain scene (useful for rereads of chapters). They also serve as a way to suggest your own choices for the scene (and I mean that in a serious capacity, so no suggesting Baby Shark or something), so don't be afraid to choose tracks from other anime or video games that you feel set the mood of scenes well…

I also think I should establish where in the DxD timeline does the story take place…

It's a little murky, but I think it's safe to say that the story takes place after or during the latter half of Season 4 of the anime. If someone wants to be my beta reader for this story, it would help greatly in solidifying when the story takes place. I also really rather not mess too much with DxD's timeline of events when possible.

If you want a rundown on which Autobots are going to show up, though I'm sure you figured out a few of them, I'll first name the ones that were described…:

Ravel Phenax (yes that's how it is spelled, I looked it up, pronounced as Phoenix) tripped on one of the Dinobots, which dinobot is Sludge (the one who transforms into an Apatosaurus). Grimlock is in the story, don't worry, he'll actually make his presence known in the next chapter.

While we are on the Dinobots, I mentioned that Sludge and another bot in the clubroom didn't have vehicle parts on their bodies, yes, that other robot is a Dinobot, the identity is Swoop, Grimlock's best friend/meditator.

The all red Autobot is indeed Ironhide, I think the 'windshield for a chest' was way too obvious.

These next two are so obvious that it isn't funny, Asia noticed Bumblebee and Windblade in that room outside the clubroom.

The jet robot Rossweisse inspects is one of the Aerialbots, so that does mean we will have combiners/gesaults/scramble-city robots in the story. As for which Aerialbot, well, it's Silverbolt.

The other robots for now, I'll keep secret. But, I'll give you hints at who else was there…;

- A few are just generic Autobots, like the Decepticon Vehicon troopers.

- One is colored green…

- Another is really boisterous and loud…

- Another bot is an old gruffly hardcase…

- Two are young and full of themselves…

- One has a race car alternate mode…

- And the last one is a fan favorite among all Transformers fans…

Leave your reviews and any criticism is appreciated, and anyone willing to help me out with this story is more than welcome to offer their assistance, especially as my knowledge of High School DxD is a little limited at the moment (as in, a few years ago I knew enough to make a passable fanfic, but now I'm kinda reacquainting myself with it).

I await your responses to this story…