A/N: Special thanks to the The Grand Library of Ashurbanipal Discord server (Or Overlord Fanfiction if the server didn't change it's name yet) for playing along with my wild idea. Fair warning, with my story based on the discord in mind anyone outside of our discord might not get the references here.

That doesn't mean you readers can't join the story though, you are welcome to come along with us. If you do want to join our discord link is discord. gg / hJrfday (remove the spaces). After that just ping me and I'll see what I can do… Maybe also read AtheistBasementDragon's amazing works as well… Oh yeah I don't think I need to say this but this story is a crack-fic, if you don't like those stories then this fic isn't for you…

Prologue

"WHAT THE HELL?!" Unable to contain his frustration, Suzuki Satorou under the guise of his avatar, Momonga, proceeded to slam his fist towards the table.

"HOW CAN YOU JUST ABANDON THE GREAT TOMB OF NAZARICK?! OUR GUILD?!" Pausing for a moment in silence, Suzuki already knew the answer to why HeroHero proceeded to leave him. Much like most of his friends who were unable to reach him…

'I get it, you guys have your own lives to deal with outside of Yggdrasil…'

"A shame isn't it?"

Rising from the soon to be deleted chair in the meeting room, Suzuki's mind of thought was abruptly interrupted by the mysterious voice.

Looking around his surroundings, Suzuki couldn't help but notice his surroundings change around him. What was before a meeting room of 41 chairs surrounding a massive marble like table was replaced by an ominous dark void.

'What the? A world class item?!'

He never heard of a world class item that was able to bypass other world class items, infact as far as he knew it wasn't a thing. But if it wasn't a world class item then how did a player manage to sneak so deeply into the Tomb without alerting any NPCs?

"Oh please, did you really think an algorithm of ones and zeros is enough to stop me?"

Facing the perceived direction of the voice, Suzuki couldn't help but see nothing at all. Though it felt as though his mind might have been playing a trick on him, he felt something telling him that he was legitimately in a dark void talking to nobody… Or rather a being he couldn't perceive…

'Wait a minute, how did I come to that conclus-'

"I hope you don't mind but I had to subtly influence your mind a bit, you wouldn't want to spend what little time you have left talking to a stranger do you?"

Suzuki couldn't help but grimace, true enough he wouldn't want to spend his last minutes in Nazarick talking to some stranger who managed to sneak into the meeting room without alerting anything. However more importantly, he would not allow the memories of his guild mates be tarnished by-

"Oh no, you don't have to worry about me messing with anything… I'm just here to give you the opportunity to meet your precious guild mates once again, that's all…"

Suzuki couldn't help but pause. Though most of him was against the idea, believing it was too good to be true, a small but ever increasingly louder part of him couldn't help but want to accept the deal.

'This has to be a trick… But what can I really do? This guy is already throwing things that's able to bypass every resistance I have… I… Is he actually able to bring the guild back?'

It's not like Suzuki to be so hopefully optimistic, especially towards a stranger. However he couldn't help but glance towards the clock in concern… Only to freeze in disbelief.

The clock wasn't counting down. In fact it was stuck at 11:45:59… Was he even talking to a player? Could this being actually bring back his friends?

"So… Do we have a deal, Momonga?"

~Line break~

Ozimyy began to slowly open his eyes, suppressing the urge to yawn as he suddenly found herself looking towards a dark albeit regal ceiling. It almost looked like a throne room of some sort, kinda like the throne room from Overlord… Actually it looked almost identical to the throne room… And he is currently lying on the floor of said room…

As his senses snapped towards him, he immediately began to flail his limbs momentarily as his head snapped left and right to confirm where he was. Seconds later he began to calm for a moment as he started to scan the area. As much as he liked for it to be a dream, he knows damn well that his dreams don't tend to mimic anime locations or emphasise the unfamiliar unless he happens to be lucid dreaming.

'Erm, I teleport back home?'

As hard as Ozimyy tried to think himself in a different scenery he found his efforts in vain. As he began to pick himself up, he began to notice how large everything was around him. He never imagined the throne room in Nazarick to be so large.

'Were the humans from the new world twice the size of humans in real life or something? It's almost like I got turned into a kid again…'

Taking a step towards the throne he immediately noticed the skeleton in grand purple robes currently staring back at him. Ainz, or was it Momonga? Was staring back at him… He didn't know how to respond…

Taking a step back, he couldn't help but notice the sudden bump coated in primarily white with traces of black and red on the ground.

Quickly snapping his head towards the figure, he couldn't help but stare in confusion…

It didn't take very long before the bump on the ground to stand up grumbling about waking up early before it moved its head to stare right at him…

"Solomon?" "Flandre?"

~line break~

Momonga blinked, staring towards the scene happening in front of him.

Blinking once again, his head immediately shifted towards the mysterious voice. Though he couldn't see the thing he was half certain the thing just shrugged in front of him… Scratch that, it definitely did…

Though he might not have seen the thing for very long, he knows it long enough that when he starts acting unusually it's probably the work of whatever that thing was… Speaking of, who are these people in front of him?

"Oh? They're your friends of course!"

Momonga would have frowned if he wasn't unable to emote through facial expressions. Though he recognised some of the avatars currently lying on the ground as some of his dearest friends, many of them he could not recognise whatsoever…

"But these aren-"

"They are, just not your friends from your universe, news flash bone daddy half of them are dead. As much as I would like to revive them, that would catch the attention of the feds and I'm not looking for that much chaos… Yet…"

If Momonga wasn't an overlord he probably would have winced momentarily at that comment… Monkey's paw, how could he be so naive?

'Oh right, whatever that thing was with its subtle mind manipulation…'

"I'd love to stay but you only got like… 5 minutes before you all get isekai'd to the new world, you don't have to worry so much about Albedo being a slut, I made her in love with you instead, so sayonara!"

"Wait! Isekai'd?! And what about Albedo?!"

Immediately reaching towards where the voice was, he found himself now staring towards the increasing amount of what can only be assumed as players waking up and staring at him…

"We all were ROB-ed weren't we?"

The blond vampire loli in red with what he believed were wings with oversized Christmas lights couldn't help wince as she asked that question, the white robed human accompanied in black streaks and red outlines only nodded in silence before he started going around waking the others up…

"God damn it ROB…"

~Line break~

Chapter 1

Momonga blinked, 00:00:01… 2… 3…

Just as what the vampire had called ROB had said Momonga noticed how he was still in the throne room instead of being booted out of the game like he should. If ROB hadn't told him he was going to be isekai'd he might have been freaking out by now.

Speaking of freaking out…

"What the hell?!" "The fuck just happened to me?!" "What's going on?!"

'Well, what am I supposed to do now?'

It wasn't as though he expected to be isekai'd to another world after all. Let alone with alternate universe versions of his friends… Was he expected to calm them all down or something? He might have been the leader of Ainz Ooal Gown but he never expected to be the ruler of Nazarick in another world…

Glancing towards the small crowd in front of him he supposes introductions should be in order?

"Everyone calm down! As you all may be aware we were isekai'd by this ROB individual."

"Actually, ROB is just an acronym for a Random Omnipotent Being lord Ain- *ahem*… Momonga…"

Glancing towards the voice had led him to the blonde vampire child, one of the few who were not freaking out over being transferred to another world. Reasonable seeing as though she heard him talk to ROB about being isekai'd before…

"Umu, then I suppose ROB is an appropriate name we shall call this thing by… As I was saying, it appears we all have gotten isekai'd by ROB into bodies that are not of our own so I suppose introductions are to be in order. I am Momonga, what are your names?"

Hearing over the various introductions, Momonga couldn't help but mellow down a bit. Then came a figure Ainz couldn't help but recognise instantaneously…

"Greetings, my name is-"

""Ulbert" Alain Odle"

Staring in disbelief, Momonga started to reach out towards the dark coated goat now in front of him. He was about half way through before his mind immediately numbed down.

Clicking his tongue he suddenly realised what just happened. [Emotional suppression] had hit.

Glancing towards the crowd he could at least make out the figures of Bukubukuchagama and Peroroncino. Had he not been an Overlord the others might have been able to make out a smile from him.

'It seemed like this ROB brought my friends here after all… Alternate universe they may be from…'

Releasing his arm was still half way pointed towards Ulbert, in an attempt to save himself from embarrassment he immediately proceeded to retract his hand towards his face before making out a fake cough.

"A… Apologies… I suppose we all would like to figure out if our powers have remained intact or not…"

Subconsciously reaching towards his inventory, he noticed most of the members did not have the ring of Ainz Ooal Gown. Though he supposed it was time to pay a visit to the 6th floor, he wasn't entirely sure if the members were able to teleport naturally yet… Better safe than sorry he supposes…

Momonga's vision briefly went white before dimming to reveal that he was no longer in the throne room. Instead his eye holes laid sight to a giant roman arena like structure, the Amphitheater if he recalls the name correctly.

A small shadow quickly grew as the silhouette of a small elf around the size of an eight year old child landed in front of him with a cheery smirk on her face.

"Ah, Lord Momonga! Mare, hurry up already! Lord Momonga is already here!"

Standing on top of a platform, Momonga observed as the other elf began to slowly descend to the surface. The first elf begins to chastise the second over his shy behaviour.

Aura, the green and blue heterochromia eyed dark elf girl dressed in white pants, overalls and a red undershirt being the one chastising Mare, the blue and green heterochromia eyes dark elf boy of the same size of his sister dressed in white overalls but with a white skirt and blue undershirt and a small green cape behind him…

He wasn't sure if the Bukubukuchagama here was interested in traps or not but the one from his world certainly was. Memories for another time though…

"Aura, Mare. Can you help me with some practice?"

Aura slowly began to drift her eyes towards the crowd behind Momonga before drifting back towards him.

"Are you sure that's a good idea Lord Momonga? A few of you could completely destroy the entire tomb by accident if you are not careful…"

"Eeeeehhhhh?!" Momonga couldn't help but exclaim.

'How did Aura come to that conclusion?! Actually, do the NPCs already know all of our abilities?'

"Oi, Chaos. Stop manipulating reality for a bit, I wanna try something…"

Glancing towards the long golden haired man in a white outfit robbed in a dark trench coat with a red armband. The pillar of dark tentacles morphed into a painfully average looking human also wearing a trench boat and a bowler hat whose face just looked off in some way. Most of which Momonga couldn't quite put into words…

"Same goes to you, you're not the only one who wants to warp reality you know…"

Chaos, the… human? Raised an eyebrow before looking back towards the golden haired man named Reinhart the Inquisitor, the members often just called him just Inquisitor however.

"Oh? So we are doing this now?"

Both parties frowned as Momonga could have sworn he was seeing electricity sparking between them.

"Seems like we are! You're on!"

Initially he planned to dismiss the two, butting into such an argument is often just begging for trouble after all. However as the two began to bicker on he began to notice cracks forming near the two in thin air, said cracks turning into shards of reality dropping to the ground.

"Knock it off you two! You're literally starting to shatter reality!"

Before Momonga could think of stopping the pair, he heard Aura's voice chastising the two for… Well, almost shattering reality… Without casting a single spell… Or ability… With no world class items…

'How overpowered did ROB make these two?'

Before the Overlord could continue asking himself questions, he noticed a gap that wasn't shaped like cracks opening nearby. Out came the familiar sight of a pale red eyed vampire clad in amethyst accompanied with hot pink streaks at the end of the top. The mop cap and bow wrapped around her head coloured similarly and faint purple frills at the end of her skirt.

Accompanied next to her was a purple tailed demon clad in an orange business suit wearing a pair of crystal lensed glasses, black gloves and shoes.

"So this was where they were…"

"See Shalltear? They wouldn't just derail the canon storyline so early on…"

Canon storyline? Did ROB also grant the NPCs self awareness? He was the one who told him he was about to be isekai'd after all, perhaps he already knew what was going to happen and told them in a similar manner to him?

"And not even two second in before I start seeing who I can only assume was Chaos and Inquisitor breaking reality…"

The vampire dressed in purple deadpanned…

"Nobody but Chaos, Inquisitor and Inkrael would be able to accidentally damage reality… And Inkrael is way too lawful to even attempt such a thing so early on…"

Speaking off…

"Don't worry, I'm not suicidal… Besides, I could just ask Inquisitor for the materials!"

"Heinrich the Inquisitor actually, he said just calling him Inquisitor would be kinda silly…"

The pair glanced towards the vampire clad in red as she corrected them. Though they have always referred to Inquisitor as just Inquisitor they suppose it is quite a silly name to keep calling him by… Especially when they would probably be inviting some natives into the tomb eventually…

Ok, a lot of things are happening at once… Momonga would probably need time to process this all, he just hopes that is the end of-

"What the hell?!"

Snapping towards the woman dressed in an orange kimono with red hair that looked like it had gone through a storm…

Actually, looking around he noticed the giant nine tailed being missing, so this was his othe-

"Why the hell am I a woman?! And what's with this hair?!"

Never mind, it wasn't judging from her reaction… At least he assumed the original form of the nine tailed beast was a woman…

Noticing the blonde vampire tilting her head, Momonga only sighed… He knew where this was going…

"You ok Hakon? You look like an evil Kushina in a kimono…"

"That's what I looked like?!"

If he wasn't just isekai'd by ROB he'd probably be laughing right now. It's something he'd used to hear when the guild was at his peak… Before his [Emotional suppression] could kick in however, Momonga remembered ROBs words from before he found himself no longer in Yggdrasil…

"News flash bone daddy half of them are dead…"

His mood dropped from those words echoing in his mind… He shook his head, he was isekai'd after all so what's to say he couldn't find them in this world? Reincarnating to another world is a sub genre of isekai isn't it?

"Ah, don't just go firing your spells just yet Ozimyy… Don't want to accidentally destroy the 6th floor now do we?"

Looking towards the source of the voice, Momonga found himself looking at Touch Me… No, Solomo- No that's not right either…

"Eh, why not? I was just trying to destroy the level cap we have Inkrael…"

The Christmas winged vampire loli tilted her head towards the grand caster as he sighed.

"Yeah, you might have pulled it off but the spell ended up also destroying the entire floor… You have Flandre's abilities, remember? Destruction can be dangerous if you're not careful…"

"Please don't destroy the 6th floor… Especially it's eyes…" Mare chimed in.

'EEEEHHHHH?!'

Momonga couldn't help but stare at the blonde vampire… She could end up destroying the entire floor with a single spell? With Chaos and Heinrich he could at least understand how they had so much power but the vampire too?

Also how did Inkrael know all of that anyways?

"I can peer into the future, lord Momonga…"

Momonga felt the [Emotional Suppression] kick in as he processed all of the information. ROB did all of that? If there was one thing Momonga was glad of, it's the fact that he got isekai'd as an Overlord… He doesn't know if he could handle the migraines caused by ROB's shenanigans otherwise…

Seeing the blonde vampire look around momentarily, Momonga couldn't help but wince. Speaking of ROB's shenanigans…

"Hmm? Where's Loa?"

~Line break~

Entoma starred towards the white caped dark skinned woman accompanied with a pair of oversized nodachi that make nodachi's look like wakizashi wearing a white buttoned shirt lined parallel to each other, white cut-off shorts and a white hat shaped like that of a cat's head whilst the human continued to chew on her burger.

Though the insectoid maid with a purple shell on top of her head dressed in a dark japanese esk maid outfit usually doesn't mind her presence, unlike Soldin who'd constantly spam out #original-work-by-soldin.

Her white mask couldn't help but show a slight frown though. Slightly peeved that she's on the 9th floor and not the 6th like the rest of the members… She doesn't know why either, she knew Loa's would most likely attempt to find something, most likely a burger, to eat as soon as she gets isekai'd to another world in Ramlethal's body.

"What are you doing here Entoma su~?"

Rotating her head towards the source of the new voice revealed a not quite as dark skinned red haired maid in a more traditional outfit and a black hat similar in style to Loa's.

"I'm just following Loa around because she wanted to eat a borger…"

Lupusregina couldn't help but nod at Entoma's statement, Loa paused momentarily to look at the two before resuming on her meal.

"Of course Loa would have done that…"

From what Lupusregina had gathered a few minutes into the isekai, she woke up in Lupusregina's body… In the tomb of Nazarick… And that she'd been turned into a level 100, like Entoma…

"Did anyone tell Sebas that Ainz wanted him to take a look outside yet?"

Entoma already knew that Ainz in canon would have already asked Sebas to take a look outside the tomb, though with the sudden reveal of ROB and his shenanigans it occurs to Entoma that he may have forgotten…

"Entoma… Ainz is still known as Momonga right now su~"

"Ah…"

Slowly shaking her head, Lupusregina at least recognised that the insect maid had a point. ROB appearing out of nowhere and revealing that they were in Nazarick's 9th floor was shocking enough but the fact that she was now Lupusregina? It might have been enough for her to lose track of what's important momentarily…

[Message]

"Hey Sebas su~ Lord Momonga asked for you to scout the area near the tomb. He noticed something off about our environment recently…"

Well, as much as she'd prefer telling the truth it's bothersome explaining to someone out of the loop of the whole ROB thing… Explaining to the Pleiades was hard enough as it was with Entoma's help, and they only accepted it as they came to the conclusion that ROB brought the 41 Supreme Beings back into reincarnated bodies of the individuals who didn't have Nazarick profile pictures… Somehow…

If the Pleiades were that troublesome, she didn't want to entertain the idea of explaining it to someone who didn't even have ROB reveal itself in front of them… At least Demigure wasn't one of them, the mental gymnastics his canonical counterpart would have done would have been mind numbing.

"Understood Lupusregina, tell Yuri Alpha that she is in charge on the Pleiades while I'm away!"

Taking a sigh, Lupusregina closed her eyes momentarily before glancing towards Entoma one last time.

"Well, I'm off to see Yuri. See you two later…"

"Bye"

Entoma announced as she waved, Loa only waving as she swallowed the burger still in her mouth. Before she could relax however, she noticed two additional silhouettes approaching the room.

A humanoid feline demihuman with grasshopper blades for limbs and a pair of antennae dressed in a princess outfit and a half elf girl with white hair on one side and black on another dressed in a creamy white sweater and black stockings.

"Nyehehe… I'm telling you Zesshi I'm going to go full Mephala route in this world…"

"How are you going to pull that off Abe? I don't recall anyone here that's trustworthy and looked like an Abeemination, other than demi human territory and that's already stretching it…"

The cat smiled, Entoma winced at that smile.

"I'm level 100 Zesh!"

"Don't call me that…"

Zeshi deadpanned.

"I could get away with it with mind control!"

Pausing momentarily, Entoma observed how the half elf went from disbelief to acceptance. As though the gears in her mind suddenly went "Yeah, it works out… Somehow…"

"Good point…"

Noticing the two enter the room, Entoma couldn't help but approach the two. Though she's met the two before it's only fair she continues her routine. After all, it's tradition!

"Welcome you two! Here's a roach!"