Disclaimer: I own nothing! This Crossover is originally ZeroSenpai's one-shot that i'm taking up to continue it, with his permission.

First-The original work i found to be somewhat hard to read so i've made some, mostly, grammar-related changes to the story(so far).

Second-The first 2 chapters will be all ZeroSenpai work that was already released. I'm just separating it into two chapters as it's easier for me to handle.

Third-The 3rd chapter will be where i continue the story!

"Normal speech"

'Thought'

(Silent magic)

[Normal magic]

{Change of location or time}

Gate: Thus the 10 arrived there

That was the day, a day really important for the Great Tomb of Nazarick, a day that the whole world should bless, today was the anniversary of the arrival of the Supreme Beings in the New World.

They were now reunited in the legendary 10th floor, more specifically in the Meeting Room where only few, even in Nazarick, were allowed to enter.

"And this is the end of the report Momonga-sama!"-Albedo said.

"Thank you really much Albedo-chan."-Responded Tabula Smaragdina, the brain eater.

"Ah Albedo is so useful!"-Praised Punitto Moe.

"To receive praises from the Supreme Beings, this little one is honored."-She responded with a sweet smile.

"Thank you Albedo."-Said Momonga, this time she only bowed her head in respect.

"Punitto-san can you send me the results of our little experiment?"-Asked Ulbert Alain Odle with his usual poker face.

"What devilry wicked action are you planning this time?"-Asked Touch Me before Punitto could respond.

"Calm down; i think Ulbert will surely have a good reason behind his actions."-Said Momonga, searching to shatter the tension, silence fell for some seconds.

"WHAT ARE YOU DOING MY PERVERT OF A BROTHER!"-The shout came from a pink ooze and was directed to a bird man in shining gold armor that have just removed his hand from Narberal's butt.

"It isn't a problem Bukubukuchagama-sama, we belong to the Supreme Beings, our bodies, minds and souls are yours, it's a honor to be chosen by Peroroncino-sama."-Said Narberal while blushing and lowering her head.

"We will talk about this later... Peroroncino-san."-Said Nishikienrai with a dark tone, making Peroroncino's wings tremble; Momonga sighed.

"Have we finished? I would like to return to the 5th floor to spar with Cocytus."-Asked Warrior Takemikazuchi.

"Yeah i also wanted to sleep for the rest of the day."-Said Herohero, the black elder ooze.

"Ok ok, you haven't changed even in 800 years, the meeting is over you can now go."-Spoke Momonga.

"Yes, thank you Guild Master."-Responded the 9 of them together.

"Oh Touch-san Tabula-san can you come with me? It's time for the official speech."-The two of them reluctantly nodded, it was difficult to rule over an entire world, it also didn't help that there were more then 100 different races in the above named world.

Be considered beings who surpassed even gods didn't help either, a lot of people started to worship not only them but even the other guild members, that hasn't come to the new world, starting the cult of the 41 above all.

(Greater teleportation)

{Atlas, capital of the Supreme Empire}

They appeared upon the balcony of the Great Square, it was the biggest square of the capital and now was full of tens of thousands of people.

'Oh shit, there are more than before, every time... '- Momonga thought, panicking.

They decided to name the capital with the name of the first world class item they found and the only one that was stolen from them, this was a decision taken by all the guild members together.

In that moment the people noticed their presence and bowed, letting silence descend on the square; they all belonged to different races humans, demi-humans and even heteromorphic beings, all reunited under their flag, the flag of Ainz Ooal Gown.

(Message)

(Touch Me: You can do this leader.)

(Tabula Smaragdina: We belive in you come on!)

(End message)

"Good morning citizens, today is a great day for us all; 800 years ago to this day, we arrived to this world hoping to find a peaceful place where we could rest. But instead, what we found deeply disappointed us... this world was shattered and unbalanced, entire races enslaved because they were considered inferiors, heteromorphic beings and demi-humans were killed because they were considered nothing more than monsters."

"These are the reasons why we have decided to change this world, to stop discrimination and poverty, to give the chance to anyone to be great, to decide their own destiny and not to have their fates sealed by their birth. This is why the Empire exist's, to give freedom to its citizens and not to deny it. All hail Ainz Ooal Gown!"-Momonga concluded; a moment of silence and then a cheer rose, and a chant composed by thousands of voices started.

"All hail the Supreme Beings! All hail Ainz Ooal Gown! All hail the Supreme Beings! All hail Ainz Ooal Gown! All hail the Supreme Beings! All hail Ainz Ooal Gown!..."

"Good job Momonga-san."-Whispered Touch Me.

"It has been beautiful."-Said Tabula.

But, before they could leave, a scream of fear rose from the square. They turned and watched the scene down below. There were strange knights, with unfamiliar armors, that were attacking the citizens.

"Touch-san..."-Momonga couldn't finish, as Touch Me already jumped down in the square.

"DEATH KNIGHTS, GUARDS WITH ME! FIGHT THE INVADERS!"-He roared, raising his legendary sword toward the horde of enemies.

'As expected from Touch-san' the two players thought.

"Tabula-san, please contact the others as we will have to discuss what happened here."-Momonga said.

(Message)

(Touch Me: Momonga-san, i discovered the origin of these knights, they are coming from a strange gate like structure. There are also demi-humans with them; i stopped their advance and we also took some prisoners. They seem to be generals or someone high ranked but we will need a translation item to even speak with them.)

(Momonga: good job Touch-san, we will leave them to Neuronist; come back with the prisoners and leave the Elite Guards to control the gate)

(End message)

"Change of plans Tabula-san, gather everyone for an important meeting."-Momonga said.

"Yes leader."-Tabula replied.

{Later in the 10th floor in the meeting room}

"Before we begin, i'm sorry to disturb all of you another time today."-Momonga bowed his head.

"Do not apologize Guild Master, it's not your fault."-Said Ulbert.

"Yes, yes, we will always answer to a convocation from you Momonga onii-chan."-Spoke Bukubukuchagama. While Peroroncino muttered something about a punishment.

"Well let's begin; as you all should already know, a strange portal appeared in the middle of the capital. Knights and demi-humans exited from it and attacked us. For all that we know, it could be a gate to a different dimension or planet; we will have more information when Neuronist end'd her... his... its job!"-Momonga concluded, his passive activating that calmed him down.

"Well then we have only to wait."-Punitto Moe said, rising from his seat.

{Later in the 7th floor}

"Did Ulbert-sama call the seven of us here?"-The seven evil lords asked.

"Exactly so."-Demiurge responded.

"The Supreme One awaits us, come with me."-He continued; after few corridors they arrived to the Great Hall of the 7th floor where Ulbert was waiting; they deeply bowed.

"You may rise my dearest."-Ulbert spoke happily, the evil lords looked at each others before rising.

"Well i don't want to explain everything, Demiurge will set out the details later. In short, a link between our world and another one has been created by an unknown event. But one thing is sure: we have taken great offense from this action and they will pay! Prepare the Abyssal legion, there is another world to conquer!"-Ulbert proclaimed.

"Yes Ulbert-sama!"

{10th floor Peroroncino's room}

In the darkness of the Lord of Skies' room laying on the bed there were 9 figures, one was Peroroncino, the others were too hidden to be seen, a large grin formed on his face.

"Another world eh? Maybe there i will find the final piece to complete my top secret project: the perfect harem; kukuku..."

{5th floor spar area}

"Come on Cocytus show me all your might!"-Spoke Warrior Takemikazuchi, while deflecting two of Cocytus' swords.

"Yes Warrior Takemikazuchi-sama!"-Responded the blue giant insect, launching another attack.

"No Cocytus-kun, don't forget how you have to call me while sparring!"-Takemi shout to him.

"Yes Takemi-sama!"-He responded, stopping Takemi's katana and making him take some steps back.

"Good indeed Cocytus, no mercy for the invaders of the other world!"

"Yes Takemi-sama, the invaders will tremble in front of the might of the Supreme Beings' Creations!"

{10th floor banquet hall}

"Do you need anything else Herohero-sama?"-Asked Solution Epsilon, one of the Battle Maids Pleiades.

"No, i'm full now Solu-chan."-Herohero responded.

"Should i escort you to your room for a sleeping session?"-Asked Solution.

"No i don't feel tired, it's more like excitement."-Explained Herohero.

"Exicetment my lord? It is because of the gate?"-Solution questioned.

"Yes indeed, i would love to travel there and explore the unknown once more, do you want to come too?"-These were his words, this was his desire and for Solution Epsilon, it was a absolute order from her creator.

"Then allow this creation of yours to come with you Herohero-sama!"

{8th floor Magnum Opus temple}

Tabula Smaragdina was in front of the temple, he took a deep breath and knocked on the door, some seconds of silence and then.

"You can come in Father."-The swwet voice of Rubedo welcomed him.

He opened the door and proceeded inside; in 800 years this was the seventh time that he had visited her. This was because he was scared, even between the guild's members, he was the only one that knew what was written in her settings and the fact that now those words were a reality scared him.

"Good afternoon Rubedo, how are you?"-He began.

"I'm fine, thanks for the consideration."

Rubedo was a child that seemed to be 12, her long black hair descended down her back and her grey eyes were shining in the half light of the room. She was actually wearing her usual pink kimono with flowers printed on it; obviously this wasn't her real form, fortunately he programmed her to use it only when it was necessary during a fight.

"And if i can ask, what brings you here Father? Usually the Supreme Beings avoid the 8th floor."-She asked.

'shit! It's now or never, come on ask her!'- Tabula thought.

"I have thought about you a lot in the previous years; you know, our relationship and that of your sisters."-He began, watching her reaction. For the first time since they came to this world, she seemed to be speechless.

"Well i came to the conclusion that i didn't spent enough time with you, i haven't been a good Father for you and i regret it; so i want to ask you, do you want to come with me to the other world?"

A single solitary tear descended on her face .

"For all this time i thought that i was wrong, that i was a mistake, a failure that you wanted to hide away from the other Supreme Beings, that my own existence brought shame to your name..."

This time was Tabula's turn to be shocked.

'yeah, now i feel like shit', he advanced and gently hugged the little trembling body of Rubedo.

"You are my younger daughter, i could never think of you as a failure, my beautiful and perfect creation."-He whispered in her ear.

"But i'm different, i'm not intelligent like Albedo and i don't have the useful powers of Nigredo; i'm wrong."-She said while sobbing.

"No you are not wrong, you are different because i wanted you to be different. Even if the world hates you, i will still love you. That's because you are an extension of me, and that is the only thing that matters."-He concluded, patting her head.

"I want to see the outside Father, so i will come with you to the other world."

{6th floor with Bukubukuchagama}

"Aura! Mare! Chagama-chan is here for you!"-Bukubukuchagama singed out, immediately a thin figure jumped down from a tree.

"Welcome Bukubukuchagama-sama!"-The joyful voice of Aura rang out .

"Ah, you are fast as always... where's Mare?"-Bukubukuchagama asked.

"I'm right here Bukubukuchagama-sama!"-Mare responded from behind her, he was panting heavily, like he had ran a lot to get there.

In 800 years their bodies had developed and even she could not allow them to wear their previous clothes anymore. Now the twins looked to be around their 20's; Aura became a beautiful woman with long blonde and rebel hair, Mare developed into a gorgeous man with short blonde hair and a smile that could make every woman fall for him.

"You two are just perfect... ah, how could i have imagined that you two would become this beautiful..."-The twin's cheeks reddened at the compliment.

"But today i have great news... we will go together on a new adventure!"-The pink ooze yelled.

{10th floor Sebas' room}

"Are you waiting someone Sebas-sama?"-The woman in the maid uniform asked.

"Yes Tsuare, Touch Me-sama said that he would come at 18:00"

The maid frozen, for her who wasn't born in Nazarick, found that it was actually difficult to speak with a Supreme Being. One wrong word and all in Nazarick would become her enemies. Besides, Touch Me was also her benefactor; he allowed her to be together with Sebas and used a rare item to change her class to an Immortal Human. Even if he said that it was a simple item, she thought at that moment, she has had a baptism from him.

She turned toward the clock, it was 18:05; immediately a knock echoed in the room; Tsuare instantly opened the door and bowed.

"Good evening Touch Me-sama."-She greeted the Supreme Being that just entered.

"Good evening."-He responded, watching her for an instant.

"Welcome Touch Me-sama."-The butler of Nazarick bowed deeply.

"Sebas, i'm sure you are aware of what happened this morning...?"-Touch said darkly, a shocked expression appeared on Sebas' face.

"The massacre of the Great Square."-Sebas declared.

"Exactly and for that reason is why i'm going through the gate, to bring justice!"-Touch proclaimed, waiting for the decision of his creation.

"Then i will come too, after all it's my duty to protect the Supreme Beings, especially my own creator."-Sabas said, bowing one more time.

"Ehm."

The creator and creation turned toward the source of the sound to find out that it was Tsuare.

"S-supreme Being Touch Me-sama p-please allow me to come w-with you and Sebas-sama, i will not cause troubles, i-i promise, i will do everything you ask me! Please!"

She knelt making her head touch the floor, Touch Me watched her then turned toward Sebas, he seemed to be shaking in anger... no, it was fear.

'he expect me to punish her? Even after 800 years they haven't changed...'

"Well as long as you will obey me then you can come."-He decided.

Sebas was relieved and Tsuare was too happy to speak.

{9th floor Pleiades' dining room}

"Has he really asked you to come with him Solu-chan?"-Asked an enraptured Lupusregina.

"Yes, he watched me and said that it would be an exciting experience."-Solution responded while consuming the arm of a human.

"You are lucky Solution, you will be able to see how the Supreme Beings will conquer the other world."-Yuri spoke with a smile, suddenly the door opened revealing a tall figure in a ninja outfit.

"Nishikienrai-sama!"

They rose from their seats and bowed.

"There's no need for this, i will be fast."-He spoke making them rise.

"Narberal, would you like to come with me to the other world?"

The mentioned maid's eyes went wide open, the silence filled the room for an instant.

"If you don't want to it's not a prob-"

Before he could finish the maid bowed.

"It would be a honor, my creator."-She spoke.

"You girls can come too if you want, you know...the more the merrier."-He stated, shocking the other Pleiades that bowed too.

"We will gladly come with you Nishikienrai-sama!"

(Atlas paladin's academy Touch Me}

High in the sky of the capital there were flying islands, they were considered the pride of the empire and were also known as the 'flying realms'.

On one of these islands there was a structure, the paladin's academy named Touch Me. It was founded by the Supreme Being himself and is considered the best academy for a swordsman; the standards were really high and only few exited from it intact.

The headmistress was a servant under the direct orders of the Supreme Beings, this rose even more fame of the academy.

The mentioned headmistress was currently in her office, finishing the documents she had to sign. She was a human with a gorgeous body and long blonde hair. In a corner of the room there was her sword, it is about the size of a bastard sword, complete with a sheath. The blade is as black as the night and the grip is described as beautiful, inlaid with a black sapphire that is embedded into the pommel that is like a brightly burning flame.

Watching it, she remembered the time when she was about to die during the third demonic invasion and her blade tried to consume her when she was weak. That was the moment when a Supreme Being descended to rescue her, he healed her and helped her to control the sword. She remembered his words well;

"If you want to draw and control a demon sword, you should have demon blood in your veins too, to achieve power a sacrifice is always needed".

And she did as he said, she became a half-demon and gained immortality in the process; after assisting to the show of might of her savior, she decided to repay him with her servitude.

A dark, oval gate opened through time and space and a figure stepped out, he was composed entirely of a plant known as Death Vines. He also wore a priest robe over his frame.

"Punitto Moe-sama."-She greeted him.

"Oh Lakyus, i hoped to find you here, busy as always i see... don't you think its better to take a break?"-The Supreme Being spoke with a calculating tone.

"As much as i would love to, i can't simply leave my duties behind."-She said sighing.

"I wanted to ask you if you would like to come with me to the other world, i can always leave your job to someone in Nazarick temporarily."

It was a great opportunity, speaking clearly, she has always been curious about the Supreme Beings, as they didn't like to show themselves too much and their minds were considered to be incomprehensible realms; this was her occasion to know more about them and also become closer to her savior.

"Then i will follow you Punitto Moe-sama, after all you already did a lot for me and i want to repay your kindness."-She declared.

{10th floor Momonga's room}

Momonga slowly opened the door, hoping to find a bit of peace after that hard day, but unfortunately for him, there was already someone in the room.

"Ah Momonga-sama! You are finally back!"

To welcome him there was a woman with heterochromia, for both her eyes and hair, one side of her hair was silver, while the other half was black. Though she looked like a teenage girl, her appearance has not changed for a long time, her name was Zesshi Zetsumei, the trump card of the Slane Theocracy.

"Zesshi-san, what are you doing here?"-He asked.

"I was actually waiting for you! Did you think i would let you go through the gate without me?"-She responded.

"It doesn't matter how much you try, you can't have it from me."-He stated.

"True we have tried a lot of times, even with your false human body you can't give me a heir, but maybe in the other world we can find something to help your... situation."-She said with a shining smile.

{Flashback; 800 years before; Slane Theocracy}

The 10 Supreme Beings advanced in the deep of the Great Cathedral, the sounds of shouts and explosions could be heard from behind them.

This was the day when the supremacy of humanity ended, if they reached the crypt where the 'relics' were actually hidden, the war would come to an end.

"Its strange there aren't any traps here."-Ulbert said.

"A trick?"-Punitto guessed.

"No, this is their last line of defense."-Takemi stated, they all stopped when they heard steps come from the corner in front of them.

"Good evening invaders, isn't this a good day for you all to die?"-The new comer spoke with a feminine voice.

"Show yourself!"-Momonga said with a cold voice.

"As you wish...Undead Emperor."

She advanced toward them, the only word to describe her was beautiful, a rough beauty that could be rivaled only by Albedo or Shalltear.

"Here is where you stop!"-She said, drawing out her scythe.

"Such an insolent human, i will erase you!"-Ulbert declared, casting his magic. But before he could do anything else, he was stopped by a skeletal hand.

"I will do it."-Momonga stated surprising everyone, even Zesshi.

"I will show her that Ainz Ooal Gown knows no defeat!"-He summoned the Staff of Ainz Ooal Gown to his right hand.

{After the battle}

The giant scythe flew away and she fell on her knees.

"How... how can i lose like this? So pathetically..."-She whispered, watching up toward the undead that she should have killed.

"What's your name?"-The undead asked.

"Zesshi Zetsumei..."-She responded.

"Absolute death?"-He questioned, her eyes widened.

"How do you know... the language of the Six Gods? It's a secret of the theocracy..."-She asked hoping for an answer.

"I know it because it is my language too."

That shocked her even more, 'could these beings really be from the same realm as the Six Gods?' she thought.

"Now, Zesshi Zetsumei, submit under us! For killing you would be a waste, taking into account your strength and beauty."

These words make her come back to reality.

"B-beauty? How can i, a half elf, be considered beautiful? I'm a weapon, i was born to be a weapon and nothing more."-She stated.

"You are not a object! No one who can think by himself is a object! It doesn't matter what the others expect from you! You are free and no one has the right to negate you that freedom! Do you understand Zesshi Zetsumei?!"

He now was angry, even if his face couldn't show emotions, his tone was clearly full of anger, not against her but against someone else.

"I will now repeat myself, do you want to be free under our rule? You are no more a part of the theocracy! Respond by following your heart and soul!"

And then she was broken again, her mask shattered into pieces by an undead, a creature who should hate her only for the fact that she was alive.

Her entire body trembled and tears descended on her face, she felt a hand on her shoulder, it was cold, but at the same time, it was a soft and gentle touch; she looked up, directly into those two red points that were the undead eyes, and her heart stopped.

"Its better for you to take responsibility for what you have done."-she whispered more to herself than the undead before her.

"I... shall accept your proposal."-She stated while drying her tears.

"What is your name?"-She asked shyly.

"Momonga."-He simply responded.

"Then Momonga-sama, you will be mine and mine alone!"-She declared with more confidence and pride in her words.

{End flashback}

"You know, we can simply use [Wish Upon a Star] to make you pregnant."-Momonga offered.

"I already said no, it wouldn't be the same..."-She stated, a smirk grew on her face.

"Even if we can't have it for now, it doesn't mean that we can't have fun."-She spoke with a lustful voice, as Momonga gulped, while she removed her dress.

"Now come here Momonga-sama~"-She giggled.