Welcome everyone to my attempt at an Overlord/Apocrypha Crossover. I currently working on this, about to reach the climatic battle in my writing. This chapter is subject to change so I can improve its coherence with the rest of the story.

Currently I am looking for a Beta-Reader. I am to improve my writing ability so I hope you can help me do so with this story.

I thank you all for coming. Enjoy my take on Ainz joining the war of Apocrypha.

Edits: Symbols don't translate to Fanfiction for some reason. I also forgot my limitation of Ainz's revive ability.

The Throne of Heroes. A place near the root of the multiverse that houses those of great power from being reincarnated once again. From here their legends are remembered and the spirits gain immense power from the beings that believe in their triumphs. In this placed the souls of the dead equal and occasionally even above the gods that use to roam the world of mankind.

Within this are the many worlds of Heroes. They are given a land to roam and wander, to pass the time of the eternity. Within one of these world was a swamp with a tomb in the center of it. When some looked at it, they would claim it was not a tomb, but a palace that would rival the Hanging Gardens in decadence. The resident however would claim it is a tomb.

Deeper within the hollowed earth, the tomb was a masterpiece, decorated in ebony, crimson, and gold. A throne room was there, though the chair was empty caked in a phantom dust. Behind the throne and a mural, laid a door that lead into the residential office.

Inside the room was a skeleton, attentively reading books. In front of him were stacks of books, each detailing an exploit of another Heroic Spirit. The nearby bookshelf would always stay full of the heroic stories, refilling as books were taken out and received. It would give the resident information on another spirit's exploits to educate him and pass eternity within the Throne.

Currently, he was reading a tale of king Arthur. The King held all the loyalty of his knights, but decided perfection of kingship was more precious than comradery. He never bothered making ties with anyone, causing even his own wife to cheat with Lancelot. This along with a bastard son would cause his reign of England to fall and Britain would be split for centuries until the Norman conquest.

The King reminded Ainz of his own reign, except she never tried to close the gap between Ruler and Ruled. For the Overlord, he tried his best to appear perfect for his people and guardians while also making good relationships with them. As shown, if you don't bother incorporating people into your view, they will become scared and betray you. This was the first thing Ainz learned when he became the ruler of E-Rantel and carried it to the end of his days.

While Arthur did fail, Ainz would want to meet him. At least spy on he wished to spy on him. Every twitch of the hand and words made of gold were valuable for a copycat like Ainz. He was able to hold his country together just by being there, so Arthur had something going.

Ainz slowly got up from his chair and returned the book to its shelf. With a sudden glow as it replaced the volumes of a new selection.

I don't think it's ever going to run out of tales for me to read…

With a sigh Ainz took out a new volume, examining it. This volume he already read, but he was stuck here for a while.

It was about the legend of Jean D'Arc. Her legend was one of sainthood, chosen by a god in order to end the Hundred Years War. She brought France back from despair, driving back the British from almost conquering France. She fought until an unlucky event came through, leading to her capture by the British and being burnt at the stake.

Though, to think I would be reading stories from my old world.

Ainz didn't really know why he was here but did understand that he was in the Throne of Heroes. Located near something known as the Root of Existence, it was a place where heroes and villains would gather to keep themselves from coming back to through reincarnation. It was not limited to just heroes of earth, as Ainz could read stories from multiple earths and even his own world. What grabbed Ainz's curiosity was its use as a storage shed for beings known as Counter Guardians.

I'm stuck here, but Counter Guardians have chances to get out.

Ainz placed the book of D'Arc back picked up the story of Heroic Spirit Emiya from his desk. This person was a Counter Guardian through and through. Early in his life he fought in something called the Holy Grail War. Later, he came into contact with Alaya, the Human Subconscious of Earth, to save a group of humans in exchange to his eternal service. After that he served humanity and was made into a weapon for the Alaya. The issue about the story were the many of the parts redacted like some black ops. It did however, leave a significant part of his life intact, including those snippets of the Holy Grail War.

The Holy Grail War, an event where seven magi compete for an All Powerful Device. Their objective is the Root, similar to what Flunder wanted. It would be a useful tool in bringing back my Kingdom.

Uncovering the rest of the books and paper, Ainz studied the circle that was drawn in a translucent crimson. It was a summoning circle from the war. While the book was sketchy about it, the fundamentals were there. Around it though were many different scripts; from Runic to Latin and Sumerian. Each were arrange for what was a grand display for the eyes to see. Are not decoration however but were to capture divination and divine magics and force the Grail's eye to select him.

If I set this up correctly, I will capture the summoning ritual. So even without a catalyst, I can be summoned.

Ainz looked over his work. If he must be honest, it was extremely hard to believe it would work. Ainz has tried many methods, such as planar travel, but nothing seems to work. While his magic seems to have been nullified due to something's influence, something like casting wish from the other side could bring him back to life, but the chances look slim.

This construct however was the pinnacle of Ainz's magical knowledge. To Flunder's unknowing recommendation, Ainz started his studies into Super-Tier magic. He learned the fluctuations and alignments to the point where he designed new spells. It was the one magic that he could use while others could not, so be abused the heck out of it.

Finishing his examination, Ainz placed the story on next to the circle.

Maybe I should reread the story about Goblin Slayer. I could jot down some notes on how to use [Gate].

As Ainz put his back towards the ritual circle, the Grail was attempting to summon its Heroic Spirits. It selected a number like Spartacus, Siegfried, and Atlanta. The issue was its attempt to reach the Caster of Red, Shakespeare. Something within the Throne of Heroes was messing with the summoning. It thought it was impossible, but something using magic far more powerful than the world itself was forcing the focus. Unable to stop, the device was forced to select another resident.

The summoning ritual began to glow in a deep red light. Finding the resident, it moved towards the person. Going under him, it began the starting sequence to scan the Hero for copying.

Ainz was picking out a book about the Folk Hero when the ground below him started to glow a blood red. He quickly looked towards the table, finding the circle glowing with radiant power. It took only a moment before Ainz let out an evil laughter.

"It worked! It WORKS!"

Before he could revel in his achievement, he remembered his plans of action. Taking out the [Mask of Envy, Ainz placed it snugly on his skull along with his gauntlets. If he was summoned in a hostile environment like when Emiya summoned his servant, his identity would be compromised before the war even began. Ainz then grasped the Staff of Ainz Ooal Gown, feeling his power spike. If he was to face the war, he will have the Guild by his side.

A ding came in through his skull, the Grail asking if he wanted to participate in the war. Checking his gear, Ainz gave a mental command to continue. The Circle came off the ground and scanned his body.

The feeling was like a divination spell. It slowly went through his body, scanning his very essence for something. Before he would think of something else, the circle disappeared.

Well, that sucks. I'm still here.

First was the information about the current age. It was before WW3 and the pollution of the world. The shaky peace between the world powers has yet to burst and send the world to near collasp. Technology has yet to integrate completely with humans and that cars did not float.

Then came the information about the the Grail. Due to the Grail being claimed by a faction not of the three families, the grail turned on a team combat sequence to spite the thieves. Two teams of seven are made in order to fight in the grand war with a Ruler class servant to mediate and make sure the war did not incur the wrath of Alaya.

Ainz was then told what he was. He was a copy of his soul from the Throne and that the souls of all but one servant was needed to activate the Grail for one wish. He would receive the servant vessel of Caster and would need to find his many rituals, from binding himself to a Master to transferring Command Seals were placed in his head.

It lastly gave him the information about how the his new body worked, the stats and limitations as well as how much mana he needed and where to get it.

With the education process complete Ainz Ooal Gown was summoned.

What entered Ainz's vision first was a red, crimson light from the summoning. As soon as it was there it was gone, allowing Ainz to take quick glances. Everywhere he looked, there were blade like structures that made the walls with a throne in the middle, jetting out of the ground. Upon the top, Ainz could make out two figures.

Ainz looked to his sides to see 4 other people standing on top of ritual circles. Each of them were in exquisite ware and wielded arms many of his dwarves would have begged to study. That may even go for Ainz himself, since he is a collector of exquisite items.

The memories of the Grails implants came to light in Ainz's head at this moment, so he spoke the words of contract along with the other four, "In accordance to the summoning, we present ourselves. We are Servants of Red. Our fates shall be with the Magus Association, and our swords shall be as your swords."

As Ainz and his fellow servants proclaimed the words of contract. As he looked up towards the throne to take in a full look. Up top Ainz could see a man sitting on a throne with an attendant. His hair was white and tanned skin, dressed in priestly robes. Ainz could tell right away that he was a something other than human, a power radiated from him that was similar to a servant.

His attendant to the left was definitely a Servant, a buxom beauty similar to Albedo, but not quite as beautiful. She stood there like Albedo however, on guard for any attacks against her master.

As Ainz could feel a sudden connection to mana, the priest rose to speak in a fatherly tone, "I welcome you, Servants of Red. I am honored to be in your presence today. While your Masters have decided to stay hidden, they will be acting through me, Shirou Kotomine."

Shirou's eyes darted from each of the servants, analysing each of them like a collector. When he reached Ainz however, a moment of surprise showed before he corrected his face, acting like nothing transpired.

Ainz caught it though. Through his time was King, he learned a great deal about people through their expressions. It was something Jircniv would always do, staring into the person's eyes to pear into their soul and mind. Ainz though, was confused.

What was that!? Could he have attempted mind control? No, Servants, especially Lancer and Archer, would have felt and fought it. Maybe it was Divination? Something the others couldn't block but one of my skills did?

Shirou started to walk down from the throne, speaking again in a fatherly manner fit for a priest, "Before we begun, I want to build a form friendship. We should share our true names." His hand flowed to his attendant, "This here is Semiramis, Assassin of Red."

Sumerias, the buxom beauty, shot the priest a killing look before pouting, "Hmph, damn you Shirou." With a gradious turn, she faced her fellow Servants with a glison in her eyes, "Yes, I am Semiramis, Assassin of Red. I welcome you all back to the land of the living." She giggled to herself. Ainz would have laughed but his senses were heightened. These two were trying to get everyone's identity.

These two were hiding something from use. Did they do something to our Mas-

"Well, in that case I will introduce myself to!" A flamboyant uncaring green haired man in iron armor twirling his spear before performing a flashy finish. "I'm Rider of Red, the famed hero of Greece, Achilles!"

"Ahahaha!" What could only be described as a giant of a man started to laugh at Achilles. The creature, obviously mad and slurring tongue spoke, "I am Berseeerrrrker of Red; Spartacus! AHAHAHO!"

The Servant carrying a bow looked at Spartacus with content. She was a Nekomat with green, unruly hair while carrying a bow her size. She was quick and to the point, "I am Archer of Red, Atlanta."

"Then it is my turn," A deathly pale, slender man spoke up. Around him were floating disks of gold with a spear his height in hand. He spoke in a tone of being higher than everyone else, but understanding, "I am Lancer of Red. My true name is Karna."

As he finished, everyone looked towards Ainz, their eyes in anticipation.

Damn it, I don't want to give my true name. This is too fishy to stay!

Correcting his posture ever so slightly Ainz did the thing he was best at, bullshitting, "My apologies, fellow Servants. I will not give my true name." Ainz moved to look up at the priest, his face serine, but Ainz continued his best against the priest, "Umu, I will only release my true name to my master. For now I am Caster of Red." Come on, buy it!

"Oi! Thinking you're an exception, Caster?" The one to speak up was Achilles. The green hair man zoomed into Ainz's face just to stick his finger there, "We all gave our true names here! You should be doing the same!"

TOO CLOSE TOO CLOSE!

"Leave him alone, Rider." Much to Ainz's surprise, Karna was now standing behind the Greek hero, "If Caster wishes to speak to his Master first, we shouldn't stop him."

Achilles looked back to give the Hero of Charity a stink eye, but abandoned his onslaught. Even someone as fool hardy as Achilles knew when they were up a creek without a paddle.

Karna was the son of a Sun God, cloaked in his original, divine armor. The armor was given to him by the gods upon his birth, as a symbol of his birthright. While wearing it, he was said to be invincible. Something Achilles might not be able to beat unlike the poor magic caster.

While Ainz couldn't measure it in words, he gave Karna a show with a Kingly bow, "Thank you Karna. While I cannot give all of you my name, I hope this does not drive a rift between us."

Ainz took a quick look over at Shirou. The man had a great poker face. It was as good as the ones of Albedo and Demiurge would have whenever they were around him. If he could also match them in intelect, Ainz needed to get out of his hands before something bad happened.

Shirou continued to speak in a soft manner while standing up top the grand throne to speak at Ainz, "I will talk to your master later, Caster. Hopefully we can work out some form of communication." He opened his arms like a grandmaster of a circus, "I welcome you all to the Great Holy Grail War! We are currently in the Hanging Gardens of Babylon, the Noble Phantasm of Semiramis. I welcome you to explore and familiarize yourself with the masterpiece while I talk to the Master of Saber."

I need to leave. These guys did something to my Master.

Stats*

Class: Caster

True Name: Ainz Ooal Gown

Parameters:

Strength: D

Endurance: C

Agility: B

Mana: ++A

Luck: ++A

Class Skills-

Territory Creation: A

Tool Creation: A- Rune Craft

Personal Skills-

Charisma: +A

After mellannia of perfecting his craft of kingship, Ainz Ooal Gown became a ruler of the entire Galaxy, ruling as a absolute king till the end times.

Monster of Undeath: EX

Ainz carries the immunities of all undead and their weaknesses.

Devil of a King: B

When Ainz presents a deal that benefits both sides, there is an increase likelihood that the receiver will agree to the deal. Ainz was known to his enemies and allies as 'The Devil you would sell your soul to.'

Divinity: E

Ainz holds divine power as he is worshipped by his people even though he does not have any inherent divinity due to his lichedome. The rank is furthered lowered due to his belief that he is not a god, but an Overlord at most.

Untouchable King: B

Only attacks and spells of B rank and higher are able to harm Ainz.

Noble Phantasms-

Fraud for the People: B (Self)

Ainz has taken on many identities over the years before and during his rule. Many of them are being warriors such as Momon the Shield. This phantasm gives Ainz the ability to take on the abilities of a Saber Class Servant for locking himself out of his Caster Class Abilities. He is also allowed to keep his identity hidden, adopting either the warrior's identity or hiding his own.

Master of Life: C (Unit support)

Ainz has the ability to bring the dead back to life as long as they are willing to live again. He has demonstrated this power bringing back a multitude of people. It is said though he can not bring them fully back and are forced into a recovery period unless they are healed in some fashion. It is limited as the target can only be dead for 4000 years to work.

Personification of Death: EX (Anti Existence)

The true power of Ainz Ooal Gown, the personification of death. He has the ability to kill the very existence of an object and is not limited to the concept of death as given by Gaia. This means it could in fact kill the world if Ainz deemed it so. This cannot be blocked.

Staff of Ainz Ooal Gown: A

The Staff of Ainz Ooal Gown is not a Noble Phantasm, but is more of a powerful mystery similar to EA or the much weaker Tawrich and Zarich. As such it is much similar to the original that it increases the attack power of the user and grants them summoning abilities.