"Overlord Plus Ultra!" - In this crossover, Heroes and villains? Quirks? Confusion fills Momonga's mind as he awakens in a strange new world following Yggdrasil's shutdown with no Nazarick. Now, alongside his eccentric creation, Pandora's Actor, he must navigate a society where power is revered and controlled in ways he's never seen before.

Hello Readers! I noticed that there were not a lot of fanfiction crossovers in Overlord compared to other series so I decided to put my writing skills to the test! Also since this will crossover with MHA, feel free to message me or write a review If you have any advice concerning the character's personality or the events. It's been a while since I've caught up on the MHA anime so I'll try my best!

P.S. - Part of this chapter is inspired by the Overlord Light Novel Itself! So if you like this chapter just know a lot of it was from the light novel so go out and support the author by buying the Volume 1 book. Anyway, here's some info to help you understand some of the symbols and stuff in the story.

ALSO, THIS CHAPTER IS A PROLOGUE SIMILAR TO OVERLORDS PROLOGUE SO SKIP IF YOU WANT BUT IF NOT THANK YOU FOR READINGG!

{Location change, POV, Time, etc.}

"Normal Speech"

'Thoughts'

[Spells/Items]

Prologue

{30 minutes before the shutdown}

Sitting on a throne crafted from solid obsidian, towering up to the room's ceiling, was Momonga, the Guild Master of The Great Tomb of Nazarick.

Draped in a black-purple robe adorned with all sorts of bling, the Overlord exuded an air of respect and authority.

Right now, our favorite Overlord was digging into the Tombs' upkeep costs, just like any Guildmaster would. Keeping track of the cost of the traps on each floor, the floor area effects, the security, and so much more. The list was astronomical In size, but even after 12 years of playing Yggdrasil, he never missed a beat in meeting those maintenance costs.

Giving it a final once-over, his avatar relaxed, slouching over as he closed the tab.

"Finally done.."

For the past few months, Momonga had been dealing with even more stress than usual ever since his old boss got promoted and replaced by someone less capable. Always taking on the blame and extra work, he found less and less time to keep the guild in check with all the extra tasks he had to do after hours.

But even as his digital and real body took a hit and his health bar dwindled, he religiously made sure to never skip the tomb's maintenance costs. Even on sleepless nights when he would get chewed out for no reason by his boss and had to work overtime for hours on end.

As long as The Great Tomb of Nazarick still stood It was all worth it In the end.

Now, looking up from his in-game throne, you could see pillars lining up on both sides of the throne room, chandeliers spaced out in the middle, a red maroon carpet leading from the door up the steps, and flags of the Guild Members evenly hanging on each side with the main Guild flag behind the throne.

From the floor to the detailed designs on the walls, the passion, time, and dedication poured into every nook and cranny showed. Anyone in their right mind would gaze in amazement at the absolute masterpiece the throneroom was but our dear Momonga could only feel a mix of sadness and contentment as he gazed upon the room.

Though it took less time to design everything compared to the creation of the Staff of Ainz Ooal Gown in his hand, the months of hard work and sleepless nights spent in the throne room translated into its stunning beauty.

"I remember when the Throne room was filled with every member of Ainz Ooal Gown, Ulbert and Touch-me arguing over nonsense topics, Peroncino talking to the other Guild members about his fetishes, Shijuuten venting about his student's Idiocy, and even Buku trying to flirt with him…"

'Uwah, maybe that last part I should've left out' Momonga thought embarrassingly and shook his head.

Looking around the room once more, eyes fixed on the flags of his Guild mates, Momonga raised his right hand and pointed at each one, moving from left to right.

"Touch Me, Shijuuten Suzaku, Ankoro Mochimochi, Herohero, Peroroncino, Bukubukuchagama, Tabula Smaragdina-"

He kept going, finishing the very last of their names.

"-Warrior Takemikazuchi, Variable Talisman, and Genjiro..."

Reciting each name took less than a minute as they were deeply engrained into his mind but even then each time he named them, a deep feeling of sadness crept into the back of his mind.

"It was fun, wasn't it, my friends..." Momonga spoke to no one in particular, letting his head hang down a little.

Looking to the corner of his screen he noticed that 15 minutes were left until the shutdown and realized that no one else was coming. While HeroHero-san had joined him for a little It pained him, even more, to realize he wasn't even going to stay for the shutdown. But no, he knew that real life had more precedence than a 12-year-old game, right?

No. He knew that It did but his selfish side couldn't understand nor want to because how could he? How could his friends not even at least show up to the end of Yggdrasil where all those memories of adventures, raids, pking, and moments of pure joy had been made?

Even Touch Me, Pero, Buku, or even at the very least Ulbert-san showing up and opening those doors with wide arms would cast aside so much of his sadness but he understood that deep down in his heart no one was coming...

With only 15 minutes left, he decided to leave the throne and pay one last visit to the Mausoleum.

Activating the Ring of Ainz Ooal Gown, he disappeared from the throne room, leaving Albedo and the Pleiades with the last memory of their Master fading away forever.

{The Treasury}

{15 Minutes before the shutdown}

Teleporting into the Treasury, Momonga looked around with indifference.

Lying in the center of the room were scepters of intricate design, gloves made of an unknown material with claws at the tip, a glowing snowglobe emitting an otherworldly red, a medieval hammer with an adamite hilt, small gold animal figures with gem eyes, and millions more piled up to almost 30 times the height of an average person.

While it might seem bad to leave such beautiful pieces of art in a pile, just one look up along the wall and you'd see the plain truth—there was no more space.

"[Fly]," Momonga muttered, passing by the item pile and landing softly before a 2-dimensional shadow.

"All glory to Ainz Ooal Gown."

In response, the jet-black door displayed a series of words: "Ascendit a terra in coelum, iterumque descendit in terram, et recipit vim superiorum et inferiorum."

Staring at the words, Momonga took a second to remember. It had been a while since he last visited this deep in the treasury.

"By this means you shall acquire the glory of the whole world, / And so you shall drive away all shadows and blindness."

Reacting to the words, the shadow compressed into a small point and vanished.

Looking inside, a long tunnel awaited, contrasting the chaotic display of items before. It resembled a museum.

"I'm going in," Momonga said to himself.

Walking past the weapons hall, broadswords, greatswords, flamberges, scimitars, patas, kukris, claymores, short swords, sword breakers, one-handed axes, two-handed axes, one-handed bludgeons, javelins, bows, crossbows, and even more, Momonga reached a rectangular room after about a hundred meters and thousands of weapons.

The room looked like it might have hosted guests with a table and sofa set in the middle, but it was more decoration than anything, leading to the true treasury.

Walking past, Momonga fixed his eyes on the only route forward, and the atmosphere changed. If the previous room felt like a museum, this one was more like a tomb.

The height was about the same, but the dim interior extended further in. It was hard to tell due to the angles, but it looked like a large niche was set into the wall with something placed within it.

"The Mausoleum," Momonga said out loud.

Walking further, he almost passed by when he noticed a certain NPC standing next to the entrance.

Pandora's Actor, a level one hundred NPC he personally designed and placed in charge of the Treasury. His talents lay in disguise, capable of copying forty-five forms and even their abilities, albeit at eighty percent of the original's potency.

"Maybe I should bring Pandora's Actor with me inside. It would be depressing to stand by myself in the end."

"I think the command was... Follow?" Hearing those words, the NPC turned towards him.

Continuing his path, with Pandora's Actor a couple of steps behind, Momonga, after a few minutes, had finally reached his destination.

"Uwah, I'm sorry, my friends. I couldn't make these look better."

Looking around one could see crudely made statues of his friends. Each had some deformities since he couldn't fully copy his friends' character designs. To save on data crystals, he spent money on premade skins that copied their designs, but they ended up with odd features, big heads, long arms, and non-proportional heights.

Realizing just how crudely designed they were his embarrassment overshadowed his sadness if just for a second.

Continuing to walk more down the hallway he stopped at the last four empty spots and stared at his own.

"Here is where I was gonna rest with the rest of my Guild members."

Momonga said out loud, although he noticed a sad glint in Pandora Actors eye hole If that was even possible.

"Even my mind is playing tricks on me... Also, even if this would be my resting place, no one would be left to even put me up there... how funny..."

A laugh, hollow and tinged with pity, escaped his lips as his gaze drifted to the clock in the top right of his view. Only a few minutes remained.

"Twelve years of hard work, memories, and passion... gone just like that."

His eyes slowly shifted to Pandora's Actor, the creation that stood as a testament to those years. With no one to confide nor vent in over the past four years, he had found himself speaking more and more to the NPCs, hoping, no, yearning, that one day they might respond, that he might not feel so utterly alone.

But they never did. They only moved in their predefined patterns, their actions devoid of any true life, mere echoes of programming. Conversing with characters composed of nothing more than data felt absurd, perhaps even a little insane. Yet to him, it was like talking to old friends who listened in silence.

And in recent days, it had almost seemed as though they truly were listening. But deep down, he knew better. It was just his mind playing tricks on him, a cruel jest born from the depths of his isolation.

"Maybe I should say something to Pandora's Actor," he murmured, the words spilling out unbidden. "Even if he's just data, I should say something... anything...

He turned fully toward his creation, awkwardly raising his right hand to rest on the NPC's shoulder. The gesture was clumsy, an imitation of the scenes he'd seen in anime and dramas, a far cry from how real friends would act.

'Uwah, this is so embarrassing!'

He mentally cringed, his embarrassment palpable as he glanced at the clock once more. Only two minutes left.

"I'm sorry I left you down here..." Momonga whispered, though the words were meant more for himself than the NPC.

"A memory of my past, left to rot in a treasury..."

"I should've been a better person... a better GuildMaster... a better friend…"

As the final seconds ticked by, an unexpected wave of emotion washed over him. On impulse, he pulled the doppelganger into a hug, closing his eyes and letting all his pent-up sadness and frustration flow out in the form of silent tears behind his Virtual Reality headset.

Then, he felt it, a subtle shift, as though he was being hugged back.

For a brief moment, he thought he had finally lost his grip on reality, that his mind had shattered under the weight of loneliness. But instead of pulling away, he hugged back even tighter, with more intensity than he ever had in his life.

Even if he couldn't feel it physically, his mind could.

And so could his heart.

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