*Warning* This is a fanmade story created by Levelgap(me) ; The Characters , Story , Places , And other images might be destroyed and if you don't like those , Just don't read this. (You'll see : Powered Up Louise , Shalltear As The Death Flag , Quick Derailment Of Plot , OC Appearing (For ZnT Only) , and Curbstomping)

Disclaimers : I didn't own Overlord or Familiar of Zero , Overlord is owned by Maruyama Kugane while Familiar of Zero is owned by Yamaguchi Noboru. I only own the OCs.


Prologue : Supreme Human Being

The end of the great game of YGGDRASIL , That was the saddest part for any avid players of this game.

Of course it is because they waste their time of their lives just to play this wonderful game and even paid for it for the sake of having stronger items or other rare things.

But the topic now is the NPC guarding the first to third floor of this unbeatable dungeon of the guild of Ainz Ooal Gown , The Great Tomb of Nazarick.

The name of the NPC is Shalltear Bloodfallen. She was created by Peroroncino , One of the Supreme Beings , To guard this place though that player gave her a lot of disturbing traits which might become more troublesome if this NPC became a living person.

Anyway , This NPC is one of the strongest NPC of Nazarick and as such , Became the first of the line of defense in case there are intruders.

But she was of no use now because the game will be ending within some seconds. This poor NPC who dedicated it's artificial life to protect this virtual place will be gone forever after that some seconds.

But it seems like fate doesn't want it to happen.

A system alarm and a green oval shape portal appeared in front of that NPC. The NPC charge towards the portal because she or it for now , Detected that the portal is an unknown anomaly and it was 'Intruding' the glorious tomb of the Supreme Beings. The system made an error of it's judgement and mark the portal as a living hostile NPC.

So when it came towards the portal , The NPC passed through it and was then disconnected to the system ...

Now , It or now it became she , became like a puppet with it's strings cut. Her AI won't work because her connection to the game world has been severed.

She was now in a darkness , Pure darkness without anything else. She floated there for some time without any care for her surrounding. Well , She can't because she was like an empty body.

After some time , Light finally arrived through this darkness and then she just fell on the ground though she was still standing.

Her whole surroundings looks like it exploded awhile ago and her position might be the ground zero. There are lifeforms surrounding her on the distance and if not for the severing of her connection to the system , She might attack this people in accordance to the game rules.

She just stand there , Without anything else inside her. She became an empty creature.

A petite noble with strawberry blonde hair approached her with a scowl. It seems like this girl doesn't like her that much.

The girl said something while pointing her staff at her before kissing her on her lips with some hesitation.

That was when everything broke ...

Her AI looking for something to connect has been destroyed , Her mind looking for the owner has been changed , and her whole fiber of being has been changed to that of real flesh instead of a pixelated program.

In short , She became a living being.


Louise Francois Le Blanc De La Valliere , Third Daughter of Duke De La Valliere , Has been a failure since her childhood for casting a spell.

She force herself to the limit just to cast a single spell. Even if her peers jeer or insult her , She won't back down and will just push herself until she cast something and prove that she was a real noble and not just a failure but mostly , She wanted to make her mother acknowledge her.

But this time is her final chance because when she failed this spell , She will be expelled by the school and will be force to marry some random noble to strengthen their ties to other families and also , Not shame their family's name.

After chanting , Explosion occur and she despaired when it happen before her mood brightened when the smoke clears.

From there stands a very charismatic petite girl with silver hair and red crimson eyes and wears a gothic blood red dress. Though there is something odd when Louise look at her.

She was like a doll or more like an unstringed puppet who is somehow standing there without a care on the world. She can't also feel anything at her like she was ... Dead as in literally dead.

Her expression became sour. 'I summoned a doll ... Though it was beautifully knitted , It was still a doll' She thought with a scowl before going towards the doll-like girl. 'Well , It might be a golem and I needed to complete the contract before it moves?' She thought before standing in front of the girl and chanting the words to bind her and kiss her.

At that time , She didn't thought that her life will change at that moment.


Warning Warning War-

Allegiance : The 41 Su-

Ownership : Ai-

Erro-

Anything was deleted and was changed with sentience. Shalltear Bloodfallen , The NPC who was created to protect and serve Nazarick at her fullest , Has her whole goal and meaning of life changed.

Her mind registered ...

Ownership : Louise Francois Le Blanc De La Valliere of the '42' Supreme Beings

Role : Serve Louise eternally

Yes , Her whole self have been changed and her memories and her heart along with her feelings have been manipulated to obey and serve the pinkette who was known as a failure.

Louise on the other hand , Felt fear after the contract is done. She felt a chilling air through her whole body as she look at the girl who she thought it was a doll.

Even her students who are laughing awhile ago froze on their place. Even the animals and magical beasts who are on their master's side rush out or just hide , Shivering.

Shalltear's left hand was etched by the runes to bind her completely.

Louise was binded by fear.

After the deafening silence of anxiousness and despair , The vampire finally gained her senses. She look at Louise who was trembling in fear by just the sheer amount of her predatory aura.

She kneel with one knee in her front and started speaking at her in reverence. "Louise-sama ~~ , What is your will for this lowly servant ~" She said with a revering look at the pinkette.

The pinkette was lost ...

**End of Prologue**


Character Profile :

Name : Louise Francois Le Blanc De La Valliere | Human Race

Titles : Louise The Zero , New Supreme Being For The Nazarick (The 42nd Supreme Being)

Alignment : Good ~ Neutral | Karma Level : 100

Racial Level (None)

Job Level

Apprentice Mage (Level 1)

Scribe (Level 3)

Void Mage (Level 5)

Others

Racial Level (0) + Job Level (12) = 12

Ability Chart :

HP (5) |MP (90) |PHY. ATK (2) |PHY. DEF (0) |AGI (4) |MAG. ATK (1 ~ 999)[Exceed] |MAG. DEF (0) |RST (9) |SPECIAL (1 ~ 999)[Exceed]

Total : 112 ~ 2108

Description : A mage who was thought to be a failure of a mage. She was in fact a void mage but because there are no practitioners of this spell and only four can wield this spell , It was close to impossible to learn it , Making her look like an inept noble in the eyes of her peers. She was doing anything and pushing herself in hopes that someday , Her mother acknowledge her.


A/N

So yeah ... Hi all , I am Levelgap who is a lazy and a poor writer. I took this idea because really ... A lot of reviewers of ZnT or Overlord crossovers wanted this so I just tried because no one is doing it.

Hey! , Please don't get your hopes high because I am the worst writer on the Overlord section. I wasn't even paying attention to the rules xD

As you can see at our little pinkette's ability chart , She was too OP more like godly!

That was because it needs to be to bend the rules of the game itself. She must become as strong as the world item itself just to control one of the NPCs of the Nazarick mostly if were talking about Shalltear who is a vampire which can be also classified as an undead (And undeads are immune to mind affecting spells or effects)

The suggestion about Louise making one of the NPCs of Nazarick or even making Ainz become her familiar is FREAKING IMPOSSIBLE if I didn't tweak her status.

That's the reason for powering up Louise.

Second , Why do it if she can just contract her while she's still blank?

Because Louise's spell was still a SPELL which means Shalltear can still nullify it even though she is just made of pixels at that time.

Now to the third possible question that you might ask , What will happen to others if Louise casts a spell because according to her status , She was World-Tier OP.

Well , That's where the SPECIAL status comes. I don't know what it is really so I just assume that it was special in any means. Like for example , Louise can inflict damage to vehicles but leaves people untouched at the explosion. Like that , It was special in it's own way.

Also , The void magic is too vague on ZnT when I read it at the LN (Im on Volume 17 xD). She can create illusions that can't do any damage , Just pure illusion and she can destroy a fleet without hurting the people inside there. Though , It said that whatever she desires , The void will do it ... It was still vague.

So then to the possibly fourth and the final question I think you would ask , When will I update?

Whenever I like it ... You know , I am lazy and I just make this fanfic because even me is curious what would happen if Louise summoned someone on Nazarick and also ... I LOVE SHALLTEAR!

Anyway , I still need to continue my Overlord Fanfic so that's all ...

P.S. If you hate this then look for other fanfics out there ... That is , If you can really find a crossover of ZnT and Overlord with Nazarick on it (I am reading the first Overlord and ZnT fanfic xD)

Review if you like , Helpful comments are welcome and thanks for reading this!~~