That time when Sorcerer king reincarnated Himself?

My mother language is not English, so please be patient about the grammatical issues.

I don't own the Overlord novel or anime series created by Kugane Maruyama.

I don't own: Tensei Shitara Slime Datta Ken novel, and anime series, written by Fuse, and illustrated by Mitz Vah.

Please review: I know I will make mistakes that I intend to correct and try to learn from my mistakes and improve myself.

Thank you!

Author Note: Sorry I had to somehow actually kill Ainz to start this Crossover. So just go on with it. No OC s in this story and, if required, Ainz stomping his way forward.


Prologue

The sky was blood red and the lands surrounding Ainz were charred. He was lying on the ground. Momonga also known as Ainz Ooal Gown in this world felt like he was breathing his last breath. Of course being undead he never breathes but this was some of the last remnants of his humanity.

Till now Ainz had lived two different kinds of life/ unlife.

The first one as Suzuki Sarutoru s life was a normal one where nothing much can be said about it, nor was it anything impressive as a human. Except he regularly played a game known as Yggdrasil online, made some friends and was good at it. He had no girlfriend, no siblings, no parents left, life essentially that of an independent and single. His life was lonely and boring.

The second life, he lived/unlived as an undead Overlord, as a ruler of Nazarak along with doing his duties as a Sorcerer King for the past 100 years. Trying his best to manage his whole Kingdom. His life was somewhat content except for feeling inadequate for fulfilling his duties. Where he had to constantly delegate/ avoid his duties by handing the same to the more capable ones. Sometimes he even felt like running away similar to as he did when he created his Momon persona. He did marry Albedo as his first wife and Shalltear as his second.

His world was attacked by the World Enemy known as The Lords of Seven Deadly Sins in Yggdrasil and their support NPC's. His job was to defend his Sorcerer Kingdom. Where Demiurge thought it was all part of his master's plan who never had one. Ainz simply wished to protect his Nazark the legacy of his friends. He did make long preparations but these enemies were immune to world items. Of Course Ainz and his armies were able to kill most of the smaller enemies these entities spawned but Ainz couldn't do much and was unable to escape. He knew back in mind that his servant's will not be able to wipe out the rest of those attackers and his Kingdom along with this World will be destroyed. As a last resort he ordered his NPC's to take shelter inside the Great Tomb of Nazarick as World Enemies don't attack Guild bases.

He stood there looking out upon his world as it began to die around him, hundreds of thousands had died, mountains crumbled and lakes began to turn to moltan riverways and he couldn't do a thing to stop it, it all made him feel like giving up! Nazarick would survive he was certain of that and that's all he cared about, but what use is ruling over a graveyard.

As he looked over this decaying planet he saw Rubedo fighting with the last of her strength and was about to be hit. He quickly teleported himself in front of her shielding her from a huge blow but was consequently struck by a massive bolt of molten steel that seemingly came from nowhere, it struck his midsection and pinned him to the ground, out of the corner of his eye, coming from the dead and dying forest of tob he spotted Greed lurching towards his home, he laid there looking up as the moten rod held him to the ground and could feel all his health draining by the second; he was dying…

His respawn ring wouldn't work not if this continent was an event space as he thought it was.

As Ainz was dying he began to lament about his own stupidity for dying right now along with his inability to find a concrete way to level up/ become stronger. He blamed himself for not being intelligent or wise enough and failing his guardians. He even ignored the Voice he heard in the background.

{{Confirmed. Establishing heat resistance. Success}}

They did kill me. Using weapons. If I had more resistance.

{{Confirmed. Establishing pierce resistance. Success. Additionally, Enhancing physical attack resistance. Success}}

Damn even being an undead overlord was not enough. Well we needed at least Six legions of LVL 100 players and we had only one player and eight Level 100 NPC's.

{{Confirmed. Merging world item phylynax with Suzuki Sarutori soul. Success}}

{{Confirmed. Upgrade path for God of Death, Life, Undead created. Success}}

{{Unique Skill Achieved Overlord of death. Success}}

Ainz saw his minions/ servants/ followers getting wiped out by his enemies. He wanted to speak but he couldn't. Albedo was now at his side crying telling something to him. But he was too tired to hear.

"Run.. Take everyone back to Nazarick Now...and take care of them in my absence. I am sorry I failed.. you.. all... of... you.."

The last of his strength, was only enough to say that much. As his body turned into blue particles and vanished in Albedo's arms.

Completely unsatisfied, Suzuki Satoru died.

{{Unique Skill manager class achieved.}}

"So I am dying just like a normal Player not a Supreme Being... I failed to fulfill my guardians wishes. What kind of boss am I ?.."

{{Confirmed: Unique upgrade path for Supreme Being created. Success}}

And at that instant, Suzuki Satoru's soul linked with a spawned monster in another world.

Into a dimensional crack so small that no eye could see. His soul linked with a mass of Dark energy.

This mass was the origin of Death, demons, and to Suzuki Satoru who had linked to it, his thoughts as a base, the mass constructed a body.

What is normally is essentially an impossibility with an astronomically small chance of occurrence, Suzuki Satoru was reborn as a monster in another world.

A life so abnormal that nothing can be said about it.

Unbelievable, departing the world without ever being able to fully secure his Nazarak...

"If I am reborn, I'll change things around. Go on the offensive with a bang. Call my enemies out, and go on devouring spree . But that's no good, is it?"

{{Confirmed. Unique skill [Predator] has been acquired.}}

I have to be wise enough, no more wiser than Demiurge and Albedo? What do we call it Sage, Greatest sage?

{{Confirmed. Extra skill [Sage] has been acquired. Additionally, extra skill [Sage] has successfully evolved into unique skill [Great Sage]}}

...the hell you've been on about? The hell is [Great Sage]! Are you making fun of me?

It isn't even a bit unique!

I am not even laughing here!

So rude..

Thinking that, Ainz went to sleep.

(So this is death, huh not as lonesome as I thought.)

Those were, for Suzuki Satoru, aka Momonga aka Ainz Owl Gown the last words spoken in this world.

His mind went blank for a moment and then he looked around.

Where am I?


Chapter 1 - Let's see what I can do here

It's dark. Ainz's mind soon adjusted to the darkness and he was now able to see clearly in the dark.

"Wasn't there someone making fun of me, calling me a… sage?… no, a great sage." Ainz thought.

With that thought, Ainz regained consciousness.

His world was attacked by a World enemy known as The Seven Deadly Sins and he died in Albedo's arms.

Alright he, remembered. He was okay. No time for panic. He has to find a way back to his Nazarak. Albedo would have gotten time to escape.

Maybe… he meant what if it is too late to even consider panicking?

Gathering his thoughts, he was feeling pretty good.

He could relax a bit thanks to that.

He cast [Gate] spell but he felt like somehow it was getting blocked.

This happened only when a location no longer exists or it was blocked. Ainz was hopeful that his Nazarik was still there.

He tried contacting others using message but that too failed.

He looked around..

He was in a cave or a dungeon. with many different types of crystals, mushrooms and other fungi growing around.

He was interested in the crystals so he bent and picked one up.

Ainz point of view..

<<Activate Unique Skill [Predator]? [YES]/[NO]>>

Suddenly, there was a voice in the back of his head.

Wha… what was that?

Unique skill [Predator]…?

And… what was that voice?

He thought he heard a strange voice while talking to Albedo before, but he could only guess. He wasn't just hearing things, huh…

Is there someone? Yet, somehow that doesn't fit. More than someone being here… it's more like words appearing in his mind.

It was neither like [message] nor like Yggdrasil notification.

The voice lacked intent; like the voice that would come from a computer, calling it synthesized would perhaps be most accurate.

For now… [No!] is my response.

<<Activate Skill [Consume]? [YES]/[NO]?>>

Same voice again? [YES]?

The crystal vanished from his hand into his dark mist.

He instinctively opened his pocket dimension to check.. but couldn't find the said crystal there.

What? where did that go?

<<Solution. It is stored in the stomach associated with unique skill [Predator]. At this moment, less than 1% is occupied>>

What? A responseーーー!

But, since when have I been using that skill? I've selected [NO], after all… Did I just eat that crystal just by touching it?

<<Solution. Unique skill [Predator] has not been activated. Substances entering into the body are automatically stored. This function is modifiable>>

Huh… The responses are much smoother now. Not that it's important.

About the skill, what will happen if I use it?

<<Solution. The effects of unique skill [Predator] are…

Predation: To absorb the target into the body. However, if the target is conscious, the success rate greatly decreases. The affected targets include organic matter, inorganic matter, skills, and magic.

Analysis: The absorbed target is studied and analyzed. Craftable items can then be produced. Should many items gather, a duplicate can be produced. IIn the case of successful skill or magic analysis, the same technique can be acquired.

Stomach: The target can be stored. Items produced can also be stored. There is no storage time limit.

Mimicry: Replicate the target's appearance. The skills and abilities used by the target can also be used. However, this depends on the successful analysis and acquisition of relative information regarding the target.

Isolation: Materials harmful or unnecessary for analysis can also be stored. They will be used to replace magic energy.>>

Eh…? EHHHHHHHHH?

It's been a while since he last trembled with excitement. Somehow, he just heard of some incredible power…Such an amazing ability has never been held by him before.

Wait, before that.

The voice that hears my questions, what is this? Is there someone?

<<Solution. This is an effect of the unique skill [Great Sage]. For the sake of quickly utilizing your skills, a response function has been added>>

Great sage, huh… A title he thought was given out to spite him. To think it would be so reliable now. From now on, he'll depend on it more.

That being said, this is a pretty good situation.

This could be the end of this isolation he thought eternal.

Perhaps this "Voice" is only an auditory hallucination he made himself. Well, that would be fine in its own way.

And thus, since a long time ago, his heart has felt at ease.


Status:

Name: Suzuki Satoru

Alias: Momonga. a.k.a. Ainz Ooal Gown.

Species: Overlord

Title: King Of Death

Abilities: Unique Skill [Great Sage], Uniques Skill [Predator], Unique Skill [Overlord of Death], Skill [Manager] etc.

Resistances: Thermal Fluctuation Resistance EX, Physical Attack Resistance, Pain Perception Resistance, Electricity Resistance, Paralysis Resistance etc.

Yggdrasil Lvl: 100

Racial Level:Skeleton Mage (15) Elder Lich (10) Overlord (5) etc (10)

Job Level: Necromancer (10) Master of Death (10) Eclipse (5) etc (35)

Approximate Status

HP: 60

MP:Exceeds Limit

Phy. Atk.: 35

Phy. Def.: 70 + {20 effect of skill}

Agility: 40

Mag. Atk.: 90

Mag. Def.: 95

Resistance: 95

Special Ability: 100 + {Skills}

Total: 685+


Author Note: If you have any question or point out any mistakes do comment or msg.

Will try my best to update regularly.

Note: Unlike Yggdrasil abilities Ainz is not familiar with the skills he has gained from the transfer/ reincarnation in this new world. Hence he is inquiring about the same from the Skill [Great Sage]

Thanks to I am String Cutter for helping me proofread and editing parts of the story line.