Chapter 2 – First Contact

At the moment, it has been a few hours since he had woken up. But on the other hand his body was in a vegetative state for the past 90 days accumulating dark energy since he reincarnated.

So a moment of blackout for him was approx. 90 days in this world.

How can he be so sure? It's a function of the unique skill [Great Sage].

"This skill sure is convenient until now, it had been accessing and usurping the "Voice of the World", or so it explained. But damn he didn't get any of that."

It seems that normally a convenient skill that answers any question doesn't exist.

The "Voice of the World" is only audible when the world changes, a skill is acquired, or undergoes an [Evolution].

To answer his questions, the [Great Sage] skill had been appropriating that particular function.

He hadn't heard of such an existence in his world or in Yggdrasil, but it seems to be pretty normal here. Yggdrasil had announcements about major events etc. to all players similar to "Voice of world" which broadcasts about the coming of new Demon King etc. to the world. He gott this info from Great Sage.

In any case, things like skill acquisition and [Evolution] are not everyday occurrences. When the world had recognized significant growth – and in rare cases! – it will grant a skill. [Evolution], on the other hand, transcends common sense.

Although [Great Sage] now answers any question, it is passive and lacks an ego.

If he didn't talk to it, it won't come asking questions. And that's a shame.

However, he was just happy to have a one-way conversation with someone.

Though talking to his own skill… most would call him simply delusional.

.

And so, since he had nothing else to do in this cave, he kept asking questions.

As a result, he had confirmed that he was an overlord (Undead Life-form's =Unique form).

He was already aware about his overlord persona with Lack of hunger and need to sleep etc.

The undead of this world dine on magical energy (dark energy), and thus have no need for physical nourishment. Where there is poor energy concentration, monsters and small animals serve as an alternative.

And so in this world, unexpectedly, the undead of energy deprived regions are extremely violent and strong. Wouldn't you expect regions with abundant energy to be homes to strong monsters instead?

After his death, All his equipment was transferred directly to his personal space and when he regained consciousness they were automatically reequipped back by the Great sage skill.

And that was that.

"So where are my memories stored? if not in this body"

When thinking that, he got a ＜＜Seems to be around somewhere＞＞ response.

This [Great Sage] guy seems pretty good at holding conversation. And so, he got to wondering what the effects of [Great Sage] were…

＜＜Solution. Unique skill [Great Sage] has the following effects…

Thought: Raise thought processing speed by a thousand times.

Analysis and Judgment: the ability to analyse and make judgments regarding a target.

Parallel Processing: the ability to detach thoughts and analysis of phenomenon.

Chant annulment: When using magic, the chant is no longer necessary.

All of Creation: The ability comprehends any non-concealed phenomenon in this world.

These five are your abilities＞＞

But, all of creation? Could it be that he has obtained all the knowledge in the world without lifting a finger?! Or so he thought but… In reality, depending on the information he understands and the things he knows about, additional information can be inferred.

In other words, he needs to see it at least once, but for the matters that he has seen–those he understands through this power. But, chant annulment… So after learning a skill, He do not need to recite anything?

"Will this also affect my super tier spells i.e delay in magic while casting spells?"

The answer is [YES].

With this in mind, there is no need to memorize magic.. .

Tried to see if that would work with [Great Sage], and of course, it didn't.

Why did he try? Cause Why not?.

And then he got an idea.

Could he link together [Predator]'s analysis and [Great Sage]'s parallel processing?

{{Solution. Linking [Predator]'s analysis and [Great Sage]'s parallel processing is possible. Will you link the abilities? [YES]/[NO]? }}

Of course, [YES]!

He he asked to link [Great Sage] with [Manager skill]

{{Solution. Linking [Manager]'s capabilities and [Great Sage]'s parallel processing is possible. Will you link the abilities? [YES]/[NO]? }}

[Yes]!

Can I link Undead Overlord with Great Sage.

{{Solution : Analysing Undead Overlord. Appropriate skill level not achieved. Linking not possible.}}

Ok inform me when it's possible.

He saw grass growing around. Since he got nothing to do anyways, might as well analyze it.

[Consume: grass]

A dark vapor erupted from his body and the grass was gone as the dark vapour returned back.

What is it? And so, execute the [Analysis skill] at once!

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＜＜Analysis has been completed… Hipokte Grass: Used to create ointment. Only grows in areas with abundant magical energy. If grass's sap is combined with magical energy, an energy restoration pill can be created. If the grass is ground up and combined with magical energy, an ointment to stop bleeding can be created. ＞＞

Wow! who could have known!

It's basically as if a kid playing in the sand found diamonds. Ainz repeated the above steps till there was no grass left around him.

So he quickly began production of energy restoration pills and ointment.

Though he said "He began" production, his body does most by itself so he doesn't really feel it.

Taking only a second to analyse, and three seconds to produce… after five minutes he can make a hundred of these!

Though he had no finished product to compare it to, [Judgment] ability evaluated it as a high quality product.

Can he be satisfied with these results?

And wasn't analysis compiled way too quickly?

He meant, wouldn't you expect it to take more time?

Linking parallel processing was definitely the correct decision.

Out of curiosity, he decided to cancel the link and try to make one. It took 20 minutes.

Processing time has become terrifyingly short…

He seems to have gotten his hands on a wonderful skill. While being unconscious, that is…

And at the same time, medicine is being produced. This type was not available in Yggdrasil which can restore even an undead.

What to say? He had no way to go back home. Nothing else to do around here except acquiring new skills and trying to find a way back to his Nazark.

At this time he was completely off guard. Though his skill was passive, he had been high on finally having a conversation partner (?).

And during these past days, he had not met another living thing, nor had any threat to his unlife.

Walking forward he saw an underground lake before him while he was busy devouring grass and listening to the skill's explanations!

Can I walk underwater or swim?

At times like this… [Great Sage] answers him!

＜＜Solution. Yes. Undead bodies move with magical energy. Since oxygen is unnecessary, breathing does not occur＞＞

Time for experiment…. And with that he walked into water.

First he devoured some water and analysed it to check if it had some magical properties.

Then he simply continued walking into it moving his bony arms and legs trying to swim.

He doesn't even know whether he was floating or sinking.

Rather than swimming, it felt like he's being cradled. Like slowly rocked in an embrace–a rather pleasant feeling, but…he guessed he was not going anywhere. Floating, sinking, with no indication of ever reaching the bottom. He did move forward very slowly. Maybe because of his bony hands and legs.

This could last forever, for all he knew.

This is a rather bad situation.

What to do…And then, he devised a plan!

What would happen if I predate a lot of water and then expel it like a water jet?.

Having thought of that, he immediately tested it. Nothing else to do, after all!

But that this decision would lead to a fateful encounter, that he could not have known…he was glad he had this idea. To say the least, had he gone in a different direction, this meeting would never have happened. But, as if led by fate, he went in this direction.

And so, predating enough water to fill about 5% of his stomach.

And in one breath, he released it.

＜＜Skill [Hydraulic Propulsion] has been acquired＞＞

He suddenly heard a voice in his head.

That's the first time he consciously heard it. That is the "Voice of the World".

Since [Great Sage] never starts a conversation he can't be mistaken, but otherwise it's exactly the same...

With a *Zugun!* a feeling of acceleration envelopes his body… he felt like moving as a rocket. If you had ridden on a roller without seatbelts, you could sympathize with what he was feeling… maybe.

So he used [Fly] spell to stabilise himself.

He carefully started moving forward and then saw….

"Hello little one"

At the bottom of a deep, deep heart of no one could visit, amidst despair. Veldora spends another day reminiscing in solitude.

Calamity Class Storm Dragon Veldora

Special S Class Monster.

Both monsters and adventurers are ranked A~F–all in those 6 categories.

Those especially strong have a "+" attached, those weak have a "-".

This was a guidance from the World Traveler, Free Guild head, Grandmaster Kagurasaka Yuuki.

He established this ranking system

Up until then, it was Novice – Beginner – Intermediate –Advanced; a four step system that was easy to understand.

And by the way, Advanced is C rank and above, Intermediate is D rank, Beginner is E rank, and Novice is F rank.

Thus, the number of deaths due to fighting stronger than expected monsters greatly decreased.

Those of the same rank would be a match in a one on one. Thus, fighting in a party became safer.

Surpassing A rank is the specially designated Demon king level S rank, and above even this stands the monster with the strength of a natural disaster– Special S rank.

Deviating from the standard ranking system, an abnormal existence.

At the present, an A class monster is capable of jeopardizing the existence of a country. A strength capable of inducing despair. And in the first place, what surrounds Veldora is of no concern to him.

Yet again today he thinks. That life is tedious. It had been 300 years since he lost to the Hero.

He remembered that fight many times. He was bitter, but strangely held no grudge. Fighting at a whim. Living at a whim Those who would cross his path were few in number.

For him, it was not the first defeat.

But, to have lost one on one with the same handicaps… that was a first.

Pale , crimson , jet black hair. Not too tall, a petite and thin physique. Though her face was covered in a mask, her counters revealed her femininity. A beautiful girl.

Since his eyes did not see, he could not peek at her emotions.

Is that why? Without fear or hatred, she merely dispassionately swung the sword… how regretful.

If he had broken out of this prison?

He sometimes thinks about that.

Would he complete his revenge against her? Although he did not hate her?

If he had the chance, he would want to fight again. Those were his honest feelings.

But that should not be a fight against a machine, but one where they wage their identities!

To make that girl, the Hero, recognize him and go all out. That had become Veldora's one wish.

Human lifespan is short. That his wish will never come true Veldora knew all too well.

But still…. he thoughts keep looping around the same ideas… How many years had passed?

One day,

*tapp, tappp!*

He heard a sound coming towards his direction.

Around here, due to the magical energy he released, no normal life could be sustained.

Moreover, touching a lump of magical energy that Veldora was, would be difficult even for a high class monster.

Amused, Veldora observed that being.

And that led to their encounter.

Before he knew it, to he who had abandoned his will to live, that bizarre existence became his only hope.

That meeting had to have had some purpose.

Veldora had that premonition.

One that he had not had until now.

"Can you hear me, Little One?"

Holding on to that belief, Veldora called out.

Did he say "Little One"?

"Hello Dragon-San"

(Fufufu. Fuhaha. Fuahahahahaha!)

And suddenly, laughter.

A perfect, three step laughter. Simply breath-taking.

"Interesting. Truly, stated even after beholding my appearance as I suspected, Undead species are typically thoughtless creatures. I have yet to behold one leaving their territory. And you are oozing with dark energy and loaded with magical artefacts'"

Somehow, he started telling a tale? How can he sense my magic? I'm still wearing my ring.

Solution: He can sense magic stored under predator skill

So I got him interested…? He sure is a talkative one.

Ainz wanted to proceed on favourable terms. And learn a lot from him.

"I naturally found you are rather bizarre. What are You? A named monster? A unique monster?"

"Well I am Sorcerer King Ainz Ooal Gown. I am an Overlord… What do you mean by Named and Unique?"

"Ay. Self-awareness is something impossible for an undead. Named monsters are those that have received a name. Unique monsters are those who have undergone some mutation and possess unusual powers. Rarely, such are born in areas with high magical energy density… I see, your birth was founded on magical energy drawn from myself!"

Mumu? And what would that mean?

Let's see if past world's knowledge can be used to figure this one out. In other words, from this Dragon's (assumption) magical energy flows, and thus it has become abundant around here.

And when that energy gathered, the monster that was born from it–the undead = myself? Is that it?

"Ay. In these 300 years, a monster who could approach myself had not existed. Being born from my power, perhaps You could even lay your hands upon myself!"

"Hoho… in that case, you would be something akin to my parent in this world?"

"A parent would be the wrong way to call it. After all, I do not possess reproductive capabilities. Some monsters can reproduce, and some cannot."

"Normally, lacking such capabilities would be normal, no? If monsters were born from condensed magical energy, wouldn't reproduction be unnecessary?"

("… Little one, you are surprisingly intelligent. Normally, the monsters who think are few in number, but those that possess true intelligence would be only the Majin…But that is fine, I will respond to your question. There are inferior tribes which reproduce. Goblins and orcs, along with lizardmen–to name a few. These are special among the monsters, and are commonly referred to as demi-humans. Among demi-humans, there are also those who have befriended humanity. Elves, hobbits, and dwarfs–those belonging to the fair magical races. Well, in a few words, those that support the Majin are called monsters, and those that support humans are recognized as a part of their species. These demi-humans would be the representatives of the reproducing monsters. Though to me they are no more than trash!

Next, about the Majin.

Although these have been born from magical energy, they are generally beasts and magical beasts who have evolved beyond themselves. Reproductive capabilities and true intelligence are considered their special features. Most of all, these tend to vary as individuals.

Among these, there are also the high class majin. They are the most disorganized and diverse bunch.

To conclude, the giants, the vampires, and the devils are the high class majin with the longest life span. Although these too can reproduce, they normally abstain. Hosting overwhelming magical energy, their flesh never decays. And so, there is no need to leave offspring. Though perhaps if their numbers were to decrease due to a war or some great calamity, that may change.

As one would expect, they are strong. I myself have fought with them many times, yet they are not an opponent you can face many at a time. A perfect brawling partner! All together, these are referred to as the demonic races. Of high intelligence, capable of reproduction, and laying waste to humanity– these are designed as demons by them. As for why I cannot reproduce… there is simply no need. I am a "A being perfect as one, one of the four existing dragons. The Storm Dragon Veldora!" Such is my name! "I am bound by neither time nor flesh! A mass of pure magical energy, and thus I am endless!" Fu…ahahahahahaha!)

And there he goes with his high pitched laughter… So basically, similar to me, since he has no lifespan, he needs no children! That kind of thing?

His explanation dragged on, but it was pretty useful.

Fighting high class majin for fun, Ainz wanted to free this dragon and fight him but refrain himself from doing so".

Ainz really wanted to devour this dragon and analyse his skills. Well the dragon seemed to be too talkative so Ainz simply kept this charade.

And the fact that he explained everything so politely just makes this feel good.

In the past 100 yrs no one talked to Ainz in this manner everyone eventually started behaving like his NPC's. Hence talking to this Veldora was somewhat refreshing for Ainz. Which he enjoyed.

Now… what to do next…

"Is… is that so! What an easy to understand explanation, thank you very much! Well then, I'll excuse myself!"

With those words, Ainz tried to take his leave.

"Wait. I have explained myself. Is it not your turn? Hmm?"

Doesn't seem like a situation where I need to quickly run away.

Yeah~. Let's talk about myself… but wait. I reincarnated myself into a different world! If I said that, would he even believe it?

As a undead possessing high intelligence, deceiving him would be unthinkable. Even if the Dragon was inside a barrier.

Oh, well.

Whether he believes me or not, is not for me to decide.

Having come to a decision, Ainz discussed many things that happened until now.・

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"And well, that's the thing! Ain't it strange!"

Of course he refrained from giving him any details about Yggdrasil, Nazarick and his own stats/abilities. He did talk about Sorcerer Kingdom his death and restructuring in this world stuff.

Without mentioning anything about his skills, he discussed everything from when and how he died, to waking up, and situations he had lived through.

"As I was saying this, it strangely did not seem a troubling situation at all, but, well, it was pretty bad."

"I see. You had reincarnated as I thought. What a truly rare method you used."

"Eh? Method? And hey, aren't you supposed to be doubtful or surprised?"

What's with that response? Isn't reincarnation supposed to be something really rare? From the way he says it, normal birth is beginning to seem more unusual!

"Ay. Reincarnated tend to appear once in a while. Souls with strong intentions engraved in them. Those among them who remember their past life are not all that unusual but to have reincarnated from a different world… that is rare. Moreover, you'd normally be born from a human. But to be born from a monster to a monster, and from dark magical energy to say the least… that I have never heard of. To have crossed the boundaries of the worlds, just having a strong soul is not enough. Had you not stabilized your soul in this body, your soul would have vanished. You are special."

"Is that so? I wasn't self-aware, though… So there are those in this word who have reincarnated from a different world, huh?"

"Ay. Although there haven't been successful cases of world travel, some have wandered from there to this side. A "Foreigner" and a "World Traveller"–so they are called, and they possess special intellect. Also, they tend to have acquired some special skills. Records of reincarnated being renowned for their wisdom do remain. Though there are most likely those that were never recognized."

I see. Other worlds... I do not know whether they are from my Earth, new world or Yggdrasil or not, but meeting them would not be a bad idea, for now. Not until I level up. Maybe, my friends are around here. Might also spread the name of Ainz Ool Gown in this world too...

"I see! In that case, I'll go see if I can meet any "World Traveller". Maybe, I'll find a compatriot among them."

"How could you tell that I have strong magic?"

"I have a skill strong magic perception."

"Can you teach me?"

"Ay. But, there is a condition. How about it?"

A condition… huh. Ominous, but…

"What sort of condition?"

"A simple one. Come talk to me again. How about it?"

And could it be… was this dragon just lonely? Solitude borne of strength?

And just as he thought the conversation went on for a while. He must not have had anyone to talk to in a while. Maybe he's just a big softy.

Yup. This is certainly a good deal.

"Is just it?"

"Ay. Truth be told, I had been sealed away for three hundred years. And so, I have been so plagued by boredom. How about it?"

"If you are alright with it, then I will happily accept!"

"Ay. Then it's a promise. Keep it!"

"First, try to move the magical energy inside your body."

Ainz continued his small lesson and was finally able to acquire his magic perception Skill. Of course he activated [Great Sage]! And voila.

＜＜Verified. Extra skill [Magic Perception]… has been succesfully acquired＞＞

＜＜Will you use extra skill [Magic Perception]? [YES]/[NO]＞＞

Eh?

Did I really just acquire it that easily?

Well yeah, of course, [YES].

As expected, [Great Sage] is reliable as always!

The moment he had activated the extra skill [Magic Perception], his mind was filled with information. Never, even as a undead, he had processed that much information at once. Little by little, magical energy moving along–waves of light and darkness. Having grasped all of the incoming information, he converted it into one he can understand.

And so, he can now see 360 degrees around him, without a single blindspot.

A boulder's shadow, the scenery 100 meters away: if he directs his consciousness there, he could see it.

And so…

＜＜Linking extra skill [Magical Perception] and unique skill [Great Sage]… complete＞＞

His field of vision cleared up again.

Moreover, he was not attacked by a burning pain in his brain.

That he wasn't able to do this until now is strange in itself, this is an obvious form of "vision".

[Great Sage] just might be a cheat. That certainly is not an overstatement.

If others held it, he would certainly be crying foul and report it to GM's. But the one possessing it was him. So there's no problem.

"Well… I somehow seem to have managed it. Thank you very much!"

"Oi. Do you remember our promise? … and besides, you've learned it pretty easily."

"Of course~! Thank you!"

"Ay. Could have taken more time learning it, though…"

"So… what shall you do now?"

"Umm… I think I'll go around looking for fellow world travellers and find a way to go back to my world."

They talked again and Veldora mentioned his circumstances of getting sealed on a fluke. But he did seem kind of proud of that. He also gave him information about humanity's summoned hero. Forcefully summoning souls in this world and working them as slaves.

Rather, for a dragon he seems to be extremely informed.

Anyways, just talking makes him seem so happy, and he answers any question.

So for now, the dragon and Ainz, continued their conversation.

About how he fought the hero. About how strong the hero was etc turned out- hero was a woman. With the following unique skills

Unique Skill [Certain Severance]

Unique Skill [Endless Prison]

Veldora continued with his story and then they both exchanged their names Ainz getting divine protection in exchange for Veldora from now on known as Veldora Ool Gown as an equal.

Ainz analysed the magic seal.

＜＜Solution. Unique skill [Endless Prison] has been partly analyzed. I shall present the escape method. It is impossible for flesh to escape. Physical damage wise, the chance of destroying the prison is 0%. With regards to the imaginary space escape method–the analysis proved impossible. Analysis in identical situation–imprisonment in an [Endless Prison] is necessary for analysis. Therefore, currently this is impossible. The chance of releasing a spiritual body is 1%. Should one prepare a host for the spirit ahead of time, and move there in the process, the success rate increases to 3%. At the moment, this process is similar to reincarnation. Should the affinity with the host be poor, memories and skills will all be reset. End of the report on escape methods＞＞

…Ummmu.

The chances are far too low.

Doesn't look more than flimsy film, this [Endless Prison] skill.

But for it to be impervious to physical damage….There must be some weakness to this absolute defense.

"Did hero take any damage? Any wounds or something?"

"Well asked! Our blows were well watched, and I have landed a few direct hits! But, there was no effect. [Death Calling Winds], [Black Lighting], and even [Storm of Destruction]. All are skills that cannot be evaded, and yet no effect! I gave up! It was laughable!"

And all other similar babble would end in Veldora's loud laughter.

Unique skill [Endless Prison] was definitely used to cover her body, if all outside interference is negated, no shield is necessary.

What useful skills!

Soon Ainz collector spirit lightened up but he couldn't do much. After continuing their chat for some more time Ainz gave Veldora Ool Gown an offer which Veldora couldn't refuse. And after a few explanations Veldora decided to follow Ainz.

"Kuahahahaha! Interesting! Of course I'll try it. To you, I'll entrust you my everything!"

He touched Veldora, and began Predation.

In a second, the giant Veldora disappeared from his view into the dark mist.

Must say, he was surprised he could absorb that huge body.

It seems that at the moment, his stomach was 25% occupied…

Just how big of a space has he got in there? And…

＜＜Will you begin analysis of the unique skill [Endless Prison]?[YES]/[NO]?＞＞

….[Yes]

On that day, an earthquake rippled across the world.

The calamity class monster Storm Dragon Veldora had disappeared.

The one sealed for 300 years, the living calamity.

His disappearance signifies his return somewhere in this world.

And yet, twenty days after the disappearance, the Western Saints Church declared his presence to have completely vanished.

.

.

10 Days have passed since He ate Veldora.

.

What was he up to these past days?

He was simply trying to explore the entirety of the cave and literally consuming everything magical.

Why waste these magical resources?

The grass he had collected there is mostly the Hipokte kind.

And, the glowing rocks are apparently called "Demon Ore".

Harder than steel, yet sufficiently flexible, they are a high grade material.

He had hoped it was some super rare metal… but, well, it's not like he knew whether Orichalcum, Hihiirokane, Adamantite or other legendary ore even exists in this world. He even asked Great Sage about Primal ores (Yggdrasil ones) etc but it didn't have a clue about the same.

He was now reluctant to merge his Overlord skill with Great Sage. There was no way he would like to attract the strongest of this world with him as a target practice without acquiring other unique skills or leveling up. No point in announcing the world about your arrival this early in the game.

While coming back he saw the lake again and decided to experiment more. He already had propulsion skill so he started experimenting with water using his predator skills and sage skills. ＜＜Skill [Water Current Control] has been acquired＞＞

For a second he thought it was [Great Sage], but seems to be the "Voice of the World"… To have gained a skill while experimenting.

In the end he was able to control depth, direction, and speed.

＜＜Skill [Water Blade] has been acquired＞＞

＜＜The skills [Hydraulic Propulsion], [Water Current Control], and [Water

Blade] have evolved into Extra Skill [Water Manipulation]＞＞

Wow so he experimented with water he got water. Lets play with earth?

After some tries he was able to acquire [Soil Manipulation] and [Air Manipulation]

Ainz was quite happy to make his own new set of skills.

Status

Name: Suzuki Satoru

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

Species: Overlord

Title: King Of Death

Divine Protection: The Storm Crest

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

Extra Skill: [Water Manipulation], [Air Manipulation] [Soil Manipulation] [Magic Perception]

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 {+ skills+ absorbed energy}

Phy. Atk.: 35 + {20 effect of skills if used}

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

Agility: 40 + {60 effect of manipulation skills if used}

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].

Clarification: Since Ainz wants to acquire more useful unique skills he is looking for other summons/ reincarnations. He has not been able to link Overlord skills with great sage yet as "Great Sage" is at a low level to comprehend Overload stats. Ainz is afraid that "Voice of World '' will announce his presence/ coming to every strong being present in the world, and that too early in the game. He is aware of his own powers and is not stupid. It's more like maxing up your lower level skills before going for an upgrade. There is no limit to the collection of new skills. As Ainz is the one giving surname to Veldora his progression has greatly increased.

Unique Skill: skill which can be acquired by only one person in the world.