That Time I Got Reincarnated As A Primordial Demon

As I arrived at Silverion, I felt a wave of nostalgia hit me by staring at the familiar sight.

With my arrival, I made sure to make this a better nation as they were quite underdeveloped.

They had already established diplomatic relationship with other kingdoms and were now an official nation.

Now, here is the list of things I did when I arrived.

I made sure to lend a helping hand in the development of their technologies.

Most of the things people making isekai animes based on the medieval era do not account for are the poor sewage systems, lack of private and public infrastructures, poor technological advances, and many more.

I made sure to teach them about sewage systems.

Although my knowledge of these types of things was not vast, I still understood the basics of it.

With a little braining here and there, we were able to create a new sewage system.

I advised them to make tunnels throughout the city for the sewage system, along with creating a few drainage holes to prevent unnecessary floods.

By doing that, it was easy to bring about the idea of creating proper toilet systems.

About the agricultural system, although it was quite manageable, they were still lacking.

But of course, little old me could not just sit by and watch this go on.

I introduced them to the irrigation and crop rotation system.

When I saw that each food group was planted on different lands, I nearly laughed my heart out.

This era was so undeveloped.

Initially, they would wait for nature to do it's work (rain), but that's no way to grow crops.

With the introduction of a few farming systems such as pruning, mulching, and a lot more, we were able to improve in their agricultural aspect.

Well, mulching was not particularly necessary as the plants fed on magicules to grow.

Hence, I created a new system in place of mulching. I called this farming system crop integration.

This system was created by yours truly.

It's simple; by pouring enough magicules into a particular plant, you can make its growth faster than the norm.

If you used too many magicules to grow it, the crop might as well be called a natural poison to humans.

Also, no regular human can perform this task.

It requires an individual with excellent control over her magicules to do, so I also made it a sort of job and added it to Silverion's job list.

The payment was quite high, mind you.

It's quite rare to see a human possess such control over magicules. Hence, it was a high payment job.

In this world, crops grow different compared to back on earth.

Something that would normally take 2-3 months to grow on earth could grow in a span of a few days in this plane.

That was due to the presence of magicules.

But the concentration of magicules in this continent is quite low.

Although it is beneficial to humans as they possess low tolerance towards magicules, it also reduces the rate of plant growth. This situation is a double-edged blade.

But it was not a major problem as they could still reach adulthood in a week.

With my help, they steadily improved their agricultural skills.

I also taught them about sanitation.

This was done by announcing the whole nation of a gathering taking place at the meeting square.

This was something we built some time ago.

I made my presence known to them. I was initially against it, but what could I do in the face of a cute Alya begging for help.

I made myself a man and addressed the whole kingdom for Alya.

Kalisha: 「Why make it sound like you did it for love.」

Tch. I have another thing to say.

Sage-san has been a bad peer influence on Kalisha.

She used to be such a pure soul, but she ruined it.

Sage-san has influenced her negatively, and now, she has become a spoilt sassy brat.

Kalisha: 「I'm not sassy! And I'm definitely not a brat!!」

You may not accept the truth as it is. Women possess the tendency to deny facts relating to them.

I know, I know. It's not your fault.

You were just in the wrong place at the wrong time with the wrong person and in the wrong hands.

I blame it all on Sage-san.

「Accusation denied.」

Denial overruled!!

「*Sigh*」

Boo yah! That's Sariel (10), Wise Sage (9).

I finally broke the seal! The stagnant result has been breached.

Oh, I'm going off track. As I was saying, I confronted the people of Silverion with my exposed identity.

They were quite shocked because I had always been in secretion.

I got mad when one asshole particularly asked me whether I was the true queen.

Well, let's put grievances behind me.

I addressed the nation on sanitation and hygiene.

I managed to attract their interest with the introduction of trash cans and dustbins.

After explaining its uses and importance, I told them about the dangers of poor personal hygiene.

They understood me and began to implement the system. It made me happy to see that my efforts were paying off.

As for the security system. There were no major problems to speak of.

They had a total of 150,000 soldiers. This army had different divisions, but that is not something I will be discussing today.

Back to the matter, the army was nothing to scoff at. In fact, it was the strongest force I've ever seen.

The average soldier would be strong enough to fight on equal terms with a lesser demon.

That was quite the force considering the fact that there were a few in the army that could squarely take on a greater demon.

The supreme commander, Kenneth, was the leader of the main division and the guardian of Silverion.

With him as the guardian of the queen and the nation, who would worry about defense.

He became quite popular and was renowned as the hero of Silverion, a title rightfully deserved as he did protect Silverion before.

Ken-chan is so strong, strong enough to make Guy fight him a little seriously, which is not an easy feat.

Rose would have to take him really seriously if they were to ever fight.

Due to that, I am extremely proud of him. I raised him myself.

Although he did most of the work by himself, I still had a major role in his growth, so I'll take my rightfully deserved praise—thank you very much.

There is also a mage division that is under the direct command of Reidner.

I did make sure to give out as much knowledge on magic as I knew to Reidner.

He would then use this knowledge to teach those under him.

He quickly mastered dark magic and elemental magic.

He later on acquired spirit magic by forming contracts with a greater wind spirit and a greater water spirit.

That is quite the killer combo if you ask me.

I was the one to guide him to the dwelling of spirits.

Ken-chan insisted on coming with us, so I brought him along.

I met up with Ramires. We had a long reunion, and I told her my reason for coming.

She contemplated my request before agreeing to help with it.

I was in a good mood and decided to cook some food for her.

She made it clear that it was unnecessary, but I still insisted, so she accepted my food.

Let's just say I became her personal chef after that.

*Sigh*

Anyway, we had Ken-chan summon a greater light spirit. As the spirit entered him, there was a noticeable change.

Ramires explained that he had gained a "Hero's Egg," parallel to Demon Lord Seed.

That was really amazing.

He was the first human to ever gain one, already cementing his position as a historical figure.

The thought of him gaining more strength was scary but exciting.

The Hero's Egg would hatch if the light spirit fused with him.

I could do that if I wanted, but where's the fun in that?

With all the change that has taken place, they were already an empire.

Silverion was formed by joining three small kingdoms.

Hence, calling it an empire was no bluff.

I'm really proud of them. Little Alya has grown to be a bold and powerful lady.

Not only is she very beautiful, she is also very capable.

She is a very elegant woman who–

「Notice. That is besides the point.」

Alright, Sariel. You gotta act rational. Just breathe in.... and breathe out. Yes.

「Notice. As a spiritual life-form, the need to breathe is non-existenl-」

SAY IT AGAIN!! SAY ONE MORE FUCKING WORD AND I'M GONNA DUMP YOU!!!

「...」

Good. Where was I?

Ah, yes. I was talking about Alya.

She is already quite strong, in my opinion.

For some weird reason, Rose took an interest in her and decided to train her in both politics and in actual combat.

As it turns out, Rose is quite the political maniac as she was the only daughter of two business people who had planned to let her take over their business.

It's a good thing that she's in Rose's safe hands.

Alya possesses a very dangerous, unique skill that could even pose a threat to me.

I was quite shock to hear of it from Sage-san. If she evolved this into an ultimate skill, all hell would be unleashed.

The unique skill in person has the power to rival an ultimate skill.

『Unique Skill: Editor』. A skill that allows the user to manipulate the outcome of things to a certain extent.

When I asked her when she acquired this skill, she told me that it had been with her way before we first met.

I entered a state of complete stupefaction upon hearing this.

Apparently, she used to love the stories her mom always told her about.

As it turns out, her mom is quite knowledgeable. She knew about Velda and his group of angels.

She also knew about we primordials.

It was quite shocking as her mother had died long before I appeared in the central world.

She is a complete mystery.

Well, as I said her mom always told her stories about the world and stuff like that.

She had been so obsessed with the stories that she went on to write her own stories and had some paintings on them.

Some of her arts are already on the market for sale.

Achieving such a thing and becoming the first author to exist in this world, the Voice of the World, rewarded her with this unique skill. 

This is a very interesting and exciting story if you ask me.

As for her skill...

『Unique Skill: Editor』

[Subskills]

1. Read: Allows the user to access information from a target by observing every little detail about the said target. For example, the user would be able to accurately tell the magicule quality and quantity of a target by perceiving the aura of their target.

2. Erase: Allows the user to negate and nullify any effect affecting the user or a target. It can also be used to erase certain properties of a target.

3. All Creation Alteration: This is the ability to rewrite the composition and state of a target or substance. However, this ability has little to no chances of success against spiritual life-forms with willpower strong enough to counter this skill.

4. Law Manipulation: It enables the user to manipulate the laws of the world from either a magical or scientific perspective. How effective it is used depends on the user's abilities.

5. Will Manifestation: This ability allows the user to manifest their will into the world. If the user possess a strong enough willpower, they can make their desire a reality.

This is the authority she wields with ignorance.

It is really surprising how she never knew how to use skills yet possesses such an overpowered skill.

I don't even want to know what would happen if I were to use this skill with 『Ultimate Authority』.

This last subskill can make the user's desire become reality.

That doesn't mean that if the user wants something to be created, it would do so.

It only extends to certain events. I'm not going to explain it as it would just be a bother.

I asked her if I could analyze her skill, to which she replied–

Alya: 「You know, if you ever need anything, you don't need to beg for it.」

With the permission given, Sage-san did not even let a second pass and immediately analyzed the skill. 

I now have data on the subskills and can recreate them as extra skills anytime I want.

Sage-san already has a secret project that she has refused to tell me about.

She said that if I found out about it, I would immediately shut the project down.

The fact that a tyrant like her is saying such a thing only goes to show the gravity of the case.

I don't want to even disturb her anymore. I've lost interest.

Putting that aside, all I'm saying is that Silverion has grown to be the most powerful nation out there.

The otherworlders training under Ken-chan have gotten stronger.

They can now individually fight an arch-demon... well, there is an exception.

Aika is the exception. As I expected, Aika turned out to be a monster. She was able to fight on equal footing with Haruka, who is a demon peer, by the way.

Due to that, Haruka got depressed. She is actually the weakest of the 9 celestial generals.

That doesn't mean she is weak. She could probably give Rain and Misery a good fight.

The only two people capable of defeating Rain and Misery are Arion and Ramiel.

The rest of my lieutenants would only be able to make them fight seriously.

Well, that's enough of that.

Akane eventually agreed to work under me. She is in charge of them, meaning she is their leader.

She is the second strongest among them and is the most experienced swordsman in the group.

She is also extremely smart. She can easily form strategies to counter a given situation and has a very keen sense of comprehension.

They've all improved so much, and I'm proud of that.

Moving on, Sage-san has made some alterations again without my permissio–

「Notice. Permission was given. You did not pay attention is all.」

——— Yeah, yeah, whatever. I believe you. Just show me my stats. ———

「.....Understood.」

Name: Sariel.

Race: Demon Lord — (Primordial Demon) — 「Demon Peer」.

Blessings: Sariel's Compassion.

Title: Divine Protector:「Universal Guardian」.

Magic: Aspectual Magic, Physics Magic, True Soul Magic, Holy Magic, Dark Magic, Illusion Magic, Greater Demon Summoning, Time Spirit Magic, Chaos Magic, Primitive Magic.

Skills:

Intrinsic Skills: Possession, Universal Perception, Infinite Regeneration, Demon Lord's Haki, Material Creation, Magic Nullification, Existence Concealment.

Unique Skills: 『Wise Sage』, 『Soul Lord』, 『Ultimate Authority』.

Resistances: Pain Nullification, Physical Attack Nullification, Natural Effect Nullification, Abnormal Condition Nullification, Spiritual Attack Resistance, Holy-Demonic Attack Resistance.

I see. Not too much has changed.

That's a good thing, at least.

——— Now show me my unique skills. I hope you spare me some headache. ———

「Understood.」

Unique Skills

1.『Soul Lord』

[Subskills]

1. Soul Harvest: Souls of those weaker than the user are instantly harvested. Only individuals with spiritual attack resistance or ultimate-level skills are considered safe from this ability. Skills belonging to the harvested soul can also be acquired.

2. Soul Barrier: A barrier that constantly absorbs the soul energy of targets at a frightening rate.

3. Soul World: An evolved version of 『Soul Storage』. All harvested souls are stored in this subskill and can be converted to magical energy for the user and viceversa. Souls in this dimension are not affected by time. The storage capacity of this skill has been increased, making its storage size vastly greater than that of 『Soul Storage』.

4. Life Predation: All types of energy and life can be devoured by this ability. Once devoured, the target is taken into the 『Soul World』for analysis. The target of effect includes but is not limited to organic and inorganic objects. It also extends to skills and magic.

5. Ultra-Speed Soul Regeneration: An enhanced version of 『Soul Regeneration』. Allows for the recovery of damages affecting the soul at a quicker rate compared to Soul Regeneration.

6. Soul Manipulation: Allows for the manipulation of souls to a certain extent. The user can control souls easily and convert them into energy or perform resurrection or revival and many more depending on their level of proficiency.

7. Soul Blade Summoning/Soul Blade:『Ares』: A mythical grade weapon that ignores the material body and directly affects the soul of a target upon contact. The greater the amount of magicules infused into the blade, the higher the damage the soul takes. Using spiritrons as its energy source makes the amount of damage greater than when used with magicules.

8. Soul Appraisal: Allows the user to run analysis on a targets soul, allowing them to access information like the skills they possesses and the functions of that skill. When used on targets weaker than the user, it can also be used to read the memories of the appraised targets.

9. True Body Release: This skill is only activated once the user dies. Once that happens, the user can decide to transfer their soul to their body that is stored in the『Soul World』. The body can then be released from the『Soul World』if the user wishes to do so.

2.『Wise Sage』

[Subskills]

1. Thought Acceleration: Increases thought-processing speed by a hundred thousand times.

2. Analytical Appraisal: Perfoms analysis and appraisal on targets. 

3. Chant Annulment: Allows the user to perform magic without incantations.

4. All of Creation: Allows the user to comprehend all non-concealed phenomena in the world. The outcome of this ability depends on what the user understands and the information the user knows about.

5. Parallel Computation: Detaches regular thought processes and performs operations on any matter the user wishes to analyse.

6. Skill Domination: Allows the user to gain total control of their skill.

7. Auto-battle Mode: Temporarily possess the user's body for as long as the user wishes.

8. Skill Assimilation: Grants the user the ability to use multiple effects of various skills simultaneously to create a new effect. This ability is only limited to unique skills.

8. Attribute Conversion: Allows the user to convert an attribute to its opposite or parallel attribute.

9. All Creation Alteration: This is the ability to rewrite the composition and state of a target or substance. However, this ability has little to no chances of success against spiritual life-forms with willpower strong enough to counter this skill.

5.『Ultimate Authority』

[Subskills]

1. Ultimate Level: Any type of attack can be elevated to the ultimate level whilst simultaneously raising the user's defense against attacks to the ultimate level.

2. Essence Fusion: Fuses a pair of different essences or targets into a single object. Can be used to merge skills together, evolving them into new skills. More than one skill can be acquired from merging depending on the combination used.

3. Essence Separation: Separates the properties or essence inherent to the target into different objects. (In case the separate target has no physical form, it may dissappear.)

4. Essence Creation: The necessary essence needed for the formation of skills can be produced with this ability.

5. Law Manipulation: It enables the user to manipulate the laws of the world from either a magical or scientific perspective. How effective it is used depends on the user's abilities.

I see. There are a lot of things I want to say, but all the times I did that, I never get anything useful in the end, so I'll just ignore this.

「Notice. A wise choice.」

——— I swear I'm gonna commit suicide one day. ———

「Notice. You have already done that before.」

——— Why do I have to put up with two women out for blood? ———

This is the question I always ask myself.

But I guess it is what it is.

With that, more years passed by in the blink of an eye, opening a new era of change.

Sometimes, I ask myself, "Will this change be for the best?"

A rhetorical question I find myself asking. Yet I always expected an answer.

I hope life will continue to go on like this.