Why Did I Have to Enroll

Evening had fallen.

However, since night didn't exist in this world yet, Ban Yu-won could only track the passage of time by the clock.

[Absorbing Void Pressure 16.]

"Oh, it increased by 1 again."

All this time, the Golem - World Giant (since we can't call it Ymir) had been continuously attacking Ban Yu-won with Void Pressure, and at some point, the intensity of the pressure had started to gradually increase.

The intensity that started at 10 had reached 16, which showed just how long his standoff with that thing had lasted.

Let me explain about this Void Pressure.

Basically, it's a volatile concept like the magic that Ban Yu-won casts.

It reveals its power the moment it reaches its target, and once it exhausts all the power contained within, it disappears.

However, when it accumulates and becomes compressed, that is, when its purity increases, it gains permanence.

The various concepts that Ban Yu-won had previously collected from the Tower of Babel had also gained permanence in the same way.

"Should I start absorbing now?"

"I don't think I can do it all, and the ice attribute is already at its limit, right?"

"Yeah."

How long had they been fighting? About 5 hours?

During that time, the ice magic absorbed from the Frost Giants had increased his elemental magic depth to 150.

Although he had achieved a massive 50% growth, after surpassing 140, the growth had slowed down, and now it showed no signs of growth no matter how much he absorbed, confirming that there was definitely a limit to repeatedly absorbing the same concept.

'I already confirmed with goblins that you can't absorb concepts from the same monster beyond a certain threshold...'

The same applied to Life.

When he first absorbed the Frost Giant's concept, it had increased by 2 to reach 462, but now after defeating well over two hundred giants, it was at 499.7.

Once it exceeded 480, the efficiency dropped significantly, and after surpassing 490, it fell below 0.1.

The life limit achievable through Frost Giants was probably 500.

But he wasn't complaining.

Given how life growth had been becoming increasingly difficult, he should be bowing in gratitude for being able to grow it by 40 in one go thanks to these giants.

"But this is just the beginning."

Actually, this Frost Giant grinding wasn't just for Ban Yu-won's growth from the start.

Right now, he had an absurd number of vassals that needed to be strengthened!

"First Eve, Lilith, and Tike. Today we'll get your Life to 300."

"Sisisit!"

―Paaang!

―Whiing, click-click

Eve and Lilith had already achieved Life depths of 250 and 220 respectively during their previous tower exploration.

Tike had only recently become a proper vassal, so she was still only at 120, but with the high-purity concepts from the Frost Giants, she should be able to reach 300 quickly.

The same would probably apply to Soul as well.

[Absorbing Void Pressure Void Pressure 16.]

[Absorbing Sharp Weapon 5.]

"...Those guys are evolving too."

―That thing ate stones again!

―Father, the insect is eating stones!

―It won't be able to keep eating! Take this sharp spear crafted from Father's body!

―Throw and throw again! Keep throwing!

The Void Pressure that fell on his head whenever he let his guard down, and the Frost Giants who had evolved from throwing mere [Stone 1] to crafting and throwing decent spears and thorns from stones.

Of course, from Ban Yu-won's perspective, they were just kindly giving him more concepts!

"Shall we start again then."

Ban Yu-won grinned as he shot out 'seven' rain streams.

Five streams were used to deflect the Frost Giants' attacks and restrict their movements, while the remaining two pierced through their vital points.

After focusing on controlling the Rain Sword for several hours, he could now move it naturally according to his will without having to consciously control each individual stream.

Ban Yu-won quickly killed two more giants to secure their concepts, then nodded and pulled out an eighth rain stream from his inventory.

Nothing beats training against strong enemies for grinding materials and skill proficiency!

*

Ban Yu-won looked up at the sky, thinking detachedly how terrifying it was that the sky's color didn't change no matter how much time passed.

The sky was exactly the same as when he first entered, but the current time was 11 PM.

Ah, here comes another attack.

[Absorbing Void Pressure 22.]

'If I used all the accumulated Void Pressure in one strike, I could probably take down even the World Giant in one hit.'

Of course, he wasn't going to waste it like that.

As the grinding had gone on for over 10 hours now, unnecessary noise was starting to creep into Ban Yu-won's mind.

In games, grinding only required moving your fingers, but now he had to deal with concepts flying at him from all directions while simultaneously controlling the Rain Sword with mental power, which was causing quite a bit of stress to build up.

"Sisisit!"

"Hm? Did you reach Life 300?"

"Shiiit!"

Just then, Eve made a welcome report.

Not just Life, but all the concepts that could be strengthened from those creatures, including Soul, had reached their limits.

"Good. Let's keep pushing!"

Not long after, Lilith, and then an hour later, Tike, all achieved Life 300 and Soul 200.

Of course, their combat concepts lagged somewhat behind their rapidly grown core concepts, but that much could be quickly caught up once they were deployed in actual combat.

"Just watching is exhausting me. Are you in your right mind? Are you really going to continue this madness?"

"Celon, humans have no limits. Even when I was just a normal person physically and mentally, I once fought for 37 hours."

With fingers.

"What? Was Earth such a terrifying place?!"

"Someone like me was nothing on Earth. That place is full of people who fight desperate battles without sleep for three days straight, sometimes even up to a week."

With fingers.

"Ugh, when you return to Earth later, leave me at the Academy..."

"You have to come with me. You'll probably end up liking Earth too."

"That den of crazy monsters?"

Thanks to Celon's periodic conversation, his mental stress was being considerably alleviated.

Ban Yu-won muttered as he shot rain streams at the Frost Giants falling from the World Giant's armpits.

"Now that we're done training Tike, it's time to properly level up the Rain Sword."

"I'm losing my mind! I'm telling you I'm losing my mind!"

"You think you're any better than them when you're just watching?"

Ban Yu-won pointed at the Frost Giants still raging on the ground as he collected his Rain Sword and concepts.

Having realized that simply throwing spears wouldn't work anymore, they were now creating and throwing quite impressive weapons by mixing stones with their innate cold energy.

[Sharp Weapon 10, Ice Curse 5]

"Oh, what's this?"

At some point, the spears they were throwing became mixed with curses.

Dragons and dwarves and other beings from Norse mythology were known to be incredibly fond of curses, but who would have thought they'd mix ice and curses to shoot?

What was he supposed to do with yet another collection category at this point?!

"...Hey, can't you give that to me?"

"Didn't you just say you were losing your mind?"

"If you give me that, I think my mind will come back."

"Alright, but from now on you're teaching me about curses too."

After being deeply involved with curses and counter-curses in this incident, he had decided he needed to properly understand this field to prepare for it.

Fortunately, since Celon seemed to have some expertise in curses, he planned to use this ice curse as an opportunity to dive deep into the subject.

"So how long are you going to keep at this?"

"Celon, grinding has no end. There are only brief moments of rest."

"Don't say it like it's some profound quote, you idiot."

Ban Yu-won grinned as he shot out 'ten' rain streams.

Somehow, it felt like he was training his mental fortitude.

*

It became 11 PM on Saturday.

All the Frost Giants were dead.

The World Giant also stopped in its place.

"......"

―......

―......

Something had felt a bit off since an hour ago.

While reducing the number of Frost Giants, strangely, the World Giant's speed of producing new Frost Giants had been slowing down.

Though he felt uneasy, there was nothing he could do about it, so he just kept diligently killing them.

Who would have thought the World Giant's production capacity had a limit!

First Rain Stream [Magic Sword 140, Life 140, Soul 60, Swordsmanship 15, Resonance 28, Unity 5]

"At this rate, I'll have to leave..."

Ban Yu-won clicked his tongue while looking at the options of the Rain Sword that hadn't yet reached its target.

Thanks to fighting for over 30 hours using only the Rain Sword, not only had his Swordsmanship and Resonance grown significantly, but he was also able to greatly develop Magic Sword, Life, and Soul across all twenty-five rain streams. Still, it felt like he could have extracted more.

"Is it finished?"

―What are you suddenly talking about?

―......

Just in case, he tried chanting the forbidden spell, but the World Giant still didn't budge an inch.

Ban Yu-won finally acknowledged that his grinding session was over.

'Well, at least the Rain Sword's autonomous movement has become somewhat possible.'

When he first used the Rain Sword in actual combat, it felt like Ban Yu-won was controlling it directly, but now he could designate rough behavior patterns with just simple thoughts.

Though its precision was lower than when he directly controlled it through the Executioner's Longsword, just like AlphaGo diversifying its behavior patterns through countless games of Go, the Rain Sword had also accumulated dozens of hours of combat data and started showing quite plausible movements!

However, the number of Rain Swords he could handle at once was still limited to 12.

Whether it was the limit of his soul or the limit of resonance, he couldn't tell... but he'd have to work on increasing the number one by one from now on.

―Guaaah......

Just as Ban Yu-won was evaluating the results of his grinding while making twelve rain streams perform aerial acrobatics.

The World Giant that had been standing still until now started moving again with a sound.

―Kwaaaaaaang!

Or so he thought, but it smashed its own head into the ground and died right there.

"......"

―......

As Ban Yu-won and Celon watched in astonishment, blood flowed profusely from the dead World Giant's opened mouth forming rivers and seas, and its eyes naturally popped out and rose to the sky - one becoming a bright star and one becoming a dark star, dividing day and night.

Its flesh instantly rotted and crumbled to form the earth, while its bones and teeth became minerals and jewels... The creation myth of Norse mythology was perfectly recreated.

It was truly a spectacular sight.

"Wow, this video would be huge if we uploaded it to the Rebellion channel."

―Yeah, though we'd have to edit out the part where the giant commits suicide.

With those words, Ban Yu-won and Celon fell silent again.

Of course, even during all this, he didn't forget to collect the concepts from the dead World Giant.

This must be the concept cluster with the highest purity in this space!

[Absorbing Life 50, Giant 50, Body 25, Ice Magic Power 30, Soul 25, Ever-changing 1, Death 1. Giant, Ever-changing, and Death are concepts that humans cannot possess.]

They didn't have to show it as concepts too!

It was his first time obtaining Death as a concept, indeed.

So this was the concept you could get by making an enemy commit suicide!

'This feels really unsettling.'

Ban Yu-won, feeling uneasy about even having this concept, worried about what to do with it before stuffing it into his Code Core for now.

Even Dokgo Yeon only temporarily generates and handles it while using his martial arts - it's an extremely dangerous power.

One thing was certain: it wasn't a concept that could be carelessly bestowed upon something else.

There was another important concept as well.

Ever-changing.

'It's the concept that Eve possesses. I could give it to Eve as is, but...'

Actually, Ban Yu-won had tried to separate part of Eve's Ever-changing concept before.

The result was a splendid failure.

It had already become a core concept forming Eve along with the Beast concept, making it impossible to separate even a part of it.

Then would it be wise to just give this newly acquired Ever-changing concept to Eve?

Even then, Eve's Ever-changing would only grow by 1?

―Pang!

That's when Lilith stepped forward to assert her existence.

Actually, Ban Yu-won had been thinking about whether either Lilith or Tike could absorb Ever-changing.

―What about me?

"Celon, you're just a junior. These things go by hierarchy."

―With that outdated mindset, you think you can conquer the Babel Tower? Society is meritocratic, ability is everything!

"Yeah, right now Lilith is more helpful than you~"

―Aaagh!

Ban Yu-won eventually bestowed Ever-changing upon Lilith.

Unlike with Eve, he had actually been somewhat worried that Lilith might not be able to accept Ever-changing, but the recently active mutation caused trouble again.

[Bestowing Ever-changing upon the target. Due to mutation's effect, new possibilities of change take root in the target, causing fundamental variation!]

[All concepts possessed by the target merge into one. Centered on Ever-changing, the individuality and characteristics of all concepts fuse to create a being with unique concepts. However, the upgrade will take considerable time.]

"Ah."

In an instant, Lilith's entire body crumpled and transformed into a huge metallic egg shape.

Ban Yu-won, who had been riding on Lilith and was thrown into the air, hurriedly reached out to store it in his inventory, then created an air platform with elemental magic to prevent falling.

―It would have been better if you had just fallen.

"I don't want to bathe in the blood of a suicidal giant."

But who would have thought that even Lilith would evolve due to mutation's effect.

It was good that he had blocked all connections with the constellations when entering the tower alone.

If he hadn't, the constellations would have caused another uproar!

―Woooong

"Hm?"

Could this finally be the sword's cry?

Of course not.

What was vibrating was the world itself.

"Could it be a shift?"

―You, brace for impact.

Just as Ban Yu-won tensed his entire body at Celon's words that made him want to fasten a seatbelt.

Enormous pressure rushing in from all directions pressed down on his entire body.

The next moment, Ban Yu-won found himself thrown out in front of the tower's entrance.

"...Retire?"

―No, it seems like the tower just kicked you out? You didn't actually take any damage.

Indeed, looking at his student ID, his solo exploration reached level was marked as 10, not 0.

It seems he was judged to have reached Room 10 after breaking through the section corresponding to Rooms 1-9.

―I think it's like this. The next room isn't ready yet. Maybe changes are starting to take place there from now on?

"Ah, that could be it. You're smart."

―Sorry, I was just saying whatever came to mind. This is my first time experiencing something like this too.

"Phone smart......"

Ban Yu-won tried to enter the tower again while looking up at it standing there unchanged, but whether Celon's words were true or not, he couldn't get in.

Having finished his first solo exploration with a sense of incomplete combustion, Ban Yu-won returned to his room with an unsatisfied face and lay sprawled out on his bed until it was time for his date with Luciel.

[The achievement Giant Slayer has been reflected, raising Honor depth to 80. Soul depth has become 700.]

That's why he failed to notice the subtle changes in his internal concepts.

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