Why Did I Have to Enroll

What is the foundation of magic?

It is to cleverly deceive the world to create gaps in truth, and to substitute the caster's mental image for reality.

This is why the same spell can have drastically different results depending on the caster's magic power, will, and mental imagery.

―Kuwaaaaah!

"Kueeeek!"

"Kirik, run away! We're all going to die!"

―Kwaaaang!

...Thus, the volcano that had manifested on the ground was proof that the spell's caster had gone beyond merely deceiving the world perfectly - they were now controlling the world's will according to their own.

'Just two days ago, they could barely conjure a breeze in their palm.'

Ayre, who had inadvertently helped complete the spell, watched the volcanic eruption with an astonished expression.

Her attempt to interfere with his magic hadn't stemmed from mere jealousy.

Though admittedly, about half her motivation was mixed with disappointment towards Yumina for choosing her proxy so carelessly.

The other half was pure curiosity about him.

How could he possibly interfere with the magic formula in the student ID that contained the Chancellor's power?

What magic talent had he drawn from the artifact?

How could someone who had been so insignificant during the first class that they barely had any presence acquire power worthy of the Special Class in just three weeks?

'And yet.'

The magic power she had released to test him had lost its intended purpose and instead reversed course, enhancing his spell.

It meant his magic aptitude surpassed her own.

'No, that can't be right. It's physically impossible. It must be the artifact's effect.'

―However, it's undeniable that he was acknowledged as the owner of such a remarkable artifact.

Since there's no artifact known to handle both spell incantation and magic interference simultaneously, this spell must have been constructed purely through his ability.

'An impenetrable mental image, the magic power to make it real... How could he build such a magic framework in such a short time? How did he achieve such growth, what experiences led to this?'

Ayre gritted her teeth, feeling an unfamiliar sense of defeat.

Her sensitive ears caught the voices of classmates who were enviously criticizing Ban Yu-won's achievement.

"That spell was cast by that commoner?"

"Why would the Tower give such an excellent artifact to a parasite like that...?"

"Hmph, you think a low-level artifact could possess such high-level magic abilities? Professor Yumina must have secretly helped."

Ayre couldn't help but snort.

Professor Yumina helped? What fools.

How could such a solidly structured spell be completed under the influence of someone else's mental image!

She wanted to snap back at them, but remembering that she herself had interfered with his spell made it seem ridiculous to stand up for his honor.

After all, wasn't she the most detestable one here?

'To test someone without properly reading their abilities, I ended up no different from these pathetic people. Such arrogant thoughts led to this humiliation, you foolish Ayre.'

To avoid becoming like them, she decided to acknowledge what needed to be acknowledged.

Ban Yu-won's ability was undeniable.

At the very least, she was in no position to act haughty about verifying his abilities.

'Professor Yumina was right after all. I was wrong...'

...Then I should apologize now.

How startled must he have been by interference from an ally, not even an enemy?

Though the outcome made her look pathetic, she still needed to properly explain and apologize for her rudeness.

'Even for my own growth...'

She hoped to be forgiven for her ugly jealousy and to properly discuss magic with him.

And if possible, she wanted to receive even a small portion of the attention he got from Yumina, but she tucked that thought away as even she found it contemptible.

'So as soon as this battle ends, right?'

Ayre narrowed her eyes and looked up at the sky as she suddenly felt an enormous wave of mana.

A dimensional rift was opening.

*

[Elemental Magic depth has reached 97.]

A volcanic eruption spell that reached the pinnacle of both destructive power and range, sweeping away everything in the area with a single all-out blast.

Ban Yu-won shed tears of emotion at the result, which was incomparable to when he had been running around with just a sword.

Not only did he directly slaughter thousands of monsters, but considering the chaos that befell the monster formation as the entire area was completely overturned, he had practically finished the battlefield by himself!

[You have absorbed the concepts of Life 121, Body 45, Shadow Spirit(影鬼) 55, Magic Beast(魔獸) 42, Murder 17, and Assassination(暗殺) 65 from an enormous number of monsters. Shadow Spirit, Magic Beast, and Murder are concepts that humans cannot possess.]

And how beautiful were the golden strings of text that flew toward him, being absorbed from the corpses or traces of thousands of monsters!

However, the notification that appeared as they were absorbed into Ban Yu-won wasn't so beautiful.

[Life depth increased by 27, Body depth by 11, and Mysterious Qi depth by 5.]

'Why is it getting cut down to less than half...'

Of course, he knew that the shadow ferrets that made up the enemy's main force weren't particularly strong monsters, and there was a limit to the language concepts that could be obtained from the same type of monster!

But when the amount being absorbed drops this drastically, doesn't it make him feel foolish for getting so excited about seeing Life exceed 100!

At least he could absorb most of the non-core concepts while maintaining their full depth.

Though it was also a problem that most of these were concepts he couldn't possess.

'Murder 17, I'll add all of this to the Executioner's Greatsword. It's already at 72 now. I wonder if something will change when it hits 100?'

After removing the mana, he decided to save the remaining Beast concept with depth of about 20 for when Eve wakes up, storing it in the Code Core for now.

Shadow Spirit, which was practically the shadow ferret's identity, was naturally a concept that Ban Yu-won couldn't possess, but when split into shadow and spirit, surprisingly there was a concept among his internal concepts that could absorb the shadow.

It was the Shadow Step, a movement technique for moving quickly and stealthily within shadows.

[Shadow Step depth has reached 20.]

'Oh... Ohhhh!'

Perhaps due to its excellent compatibility with the shadow ferrets, despite containing other elements mixed in, Shadow Step's depth had soared to 20.

At this level, he should be able to use it without problems in actual combat.

Ban Yu-won closed his eyes and grinned as he recalled the principles of Shadow Step firmly etched in his mind.

Though it had become quite different from the Shadow Step he had obtained from the intruder due to the mixed-in shadow ferret concepts, that was actually better.

'And what's left is assassination, this... Right, this goes into martial arts too. Well, it makes sense since it's a way of moving the body.'

Getting the full assassination concept with a depth of 65 was no small jackpot either.

The shadow ferrets' characteristic was to move stealthily between shadows and kill enemies by ambush, and these habits and techniques of theirs were crystallized into the concept of assassination and absorbed by Ban Yu-won.

Moreover, since Ban Yu-won could now model his movements with Shadow Step, he would be able to maximize the assassination ability.

'Assassin, this is really triggering my chuunibyou again...'

—Hey, looks like more enemies are showing up?

Celon spoke in a flat tone to Ban Yu-won, who had been wearing a gleeful expression while finishing his calculations.

'What? Is Ayre still trying to pick a fight?'

—Not that pitiful girl, I mean real enemies. A dimensional rift is opening.

"What...?"

Ban Yu-won raised his head.

A black hole was piercing the sky, and from within it, a massive— an absolutely massive warship was revealing itself.

On the warship's side was emblazoned a large spread-winged bird insignia, and Light, who discovered it from the rooftop of the adjacent building, could be heard grinding his teeth and shouting.

"Exodus...!"

"Exodus?"

The name sounded familiar - it was the name of the dimensional pirate group that the intruder from the Tower belonged to.

They were a group that roamed multiple dimensions plundering, with particularly strong hostility toward the Union.

He remembered being warned to watch out for dimensional pirates like Exodus when conducting special activities in other dimensions.

'But why are they here now? And at such an unbelievable timing... Wait.'

At that moment, lightning struck repeatedly in Ban Yu-won's mind.

No, surely Ortima wouldn't go this far?

This went far beyond the realm of personal revenge against Ban Yu-won!

[We have come to exact payment for our comrades' spilled blood, you arrogant and selfish slaves of the Tower!]

A sharp male voice echoed loudly down to the ground, as if broadcasted through massive speakers on the warship.

The dimensional hole was widening in real-time due to the powerful magic waves generated by the massive warship, and through that hole, smaller vessels were emerging one after another like ducklings following their mother.

"No!"

Yumina let out a cry and instantly soared into the sky, releasing powerful magic throughout her entire body.

Centered on her, enormous thorny vines dozens, hundreds of kilometers in scale bloomed and stretched out, wrapping around and constricting the black hole in the sky.

Amazingly, it was preventing the hole from expanding and extending the thorny vines to seal off the ships' movements!

[Daughter of the monster! You've chosen death by not knowing your place!]

Purple lightning burst forth from around the massive ship, burning the thorny vines, but the magic originating from Yumina continuously regenerated them, holding back the fleet's advance.

Such overwhelming might that Ban Yu-won couldn't even imagine!

―Trying to block a dimensional rift alone, what kind of woman is she? That magic power isn't human?

"Can't you tell she's not human just by looking at her flower petal hair?"

―Idiot, that's not the kind of distinction I meant!

As he stood there blankly watching his professor's great feat while having a meaningless argument with Celon, he heard Cantone, who was in a building in the city center, shout as he spread out a massive hemispheric barrier centered on himself.

"Everyone stay in position! I've requested support, and the Vice Chancellor will be here soon. Nobody move from their spots!"

"What is he even saying?"

Ban Yu-won muttered in disbelief.

Even Yumina, who had been most concerned about Ban Yu-won's group's safety, was charging at the fleet without hesitation in this urgent situation, yet here he was trying to control the students, and while it was good that he wanted to protect them with a show of force, the load from this barrier was so heavy that it was difficult to even move properly.

"Yu-won!"

"Are you alright?"

"Ban!"

At that moment, Luciel, Dokgo Yeon, and Light, who had been on the adjacent building's roof, kicked off the building wall and flew over, landing beside him.

But Ban Yu-won couldn't help but ask them.

"How did you get over here?"

"I was worried about Yu-won..."

"I saw Dokgo Yeon moving."

Those weren't proper answers.

He had asked how they managed to fly here while overcoming such heavy resistance, but they acted as if they hadn't even felt the barrier...

That's when.

"I heard from the guide that you were in danger, so..."

Just as Dokgo Yeon trailed off with a look of sudden realization.

Aneri Dedota, who had somehow gotten close behind Ban Yu-won, quickly stretched out her hand!

"What-"

A dagger sprang from her hand.

Ban Yu-won's eyes widened as he desperately moved backward.

If Cantone had joined hands with Aneri to assassinate Ban Yu-won, it would have been quite a decent attempt.

After all, he couldn't move properly due to the load from this terrible barrier.

But the dagger, as if it had never been aimed at him in the first place, flew through the air without even grazing him-.

And struck the arm of the guide, the man who had landed on the rooftop with Dokgo Yeon!

"Kugh!"

"We have to kill him!"

Aneri shouted shrilly as she drew and threw another dagger.

Dokgo Yeon too, having quickly assessed the situation, turned and swung his hand to attack the guide.

But despite their swift reactions, Cantone's barrier interfered with their movements, preventing them from landing proper hits on their target.

The man managed to pull out an object from his chest without being stopped by them.

"That's?!"

"Ah...!"

A sphere emitting blue light.

A magic core was in his hand.

Ban Yu-won saw his entire body turn pitch black.

The All-Seeing Eye, which had gained the ability to judge good and evil, was marking him as a sinner.

It sure detected that quickly!

"For Exodus."

As if triggered by the man's brief murmur.

All his magic power was sucked into the magic core.

―Constellation! He's creating a dungeon with constellation power!

As if having heard Celon's voice, Dokgo Yeon hurriedly kicked at the man, and several daggers thrown by Aneri flew toward the magic core, but.

The guide's corpse, having already fulfilled its role, was thrown aside helplessly, and the magic core floating in the air created a black hole and disappeared into it before the daggers could strike.

If only that had been the end of it, but of course it wasn't.

"Wait, what-"

The black hole, like a black hole, generated terrible gravitational force and swallowed Dokgo Yeon, who was closest, without giving him a chance to resist, then proceeded to suck in Light, Luciel, and Ban Yu-won as well!

"Lord Yu-won!"

Ban Yu-won couldn't remember whose voice had called out to him in that moment.

He only felt someone tightly embracing his body, and also-.

Through his blurring vision, he thought he saw two figures rapidly flying toward them.

And when he opened his eyes, he was already inside the dungeon.

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