72

Chapter 72 — Mana Reversal

The expedition continued deeper into the dungeon.

After defeating the A+ Guardian, everyone had expected the path ahead to become somewhat easier. Instead, the opposite happened.

The mana density continued rising.

The crystal formations became larger and more concentrated. Some were now several meters tall, their interiors glowing with enough energy that the surrounding stone vibrated faintly.

Subin walked near the front of the formation, his hand resting loosely on Simple Edge.

His mind remained focused on the battle they had just fought.

The Guardian had been strong.

But strength wasn't what interested him.

It was the strange behavior of its mana.

During the final exchange, Subin had sensed something unusual. The Guardian's mana hadn't simply increased its physical strength. At one point, the flow inside its body had changed direction so abruptly that his Sword Intent had momentarily lost track of the transition.

He had assumed it was simply an advanced form of mana reinforcement.

Now he wasn't so sure.

"Subin."

Han Yerin's voice brought him back to the present.

He looked toward her.

"You've been thinking about that Guardian for the last ten minutes."

"Yes."

"What did you notice?"

Subin considered his answer.

"I thought its mana reinforcement was unusual."

"It was more than unusual."

One of the Association's technicians approached them carrying a portable mana analyzer.

"We examined the recordings from the battle."

He turned the screen toward Subin.

"The Guardian's mana didn't behave normally."

A three-dimensional model appeared.

Blue lines flowed through a representation of the monster's body.

"At the moment it evolved, its mana circulation changed."

The technician zoomed in.

"The energy wasn't simply moving through its body."

The lines suddenly reversed.

Subin's eyes narrowed.

"It reversed."

The technician nodded.

"Exactly."

Han Yerin looked between them.

"What does that mean?"

"We don't know yet," the technician admitted. "But there's something else."

He brought up another recording.

During one of Subin's exchanges with the Guardian, the monster's claw had nearly struck him.

The detector showed an abrupt disturbance around Subin's body.

"At this moment," the technician said, "the Guardian's mana changed direction."

Subin stared at the recording.

He remembered the sensation.

His own mana had felt strange for an instant.

Not weaker.

Not blocked.

Wrong.

The flow had attempted to move opposite to its natural direction.

He looked at the technician.

"How long?"

"Less than half a second."

Subin nodded.

"That's enough."

Han Yerin looked at him.

"Enough for what?"

"To kill someone."

The group became quiet.

Subin continued walking.

"If that ability becomes stronger, it won't need to overpower an opponent. It only needs to disrupt their mana at the right moment."

Han Yerin's expression became serious.

"Then we should report it immediately."

"We will."

The technician started typing.

Subin looked ahead.

The dungeon was still changing.

Whatever had produced the Guardian had created an environment where monsters weren't simply becoming stronger.

They were developing new methods of using mana.

That was far more significant.

---

The expedition reached the next chamber.

Unlike the previous cavern, this one was almost completely empty.

There were no trees.

No monsters.

No scattered mana stones.

Only a circular stone floor surrounded by enormous crystals.

The moment Subin stepped inside, his instincts reacted.

He stopped.

"Don't move."

Everyone froze.

Han Yerin immediately looked around.

"What is it?"

Subin didn't answer.

He was sensing the mana.

The entire chamber was connected.

The crystals.

The floor.

The walls.

Even the air.

Mana flowed through everything.

But it wasn't moving randomly.

It was circulating around the chamber.

A complete cycle.

Subin took another step.

The mana changed.

A thin blue line appeared beneath his foot.

Then another.

The entire circular floor illuminated.

[High-Density Mana Circuit Detected.]

[Environmental Mana Manipulation Possible.]

The expedition members raised their weapons.

One of the A-rank Awakeners asked, "Trap?"

"No," Subin said.

"Then what?"

"An ecosystem mechanism."

The answer didn't satisfy everyone.

But before anyone could ask another question, something emerged from beneath the stone.

A creature.

Smaller than the previous Guardian.

Approximately two meters tall.

Its body resembled a heavily armored wolf standing on two legs. Its limbs were covered in dark scales, while thin blue lines ran across its chest.

Mana Reversal Beast

Level: 74

Rank: A

The Association's detector immediately identified it.

Han Yerin's expression changed.

"That wasn't in the original data."

"It probably evolved recently," Subin said.

The creature lowered its body.

Then it disappeared.

Not literally.

It accelerated.

An A-rank fighter raised his shield.

The beast struck.

The shield blocked the claws.

The warrior smiled.

"I've got it."

Then his expression changed.

The mana reinforcement around his body suddenly collapsed.

His legs gave way.

"What—?"

The beast struck again.

Subin moved.

Simple Edge intercepted the second attack.

The impact pushed him backward.

His eyes narrowed.

He felt it.

The same sensation.

His mana flow had reversed.

For a fraction of a second, the energy circulating through his body attempted to move backward.

Subin immediately stopped his own mana circulation.

The sensation disappeared.

The beast attacked again.

Subin dodged.

The monster's claws passed beside his face.

He countered with a horizontal cut.

The beast twisted away.

Subin's blade barely grazed its armor.

The creature attacked again.

This time Subin didn't block.

He stepped backward.

The monster followed.

Its claws came forward.

Subin's eyes focused on its chest.

The blue lines beneath its scales brightened.

There.

The mana was changing direction.

Mana Reversal.

The ability wasn't merely reversing mana inside opponents.

The creature reversed the mana circulating through its own body at the moment of impact.

That allowed it to abruptly change the direction of its force.

Attack became retreat.

Retreat became acceleration.

Defense became offense.

It was using reversal as a movement principle.

Subin understood immediately.

The creature attacked.

Subin shifted left.

The beast reversed its momentum and changed direction.

Subin had expected that.

His sword moved.

The beast reversed again.

Simple Edge missed by centimeters.

Subin smiled.

"Interesting."

The beast attacked a third time.

This time Subin didn't predict its movement.

He watched the mana.

The moment the circulation reversed, he moved.

The monster's claw passed harmlessly beside him.

Subin's sword cut across its shoulder.

Blood appeared.

The beast roared.

Its mana surged.

Subin felt the reversal again.

But now he was prepared.

Instead of allowing his own mana to resist the foreign force, he temporarily stopped its circulation.

The reversal had nothing to grab.

The effect failed.

Subin stepped forward.

One cut.

The beast blocked.

Second cut.

It retreated.

Third cut.

It reversed its mana and lunged.

Subin turned his wrist.

Simple Edge met the claw.

Their weapons collided.

The beast attempted to reverse its mana again.

Subin's Sword Intent entered the point of contact.

He didn't force his power through the creature's body.

He simply observed the transition.

The reversal had a weakness.

Every reversal required a transition.

For an instant, the old direction disappeared before the new direction formed.

That moment was tiny.

But Subin's entire sword path was built around understanding transitions.

Intent Transition.

Subin moved.

His sword passed through the transition.

The creature froze.

A cut appeared across its chest.

It staggered backward.

Subin followed.

The beast tried to reverse again.

Too late.

Simple Edge struck.

The monster collapsed.

[A-rank monster defeated.]

[Mana Reversal Beast defeated.]

[Experience acquired.]

Subin stood silently.

The Association members stared at the corpse.

One of the technicians rushed toward it.

"That ability..."

Han Yerin looked at Subin.

"You figured out how to counter it."

Subin shook his head.

"I didn't counter the ability."

"What did you do?"

"I cut the transition."

She looked confused.

Subin explained.

"Mana can change direction. The reversal itself isn't the weakness. The weakness is the moment between the two directions."

Han Yerin slowly understood.

"You're attacking the transition rather than the mana."

"Exactly."

The technician looked at the corpse.

"So the Guardian had the same ability."

"Probably," Subin said.

"Then this creature may have evolved from the same environmental condition."

Subin nodded.

That was the important discovery.

The ability wasn't unique to one monster.

The dungeon's environment was producing monsters capable of manipulating mana direction.

The ecosystem was developing a trait.

---

The technicians extracted the monster's core.

It was smaller than the Guardian's core but considerably purer.

Mana Reversal Beast Core

Grade: Epic

Purity: 92.3%

Stored Mana: 27,640

The Association secured it for research.

Subin didn't ask for it.

His attention was already elsewhere.

He looked at the crystal formations surrounding the chamber.

The mana circuits had begun changing again.

The blue light moved from crystal to crystal.

Then all of it flowed toward the deepest section of the dungeon.

Subin could feel the direction.

"There's the source."

Han Yerin looked at him.

"You're sure?"

"Yes."

"How far?"

Subin closed his eyes.

His perception extended through the mana network.

Several kilometers.

Maybe more.

He couldn't determine the exact distance because the crystal network distorted his perception.

But the direction was clear.

"Far."

The expedition leader looked at the Association technicians.

"Can our equipment handle it?"

One technician checked the readings.

"We're approaching the limit."

Han Yerin thought for a moment.

"We continue until the equipment becomes unreliable. Then we return."

Subin nodded.

That was reasonable.

There was no benefit in blindly pushing forward.

The expedition began moving again.

As they walked, Subin continued thinking about the Guardian's ability.

Mana Reversal.

It wasn't a sword technique.

It wasn't something he wanted to learn directly.

But understanding it had taught him something.

Mana had direction.

Intent had direction.

Movement had direction.

A sword strike had direction.

And every direction could change.

The important part wasn't simply the beginning or ending.

It was the transition.

His understanding of Intent Transition had already reached advanced application.

Now he could see another layer.

Not merely transitioning between intentions.

But understanding the transition between states themselves.

He didn't receive a new skill.

There was no sudden reward.

Instead, something inside his Sword God class quietly adjusted.

[Sword Intent comprehension: 85% → 86%]

[Intent Transition: Advanced Application]

[Conceptual Understanding improved.]

Subin dismissed the notification.

He continued walking.

Then another notification appeared.

[Sword God Class Evolution Progress: 73% → 74%]

Subin glanced at it.

His class was evolving naturally alongside his understanding.

That was enough.

The expedition continued toward the deepest region.

---

Several hours later, the group reached the edge of a massive underground valley.

Everyone stopped.

The sight before them was unlike anything they had encountered inside the dungeon.

An enormous river of mana flowed through the valley.

It wasn't water.

It was pure concentrated energy.

The river descended from somewhere high above and disappeared into a gigantic crystalline formation at the far end.

Around it, hundreds of monsters had gathered.

Some were Level 70.

Others were above Level 75.

Several had already reached A rank.

The expedition leader immediately ordered everyone to stop.

"No further."

The technicians looked at the readings.

Their faces became pale.

"Mana density is over sixty percent."

Another checked his equipment.

"The instruments can't calculate the concentration inside the river."

Subin stared at the enormous formation.

He could feel the mana flowing through it.

And unlike the earlier chambers, this wasn't merely circulating.

It was being compressed.

Compressed again.

And again.

Until the energy became something far denser than ordinary dungeon mana.

Subin's eyes narrowed.

"This is the dungeon's mana reservoir."

Han Yerin nodded.

"Then we've found what we came for."

Subin didn't answer.

He was looking beyond the reservoir.

The monsters were gathering around it.

Not because something had commanded them.

Because the strongest resource in the dungeon was here.

Naturally, the strongest creatures had been drawn toward it.

Competition would follow.

Evolution would follow.

And eventually, territorial conflict would follow.

The dungeon was behaving exactly as a living ecosystem should.

Subin smiled faintly.

Then the ground beneath them trembled.

The mana river surged.

The surrounding crystals illuminated simultaneously.

The monsters scattered away from the reservoir.

Not in panic.

They were making space.

A deep vibration traveled through the valley.

Subin slowly drew Simple Edge.

Han Yerin raised her spear.

"Everyone, prepare."

Subin looked at the enormous crystalline formation.

Something had changed.

The mana density was rising.

And this time, the entire dungeon seemed to be responding.

[Environmental Mana Saturation: 41.2%]

[Monster Evolution Probability: Significantly Increased.]

[Global Dungeon Progression Detected.]

Subin tightened his grip around Simple Edge.

The expedition had come to investigate an A-rank dungeon.

But they had discovered something far more important.

The dungeon wasn't simply becoming stronger.

It was evolving.