Dan Akseon frowned as he stepped into the Brain Prison.
It was due to the musty air, the damp energy, and the terribly pungent stench.
Above all, the Brain Prison was as dark as pitch, with not a single ray of light entering.
But that wasn’t a big problem.
He simply solved it by maximizing his senses with the Weiwha Divine Art.
The flow of air and the reverberation of sound.
Through this, he could easily grasp the internal structure and terrain.
The map Wang So-gun had made for him was also a great help.
Most fortunate of all, the martial arts of the prison guards monitoring the Brain Prison were not that great.
Dan Akseon, subduing the visible prison guards one by one, was eventually able to discover a space far away, enveloped in a faint light.
He belatedly realized it was due to the night-shining pearls embedded in the ceiling, but that wasn’t important now.
Crack.
He swung the Dark Dragon, smashing the lock that sealed the entrance to the Brain Prison.
A figure lying in the Brain Prison, covered in a rough mat, reacted to the sound and stirred.
“Are you Great Hero Jegal San?”
Jegal San, who had been staring blankly at Dan Akseon as he entered the Brain Prison, chuckled in vain.
“What trickery is this time?”
“I’ve come to take you with me.”
Jegal San scoffed at Dan Akseon’s reply.
“Nonsense.”
What kind of place was this to deploy rescue personnel?
It was absurd.
It was clearly a shallow smokescreen to test him.
Jegal San curled up a cynical smile.
“It wouldn’t be the already deceased Subo… Is it that Jo Eum-seo fellow?”
Dan Akseon smiled bitterly.
It was clear that he was misunderstanding the situation.
Above all, Jegal San’s eyes, shimmering with a strange light, looked somehow different from those of a normal person.
‘Well.’
It was no wonder that he couldn’t maintain a sound mind, having been trapped in this stuffy Brain Prison for so long.
“I’m Dan Akseon.”
“You are?”
Jegal San’s eyes shook greatly.
“You’re the Divine Physician of the Demonic Realm?”
With those words, Jegal San took a step and approached Dan Akseon.
As the distance between them closed, Dan Akseon couldn’t help but frown.
Aside from the terrible stench that pierced his nose, it was because of the other man’s terribly ruined appearance.
It was then that Jegal San suddenly opened his mouth.
“Prove it.”
“Pardon?”
“Convince me that you’re the Divine Physician of the Demonic Realm.”
“This isn’t the time to…”
“Now!”
Dan Akseon met Jegal San’s gaze.
His face was very haggard, and his staggering figure looked precarious, but his eyes were shining brightly even at this moment.
Dan Akseon took out the jade flute he had received from the Palace Lord of the Flower of Pear Blossom Palace from his chest and showed it.
Jegal San’s eyes widened.
The Flower of Pear Blossom Palace’s sacred object, of all things, could not be imitated.
In fact, most people in Gangho [the martial arts world] didn’t even know it existed.
“Ha!”
Jegal San stared at Dan Akseon with newfound surprise.
The information about the Flower of Pear Blossom Palace that Wang So-gun had conveyed.
Among them, what caught his interest was none other than the existence of Dan Akseon.
But when he actually faced him, he was so dumbfounded that he couldn’t continue speaking for a moment.
He already knew his age, but when he actually faced him, he felt much younger than he had thought.
‘This child has accomplished such great things!’
The achievement of creating a joint statement by going around the Nine Great Sects for the sake of the Demonic Faction, and declaring martial arts as forbidden through this, thereby uniting the Demonic Faction, was something that even he, the best in the world, shook his head at.
Moreover,
The Divine Physician Commerce Group, which had established itself as the best commerce group in the Central Plains, and the Divine Physician Medical Center, which had solidified its status as the best medical family in the Central Plains, were also possible because of the boy in front of him.
The elimination of two of the Six Demonic Venerables and the quieting of the Blood Wind of the Grassland were also possible because Dan Akseon existed.
Moreover, he was now preparing for a battle with the Demonic Sect by uniting the Righteous and the Unorthodox.
But that was why there was something he couldn’t understand even more.
“But why are you here?”
“Let’s talk about the details outside. There’s no time.”
Jegal San frowned at Dan Akseon’s words.
“Perhaps you didn’t receive the message?”
“What do you mean?”
“Surely they told you to just leave me alone?”
Dan Akseon smiled quietly.
“I couldn’t give up on a hero who sacrificed himself for the sake of the entire Central Plains.”
“You’re still young.”
“Pardon?”
“That’s why you’re clinging to things like morality.”
With a self-deprecating smile, Jegal San sighed.
“You shouldn’t have come here.”
“…”
“Because even if it’s easy to get in, escaping is a different story. Above all…”
Jegal San trailed off and glared somewhere.
It was also at the same time that a person slowly walked out of the darkness.
“Especially as long as that guy is watching this place.”
The old man who walked out of the darkness smiled whitely at Jegal San’s words.
“The Divine Physician of the Demonic Realm… A big fish has been caught in the bait called Jegal San.”
Dan Akseon was also feeling the eerie energy emanating from behind him.
Dan Akseon turned around and stared at the opponent.
“You must be one of the Four Demonic Venerables.”
He had encountered him before in Kunlun while he was training the Heavenly Demon, but he did not know about his exact identity.
“That’s right. I am Jo Eum-seo.”
Eumma (音魔) [Sound Demon], Myeonghwanhyuljeok (冥換血笛) [Netherworld Blood Exchange Flute] Jo Eum-seo blocked the exit of the Brain Prison with a chilling look.
He was small and his arms were thin, making him look as if he would break even in a slight breeze.
But the overwhelming pressure emanating from him perfectly dominated the area.
There was not even the slightest gap to be seen.
At this moment, Jegal San couldn’t help but feel sorry.
Losing Dan Akseon in a place like this would be a painful mistake for the Central Plains martial arts world.
Dan Akseon turned his head to look at Jegal San at the low groan coming from behind him.
“It’s okay. Trust me.”
Dan Akseon gave him a smile, but Jegal San’s heart darkened even more.
That’s how bad the opponent was.
The level of martial arts was a secondary issue.
Above all, the compatibility and location were too bad.
It was then that a chilling laughter echoed through the Brain Prison.
“Dark Venerable, I heard that friend of yours was defeated by you?”
Jo Eum-seo began to chuckle as if he was so happy.
“If I didn’t know, I wouldn’t have known, but seeing you in person like this is so absurd that I can’t help but laugh.”
After laughing like that for a while, Jo Eum-seo stopped laughing as if it were a lie.
“Anyway, I thank you for now.”
“…”
“Thanks to you, I’ll be able to save face with the Lord.”
Dan Akseon’s gaze quickly grasped the surrounding terrain.
A corridor-style passage carved out of the rock wall.
Its height was a little less than one fathom [approximately six feet], and its width was less than half of that.
It was so narrow that at most two adults could barely stand side by side.
The limited space hampered the use of the Dark Dragon, which belonged to the long-range weapon.
Then the only remaining method was stabbing.
The problem was that the opponent was fully expecting this as well.
Jo Eum-seo curled up his lips and emitted an eerie energy.
“Let me tell you. Why I, not the other Demonic Venerables, remained here.”
In his hand was already a blood-tinged bamboo flute.
A sacred weapon that made him who he is today.
It was the Evil Sound Blood Flute (邪音血笛).
Dan Akseon hurriedly raised the Dark Dragon and rushed towards Jo Eum-seo.
However, Jo Eum-seo was a little faster.
Peep!
The moment a sharp sound that scratched the eardrums shook the Brain Prison.
“…!”
Dan Akseon almost dropped the Dark Dragon from his hand.
His legs lost strength, and he felt nauseous, and then his energy and blood began to boil in an instant.
Once the inside was shaken up like that, his vision became blurred.
“Keup!”
Dan Akseon hurriedly drew upon the Weiwha Divine Art and struggled to withstand Jo Eum-seo’s sound attack.
Jo Eum-seo gave a bitter smile towards Dan Akseon, who was doing that.
“Yes. Try hard. But how long do you think you can last like that?”
A song of death and a sound attack (音功) [音功: eumgong, sonic art] in itself, Myeolhon Gok (蔑魂哭) [Despising Soul Cry].
In front of it, even a master who had achieved the Indestructible Vajra was meaningless.
With the exception of poison skills, sound attacks were the only martial art capable of mass destruction.
On the other hand, it was somewhat disadvantageous in a one-on-one battle against a master.
However, if the terrain was narrow like this and the sound was overlapping and echoing, the story was different.
The overlapping sound attacks became more powerful over time.
Jo Eum-seo was confident that he could defeat anyone in the world in a place like this, if not anywhere else.
Dan Akseon’s eyes sank heavily.
It was because he had already discovered the Demonic Sect members lined up densely behind Jo Eum-seo.
There was no way they couldn’t have heard the sharp sound that filled the area.
However, the real problem was separate.
The power of the sound attack that was penetrating his energy and blood was gradually increasing even at this moment.
As if he didn’t care about Jegal San’s life, Jo Eum-seo was increasing the power of the sound attack without the slightest hesitation.
On the other hand, the Demonic Sect members lined up behind him were fine.
As befitting the name of the Demonic Venerable, he was a master who could even control the direction in which the sound attack’s influence reached.
The sound attack echoed off the Brain Prison walls, overlapping and overlapping.
The moment the amplified power shook the inside one after another.
Dan Akseon’s eyes sparkled.
Although he had never directly faced a sound attack before, he had already experienced similar dangers several times.
It was inside the formation.
Among all the means that stimulated human senses and put them in danger, the higher the power, the more the sound was naturally included.
The method of attacking the opponent by loading energy into the sound was similar to the nature of the formation, which maximized the intruder’s senses and gradually collapsed them from the inside.
Recalling this, Dan Akseon came up with a very simple yet effective method.
Woo Woong.
The Dark Dragon, which had absorbed a lot of majestic energy, let out a low cry.
Ppaang!
Almost at the same time, a thunderous roar, as if explosives had exploded, filled the Brain Prison along with a dark flash that burst into the air.
At that moment.
Dan Akseon’s eyes flashed with a strange light.
Although it was only a momentary gap, he could not feel the sound attack that had been tormenting him so much.
‘It’s working.’
The experience gained through countless sparring sessions with the Three Demonic Venerables was shining at this moment.
He had experienced similar phenomena several times before.
The sight of the surrounding scenery distorting and the atmosphere twisting at the moment when energy and energy collided.
A phenomenon caused by the surrounding air rapidly escaping due to extreme pressure, resulting in a vacuum state.
And in that vacuum space, no sound exists.
A sound attack was a martial art that used sound to strike the enemy.
Then all he had to do was block the sound itself.
Kwareureung!
The air, which was pressed and compressed by the energy formed at the end of the Dark Dragon, burst out one after another.
The resulting explosion soon created a thunderous roar.
Each time, a sharp flash of lightning flashed at the end of the Dark Dragon.
However, Jo Eum-seo did not lose his composure even after seeing Dan Akseon responding by creating a vacuum state in the area.
“Foolish.”
No matter how outstanding a master was, he was still a person made of flesh and blood.
As long as he possessed that body, there was bound to be a limit.
Even if he had the best internal energy in the world, it would eventually run out.
Moreover, the technique that the brat in front of him was using was clearly a great secret technique at a glance.
‘How long can he continue to use it in succession?’
As expected.
Dan Akseon’s face gradually began to turn pale.
The vacuum space was only about one fathom in the space between Jo Eum-seo and Dan Akseon.
However, even if it was a limited space, it was very difficult to maintain a perfect vacuum state in which sound could not pass through.
That was because the consumption of internal energy was so severe.
It was then.
Jegal San, who had been temporarily freed from Jo Eum-seo’s sound attack thanks to Dan Akseon, hurriedly shouted.
“Between breaths! There is a gap where the rhythm wavers in that interval. If you can cut off the boundary of breathing by aiming for that moment…”
Jegal San couldn’t continue speaking and collapsed on the spot.
A pale face with not a drop of blood and lips dying purple came into view.
Nevertheless, Dan Akseon waited and endured, waiting for the opportunity Jegal San mentioned.
How long had he endured like that?
Jegal San desperately cried out while vomiting blood.
“Right now!”
And at that moment.
An eerie energy exploded from Dan Akseon’s eyes.