The hospital corridor, predominantly white, echoed with the swift footsteps of several young men, drawing only brief glances from passing nurses who immediately recognized them as the day's challengers.

These days, the hospital saw challengers almost daily; the doctors, nurses, and even the patients at Inzarotta had moved from initial surprise to sheer numbness regarding the constant stream of hopeful fighters.

A few idle nurses paced softly behind the young challengers, their numbness notwithstanding, as everyone still held a single, shared anticipation: the moment someone might actually manage to defeat the two young men standing guard at the door.

Over the last month and a half, only a sparse handful of challengers had managed to pass the checkpoint set by the young warrior from Hezhou, only to be effortlessly turned away at the door by the other—a handsome, cold-faced man from Europe.

Compared to the warrior from Hezhou, the handsome, cool man with obvious European lineage dispatched opponents in the blink of an eye, neutralizing their combat ability instantly every time he moved.

"Excuse me, is Qin Fen in..."

"Looking for Old Qin?"

A slightly excited voice echoed from within Qin Fen's room. The door slid open slowly, and a yawning Kai Tian Brooks stepped out, his pale blue eyes sweeping over the three young martial artists.

"Inzarotta, do you mind if I take these few off your hands?"

Brooks smiled as he looked towards the cold, handsome man with European lineage, who sat nearby, clutching a tablet computer and furiously calculating without even lifting his head.

Since everyone had been injured, the task of fending off challengers had largely fallen to Ji Zhen Xuanyi. However, as Qin Fen's disciple, his strength was inevitably limited, and he still occasionally failed to repel challengers stronger than himself.

The first time this happened, Inzarotta had appeared. He hadn't even raised his head, delivering a swift side-kick to the opponent's abdomen, then turned around without a second glance to sit back down and resume his work on pharmaceutical simulations.

The young martial artist struck in the abdomen suffered a ruptured liver and had not yet fully recovered, remaining hospitalized since.

Brooks had become the first young martial artist to make a full recovery over the past month and a half.

Just now, inside the room, he had been sparring swords with Xue Tian and was defeated by a single stroke, leaving him with pent-up frustration. Hearing that challengers had arrived, he eagerly jumped out to find someone to spar with.

Inzarotta still did not lift his head, his ten fingers dancing rapidly across the tablet screen, responding simply, "Fine."

Brooks stretched his shoulders, raised his palm, and pointed his wooden sword at the three young men: "Before, when fighting Old Qin, he always used to say one line. Every time I recall it, I think it sounds incredibly cool. Today, I finally get to say it too: All of you, come at me together."

As the words fell, Brooks' internal zhenqi surged. His wooden sword, held perfectly still, pointed toward the three from a distance, emitting a distinct, low, buzzing vibration from the air.

Nine Stars! Over a month of recuperation had not caused Brooks' strength to regress. Daily interactions with Qin Fen and the others, coupled with Inzarotta’s strange, unpalatable medicinal pills for recovery, meant that upon regaining full health, he had not only entered the Nine Star realm but was already dangerously close to its peak.

Activating his Nine Star strength for the first time, Brooks instinctively turned his head to glance at Inzarotta, who sat on the corridor bench with an expression of deep concentration.

This genius from Europe was far more terrifying than imagined. Without the aid of those medicines, he suspected his body likely wouldn't have recovered so completely yet.

Of course, more astonishing than his physical recovery rate was the other efficacy of Inzarotta’s medicine. To possess his current strength, in addition to consultations with Qin Fen, this man’s pills accounted for a huge percentage.

"These pills have extraordinary effects," Brooks muttered, then seriously shook his head. "But compared to their extraordinary efficacy, the price is also extraordinarily high..."

Ji Zhen Xuanyi, standing nearby, nodded repeatedly upon hearing this. Inzarotta's experimental pills prioritized efficacy above all else, temporarily neglecting any considerations for mass production or cost reduction. Consequently, every single pill was astonishingly expensive.

Only because the people in Qin Fen’s room came from wealthy families could they afford the medicines Inzarotta sold.

The wooden sword, agitated by the vibrating zhenqi, naturally produced the low buzzing sound in the air. The three challenging young men simultaneously backed up a step, shivering visibly, none daring to meet Brooks' eyes directly.

Those eyes held something beyond ordinary fighting intent; flashing between his pupils was something closer to killing intent, a bloody, murderous aura.

Just from that brief exchange of glances, the three young martial artists perceived the bloodlust in Brooks' eyes. The battle on the beach had given Brooks immense insight; even with a thin wooden sword pointed remotely at them, he still projected an overwhelming, insurmountable presence.

"There's no need..."

The leader of the three challengers sighed and shook his head, all trace of fighting spirit gone from his eyes. He cupped his fists in salute and said, "Nine Stars... How many in the younger generation have reached Nine Stars? You win; we concede..."

The other two young martial artists hung their heads in dejection. They had long heard that Qin Fen, in response to orders issued by Song Wushen of the Qilin lineage, had established his own set of rules: challengers must first defeat those closest to him.

Recently, rumors had spread that the warrior standing guard at Qin Fen's door was a warrior from Hezhou hovering between the Six and Seven Star levels. No one expected that behind the Hezhou warrior lurked a Nine Star master.

How many Nine Stars are there among the younger generation? The Nine Star realm virtually represented the pinnacle of youthful strength; encountering one meant almost no chance of victory.

Brooks rotated the wooden sword in his wrist, his eyes subtly flicking sideways. "Boring. I thought I finally had a chance to vent the frustration in my heart, but it seems you don't even have the courage to fight. How can such people progress in martial arts?"

Solomon leaned against the doorframe, his eyes fixed not on the victorious, unchallenged Brooks, but squarely on Inzarotta, diligently working in his chair.

He had only heard before that Inzarotta was a supreme genius in pharmaceutics, likely to become an authoritative figure in chemical agents for the Federal Union. He never expected this future leader of pharmacy to also possess such a miserly, money-hoarding side.

Beep, beep...

The tablet emitted a few brief, melodious chirps. Inzarotta halted his work, picked up the small black briefcase beside him, and entered Qin Fen's room.

Inside the room, the young martial artists were either discussing and exchanging notes, meditating with their eyes closed, or repeatedly practicing punches and kicks, attempting to internalize the conclusions drawn from their recent discussions.

The moment Inzarotta entered, the room, which had been somewhat lively, instantly fell completely silent. Everyone wore a wry, helpless smile and began pulling out their virtual network bank transfer devices.

For the first three days after Inzarotta arrived, the special medicines they received were free. After that, they had to pay—and pay dearly—for every dose.

They all understood that, interpreting Inzarotta’s meaning, his current priority was maximizing the drugs’ effects, completely disregarding the exorbitant cost. This meant even he couldn't sustain the high expense of the medicines alone.

Since everyone wanted to recover quickly and simultaneously enhance their bodies with external aid, the solution was collective funding. After all, they should all have a considerable amount of money on hand.

Inzarotta’s medicine was indeed effective, extremely so. Especially because he researched each person's injury severity, physical constitution, and current strength level to tailor the most suitable formula for them—a level of precision Yan Sheng's pharmaceuticals couldn't match from self-prescribing apothecaries.

It was worth the price, and they needed to buy as much as possible!

Soon, Inzarotta smiled contentedly as he watched the figures on the network bank increase. Finally, he approached Xue Tian, Qin Fen, and Chen Feiyu, placing three boxes of medicine before them.

These three were the only ones in the entire ward who received medicine without charge.

No one held any resentment about this. Xue Tian alone had single-handedly taken down over seventy enemies with his blade; anyone seeing such a formidable record would be convinced. The injuries he sustained were several times more severe than anyone else’s, so free medicine was only proper.

As for Qin Fen... without him, even if they paid, they couldn't acquire these medicines! These drugs didn't just heal the body; more importantly, they stimulated the martial artist's physique and unlocked potential while solidifying their foundation and cultivating their vital energy.

Chen Feiyu? It was obvious he had no money, so no one minded that situation.

Caesar had not fully recovered yet, but even seated in his wheelchair, he had reached the Nine Star realm, awaiting only the push to its peak before attempting the final transition to True Innate through blood replacement and rebirth.

Everyone took their pills and soon gathered back around Qin Fen, even Brooks, now recovered and standing outside the door, returned to the room.

They had become accustomed to the routine: every day, Inzarotta delivered the pills, they consumed them, and then Qin Fen would begin lecturing, sharing his insights and understanding.

These young martial artists, usually full of pride and arrogance, had to admit that Qin Fen's explanations were more thorough, sharper, and more precise than those of their family elders. Even martial artists stronger than Qin Fen couldn't explain things as perfectly as he could.

Yang Lie looked curiously at Qin Fen. Usually, he only spoke verbally. Today, however, Qin Fen had specifically arranged five pillows as a backrest to sit up, placed a keyboard on his lap, and even set up a projector. What exactly was he planning?

"Everyone, not only have our bodies recovered rapidly these past few days, but our cultivation also seems to be increasing quickly. Many of you have already entered the Nine Star realm."

Laughter filled the room. Even those not yet at Nine Stars knew it was only a matter of time, perhaps within a few days. With Inzarotta's medicinal aid, coupled with the intensive training they could resume once healed, their strength would naturally skyrocket, likely allowing them to reach the peak of the Nine Star realm very soon.

"Therefore..." Qin Fen paused slightly, "What I intend to discuss today is some of my experience regarding the True Innate Rebirth through Blood Replacement..."

"What...?"

"Experience on the True Innate Rebirth through Blood Replacement?"

A small commotion immediately rippled through the room. The True Innate Rebirth through Blood Replacement was a ferocious hurdle on the martial path for any martial artist.

Rebirth through Blood Replacement to achieve True Innate... countless martial artists hailed as prodigious talents had been blocked precisely at this critical threshold.

Some passed through by sheer luck, but others were stuck at this stage for a year, even several years, completely missing the first crucial burst period of martial growth, preventing them from ever reaching the highest echelons of the martial way later on.

If one successfully completed the Blood Replacement Rebirth during the first year of that initial growth spurt, they would leap ahead of countless peers—it was no exaggeration to say they would gain an entire growth spurt advantage over their contemporaries!

Historically, this True Innate Rebirth through Blood Replacement was something martial artists had to achieve alone. Even with guidance from a master, it rarely offered much substantial help; at best, they could vaguely describe their own feelings and experiences at the time, which was far from sufficient and often misleading, trapping martial artists who had the potential to grasp the breakthrough.

"Old Qin, perhaps you shouldn't say anything..." Yang Lie bluntly raised his hand to stop him. "Sometimes, talking about this stuff only makes things more confusing and might actually backfire."

The other young martial artists nodded repeatedly. While Qin Fen's words were usually sharp and directly targeted the core issue, the True Innate Rebirth through Blood Replacement was on an entirely different level. Discussing it...

The lights in the room suddenly dimmed. Qin Fen’s hands flew across the keyboard. The projector let out a few sharp "squeaks," and vibrant, multi-colored light splashed onto the smooth wall—the imagery provided by the Master in the special space was displayed before them at that moment.

"This is..."

"What is this...?"

Qin Fen smiled, touching the bridge of his nose. To achieve this effect, he had spent the last few evenings employing two computer special effects experts, guiding them step-by-step to create the visual scenes he described.

"This is the visualization of the True Innate Rebirth through Blood Replacement. Everyone, look from left to right. As you view these sequential dynamic frames, you will understand what the True Innate Rebirth through Blood Replacement entails. I trust this will be somewhat helpful to everyone."

Qin Fen’s voice was casual and soft, yet to their ears, it sounded as shocking as an atomic bomb detonation.

This was the legendary True Innate Rebirth through Blood Replacement, which was rumored to be impossible to articulate verbally, requiring only intuitive comprehension? And he had turned it into images? Good heavens! If this were to leak, its value would be immense—it could incite madness and uproar throughout the entire Federation!

'Somewhat helpful'? That was a joke! This was far more than just a little help! Yang Lie’s healed arms trembled uncontrollably with excitement, and his heart rate accelerated beyond his control.

The situation for the other young martial artists was little different. Even for this group at the forefront of the younger generation, the True Innate Rebirth through Blood Replacement remained a terrifying, impassable barrier. No one dared claim they could certainly pass, nor that they could do so quickly.

Being able to witness the process of blood replacement visually was something none of the young martial artists had anticipated. They had expected to rely on the vague, indistinct, conceptual descriptions from their elders, slowly grinding through painful trial and error. Instead, Qin Fen had used a method entirely beyond their wildest imagination to present it to them.

They were all elites among the younger generation and naturally understood the immense value of Qin Fen's visual presentation. It was capable of saving every single person a year or several years of delay!

Even the masters in their respective families, who were far stronger than Qin Fen, could not achieve what these young martial artists were seeing with their own eyes. They could confidently say that Qin Fen had freely gifted them an entire period of explosive strength growth—freely gifted them several years of life! But more crucial than all of that was that he had given them infinite hope for future development!

So incredibly lucky! Caesar exclaimed repeatedly. He had previously felt that becoming friends with Qin Fen was already a joyous occurrence in life, but he never expected Qin Fen to deliver such a monumental gift! This wasn't just giving time; it was practically giving them life itself!

Every second during a martial artist's growth spurt is precious! Yang Lie threw his head back and laughed with unrestrained delight; being friends with Qin Fen was the ultimate stroke of luck.

"Qin Fen..." Yang Lie’s smile faded into a serious expression. "If you aren't struck down in the martial world, then in the future, you will undoubtedly become a Grandmaster! Perhaps even surpassing the Qilin Grandmasters!"