The Demon's Tragic Lament in the Laboratory!

Inside the laboratory,

Thump! Thump! Thump!

The demon Tanjiro has awakened in this absolutely sealed underground space!!

The moment consciousness returned, the temporary ruler of this body was experiencing an incredibly rich internal monologue.

"Snort."

He snorted coldly in the darkness of his Sea of Consciousness, and a sneer of looking down on all living beings appeared on his arrogant face, which belonged to a demon.

He felt as if he had slept a short but long sleep.

Heaven have mercy!

If we really have to calculate the time of his birth, his independent consciousness has only existed for a day or two at most from the moment he was born until now.

What did he experience in the past day or two?

From the moment it was born, it discovered that it had overcome the fatal weakness of sunlight!

The feeling was as wonderful as waking up to find yourself the world's richest person.

He believed himself to be the chosen one, a unique god in the world!

He just wanted to fulfill his duty as a god, casually destroy the world, and incidentally roast that annoying, expressionless swordsman into dried salmon.

What unforgivable crime did he commit to deserve such inhumane physical bullying?

"That bastard!!"

Tanjiro gritted his teeth inwardly!!

He secretly vowed that once his perfect body regained its energy, he would tear that guy to pieces and hang him on the top of Mount Kumotori to dry!

Fueled by this intensely burning rage of revenge, Tanjiro abruptly opened his dark red, vertical pupils!

"Mortals! Prepare to bear the wrath of the gods!"

He shouted arrogantly in his heart, bracing himself to meet the terrified and trembling gazes of the human swordsmen outside.

However.

When his gaze refocused, what came into view was not a battlefield, nor were there swordsmen holding Nichirin Blades, ready for battle.

It was a medical light bulb so bright it could blind a dog!

"Nani?"

Tanjiro was blinded by the bright light and instinctively reached out to shield his eyes, but suddenly found that his arms felt as heavy as if they were filled with lead.

Not only his arms, he tried to move his legs, and even tried to twist his neck.

It didn't budge an inch!

He rolled his eyes in shock, finally realizing his current predicament.

He was lying sprawled out on a metal operating table.

His wrists, ankles, waist, and even neck were all tightly fastened with super alloy restraints as thick as an adult's arm!

????

Just as Tanjiro's brain briefly went blank, two faces wearing white medical masks slowly entered his field of vision.

"Oh my, Miss Tamayo, look! Our noble and Perfect Lifeform has finally deigned to open his eyes."

Shinobu Kocho's purple eyes curved into beautiful crescent moons, and her tone was so sweet it was unsettling.

She changed into a white hazmat suit, over which she wore a transparent isolation gown, exuding the dangerous aura of a research fanatic.

"His vital signs began to surge, and his heart rate reached 180 beats per minute. It seems that his ghost blood activity has recovered to 70%."

Standing to the side, Tamayo wore a serious scholar's expression, holding a notebook in her hand and writing something rapidly.

Behind the two stood a short-haired boy with a fierce-looking face.

Yushiro was carrying a huge stainless steel tray, which was filled with all sorts of cold instruments that made Tanjiro stand on end.

"You lowly insects!"

Tanjiro instantly flew into a rage, opening his mouth full of sharp white teeth and letting out a deafening roar.

"Let me go! Do you even know what you're doing?!"

"I am the ultimate being, surpassing even Muzan!"

"... With just the slightest flick of my finger, I could reduce this wretched place, along with the entire mountain, to ashes!"

Shut up! You noisy piece of trash!

Before Shinobu and Tamayo could even speak, Yushiro jumped out like a rabid dog guarding its food.

Without any hesitation, he smacked Tanjiro hard on the forehead with the tray he was holding.

"When!"

"Shut up! If your saliva dares to splash on Tamayo's pristine white coat, I'll rip your tongue out and use it as a mop!"

Yushiro cursed viciously.

"How dare you knock on God's head?!"

Tanjiro was absolutely furious. He had never suffered such humiliation in his entire life (although it had only been a day or two)!

"You ignorant ants! You brought this on yourselves!"

Tanjiro's eyes instantly turned blood red. Without further ado, he prepared to unleash a devastating attack on the ignorant medical staff.

"Blood Demon Art-- "

Tanjiro took a deep breath, his chest bulging, and the veins on his body standing out.

"Turn to ashes, Heat Haze--!"

He let out a desperate, all-out roar.

The expected sea of blood-red lava that could evaporate everything did not appear.

Not even a tiny spark was seen.

"Puff..."

A thin wisp of black smoke slowly drifted out of his nostrils, swirled twice in mid-air, and then completely dissipated.

A moment of silence fell over the entire basement.

Tanjiro stared blankly at the ceiling, his usually savage vertical pupils now filled with deep embarrassment and confusion.

"What?!"

Tanjiro let out a frantic the Scream from the depths of his soul.

What kind of international joke is this?!

Where is my ultimate move, powerful enough to burn the heavens and boil the seas?!

Why didn't they even set off any fireworks?!

"It must be because my form was wrong just now!"

Tanjiro refused to believe it. He gritted his teeth and focused all his attention on his dantian again, trying to gather his power once more.

However, no matter how hard he tried to hold his breath or exert himself, his body was like a lifeless lump of mud, and he wouldn't budge no matter how he called out to him.

"Don't waste your energy, Mr. Perfect Lifeform."

Seeing Tanjiro appearance, his face turning red and his neck bulging from trying to hold it in, Shinobu Kocho finally couldn't help but burst out laughing.

She reached out and picked up something from the tray, waving it in front of Tanjiro's eyes.

"Do you think we can just come and go as we please in our Butterfly Mansion's top-tier wards?"

Tanjiro rolled his eyes, following Shinobu's hand.

When he saw what it was, his strong, devilish heart clenched uncontrollably.

It was a syringe.

But who the hell has ever seen a syringe thicker than an adult's thigh?!

The glass tube of that syringe was filled with several hundred milliliters of a suspicious, dark purple liquid!

The most outrageous thing was the needle; it wasn't a needle at all, it was practically a steel pipe used to draw blood from elephants!

"Did you see this?"

He pointed at the tube of deep purple liquid with a forced smile, his tone as light as if he were introducing today's new dessert.

"This is a 'Super Deluxe Supreme Calming Package' that Tamayo and I specially prepared for your arrival."

"It not only contains a thousand times concentrated Wisteria juice, but also thoughtfully includes a tiny bit of a special muscle relaxant—enough to instantly paralyze a hundred adult elephants from the neck down."

As he spoke, Ren flicked the enormous syringe with his finger with a rather cunning grin.

"Because considering that you are now Perfect Lifeform has overcome the effects of sunlight, with an amazing metabolic capacity."

"To ensure the medication was effective, we injected ten of these syringes into your veins while you were unconscious!"

"By the way, this muscle relaxant not only blocks your nerve conduction, but also perfectly inhibits the energy aggregation of Blood Demon Arts."

Ren clasped his hands together and smiled like a wingless demon.

"So now, forget about casting any Blood Demon Art. Even if you want to roll over in this bed, it depends on our mood."

"You... you bunch of devils..."

Tanjiro was in despair.

He lay on the cold operating table, his eyes almost brimming with tears of grievance.

Heaven have mercy!

Why is it so hard to be a villain who destroys the world these days?!

"Tamayo, stop wasting time talking to this piece of rotten flesh. Hurry up and inject him with the Demon Transformation Medicine Agent!"

Yushiro was waiting impatiently to the side, looked at Tanjiro with disdain.

"The sooner we get rid of this junk, the sooner you can get some rest."

"Okay. Yushiro, prepare drill bit number one."

Tamayo pushed up glasses that weren't actually on her nose, her tone serious and professional.

"Drill bit number one...?!"

Tanjiro's pupils dilated wildly upon hearing that word.

He watched in disbelief as Yushiro pulled a medical drill with spiral threads from the bottom of the tray!

"What are you trying to do?! Bring me the tonic!"

"Tonic!!"

"For this kind of thing, you need tonics!!"

Tanjiro let out a bloodcurdling scream, like a pig being slaughtered.

"Oh, don't get so excited."

Shinobu, with a sly smile on her face, pressed down on Tanjiro's shoulder.

"Because your cells are so strong right now, your skin is harder than a steel plate!!"

"If we don't drill a hole in your neck first, the needle for the Demon Transformation Medicine Agent simply won't go in."

Don't worry, we're professionals, it'll be done quickly.

"Buzz--"

The electric drill emitted a chilling roar.

"I'm warning you! I'm a god! Aaaaaah--!"

The moment the drill touched the skin.

From the basement came screams even more piercing than those from the Mount Kumotori.

Outside the door.

Giyu Tomioka stood ramrod straight in the corridor, the veins bulging on the back of his hand gripping the knife.

His deep blue eyes were fixed on the blast door.

Just now, he clearly heard that earth-shattering scream coming from inside.

He started going berserk.

Giyu's expression became more serious than ever before.

"Kanae, step back. Something's wrong."

Giyu forcefully pushed the hilt aside with his thumb, and the cold glint of the blade flashed under the red warning light.

He had prepared for the worst.

However, the scene inside the gate was completely different from Giyu's tactical deductions.

Inside the isolation room.

The few milliliters of the blue Demon Transformation Medicine Agent were successfully injected into Tanjiro's carotid artery.

The medication takes effect instantly.

This is not a fair contest at all.

Under the combined suppression of Wisteria Poison, muscle relaxants, and countless chemical agents, Tanjiro was already in a semi-paralyzed state.

When the power of the Demon Transformation Medicine Agent, specifically designed to dismantle the gene chains of ghost cells, surged in, the raging ghost blood was utterly routed!

No... don't...

Tanjiro let out a roar of extreme resentment from the depths of his consciousness.

He felt his power being frantically drained away, and that lofty divine perspective was rapidly collapsing.

"I've only just been born! I haven't conquered the world yet! I haven't even eaten a single bite of meat!"

He felt so wronged that he wanted to roll around on the ground.

But he didn't even have the strength to roll around.

Under the domineering effects of the potion, the demon Tanjiro was like an unlucky gamer whose internet cable had been forcibly unplugged, kicked off the control panel of this body, and ruthlessly pushed back into the deepest recesses of consciousness.

In reality.

Tanjiro's incredibly powerful demon body began to undergo an astonishing reversal at a speed visible to the naked eye.

The sharp fangs in his mouth gradually retracted, transforming into neat human teeth.

Those dark red vertical pupils, once filled with savagery and indifference, slowly lost their bestial nature and closed tightly together.

The most obvious one is the mark on his forehead.

The flame-shaped demonic runes that had originally exuded an eerie aura rapidly faded and shrank.

In the end, it turned back into that ordinary scar.

The terrifying aura emanating from him, which had sent chills down everyone's Super Hashira, vanished completely in a few breaths, like the receding tide.

Instead, the breathing rhythm of ordinary humans is used.

"Call..."

Seeing that the data on all the instruments had returned to the normal range for human indicators.

Tamayo let out a long sigh of relief and put down the notebook in her hand.

She turned her head and looked at Tanjiro, who was lying motionless on the bed. A hint of heartfelt relief flashed in her purple eyes.

"It seems the Demon Transformation Medicine Agent is still effective even against perfect cells that have overcome sunlight."

Tamayo's voice carried an undisguised excitement.

"We succeeded, Miss Shinobu."

"Yes, it's all thanks to how cooperative this child was with our 'physical opening' just now."

Shinobu Kocho removed her slightly dusty medical gloves, and the smile on her face finally returned to its usual relaxed state.

Although Yushiro didn't speak, his tense shoulders visibly relaxed.

He silently packed up those terrifying pieces of equipment, muttering to himself:

"That damn trash is finally quiet. Now Lady Tamayo can finally get some rest."

Outside the door.

Giyu Tomioka had already drawn his Nichirin Blade halfway out.

He stared intently at the heavy blast door.

Suddenly, the screams inside stopped.

Along with the terrifying Demon Aura, it vanished without a trace in an instant.

"What happened? Did they all die together?"

Giyu's brain was working at full speed.

Just as he was about to force his way in.

Click.

The heavy metal door was slowly pulled open.

Shinobu Kocho took off her medical mask, her purple eyes showing a hint of weariness, yet her smile was radiant.

She rolled her eyes as she looked at Giyu Tomioka outside the door, who seemed to be facing a formidable enemy.

"Mr. Tomioka, please put your knife away. This is a hospital, not an execution ground."

Shinobu held up two fingers and made a big "V" sign in front of Giyu.

"Alarm over. The unreasonable, Perfect Lifeform you brought back has become a well-behaved, ordinary patient with severe illness."

Upon hearing this...

At this moment, Giyu's usually taut, deep blue eyes finally relaxed slightly.

The thumb that was gripping the hilt of the knife slowly loosened its grip.