Demon Progenitor Development Project

Muzan's condition worsened once again due to his depressed state of mind.

The faces of many men, women, and children—Fujiwara no Yorimichi, Fujiwara no Shugo, Kisaragi-hime, and others—appeared in Muzan's increasingly confused mind due to the high fever.

Human faces twisted and distorted into alien shapes, transforming into the legendary blue-faced, fanged monsters.

His body, convulsing from the high fever, trembled even more violently. It felt as if thorns had sprouted from his bones, slowly hooking at his flesh and meridians, torturing him relentlessly.

Is he going to die?

Fear gradually spread like ink on water.

Don't want to die!

Don't want to die!

Who will save him?

Suddenly, Muzan remembered Shugo again.

Where is Shugo?

Go find him. This intense thought lingered in Muzan's mind.

His excessively weak body made it difficult for him to get up; his attempts to move were more like those of a wriggling maggot, revealing his ugly state.

With his empty pupils staring at the ceiling, Muzan struggled to endure the weakness and pain.

Unbeknownst to us, the human body slowly disintegrates at an extremely rapid pace, with the thin and weak soft flesh being replaced by strong and powerful muscles, gradually revealing smooth and sexy lines. The delicate and fragile skin hardens into an impenetrable defense against blades and spears.

At the same time, another strong appetite burst forth.

So thirsty, so thirsty.

Muzan gripped his throat, his sharp nails already drawing blood.

smell good.

Muzan's nose twitched, chasing after the indescribable fragrance.

He hadn't smelled anything for a long time.

The maid on night watch looked at Muzan in horror, who seemed to be acting strangely, and before she could react, she was tackled to the ground.

His neck was ripped open, and the high note in his throat came to an abrupt end.

This was followed by the incessant sound of dripping water and the tearing sound of sharp teeth snapping at their prey...

Having barely filled his stomach, Muzan finally came to his senses, looked at the mess in front of him, and fell into silence.

Tension, confusion, fear, nausea... a whole host of emotions.

With a tense expression, Muzan temporarily hid the remains. Looking at the blood-soaked wooden planks, Muzan realized that he was powerless to do anything about it.

My first thought was to ask Shugo for help.

Of course, he did it without thinking much about it.

Having put on his outer garment, Muzan got up and rushed out of the hospital.

The servants sweeping the courtyard stared in disbelief at Muzan's rapidly departing figure; even a healthy person couldn't keep up with his swift movements.

"Wait..." Seeing the other person walking further and further away, the servant hurriedly opened his mouth to stop him, then shut his mouth and quickly followed, inwardly groaning.

Could it be that this young master Yueyan has been possessed by a demon?

Upon arriving in Heian-kyo, a city known for its "Night Parade of One Hundred Demons," the servant immediately had this thought, slowing his pace and shivering.

Unaware of his own transformation, Muzan's speed increased rapidly, almost becoming a blur, as he headed towards the courtyard where Shugo was located.

It was already night, but the palace of Hiiragi was still brightly lit.

Shugo stared dumbfounded at Muzan who had suddenly barged in.

"Yueyan? You..."

Before he could finish speaking, the other party charged at him like a bull, knocking him to the ground.

Ren Guang, who was standing to the side, also went from being shocked to being filled with anger.

Muzan has become a demon.

Shugo, who had been hit, maintained a surprised expression on his face, while a strong smell of blood filled his nostrils.

After more than ten years of planning, he is finally reaping the rewards.

Muzan, who had been suddenly struck by a drastic change, huddled in Shugo's arms like a fledgling bird shivering in the wind and rain.

"Alright, Tsukihiko, Nene, I'm here." Shugo said gently, patting her back as he did so with his usual tender expression.

Someone has died, so Muzan is no longer safe.

It's time to pack up and run.

Ren Guang, who was standing to the side, suppressed his displeasure with Muzan, hurriedly ordered his servants to leave, and took a deep breath.

What kind of bewitching potion did Yueyan give the young master?

How dare the young master indulge him like this!

He's not even as good as my own brother!

Doesn't the way the young master and Ubuyashiki Tsukihiko look confirm the rumors in the capital?

Ren Guang gave a series of instructions in a low voice, telling people to keep the news a secret and to keep it firmly locked away. Tonight, Ubuyashiki Tsukihiko was recuperating and had never left.

Shugo gently comforted him, without questioning Muzan's unusually large size compared to before.

After getting information from Muzan, Shugo arranged for Jinko to clean up the remaining traces.

As expected, Shugo's request to send Muzan to the side hall was rejected, leaving him with no choice but to let Muzan stay.

The candle went out, plunging the room into darkness.

Exhausted from his busy work, Shugo quickly fell asleep.

Muzan opened his eyes again, staring intently at Shugo's peaceful sleeping face. His eyelashes, which trembled slightly with each breath, were clearly visible, each one distinct.

Muzan watched him like that all night, afraid that the other party would disappear in the blink of an eye.

As dawn broke, Hiiragi, whose biological clock had been regulated, naturally woke up and prepared to change into his court attire for work.

Seeing that Muzan was still asleep, Shugo tiptoed out of bed and went to the side hall, something he had already instructed others to do.

Since the patient needed rest, Shugo moved these trivial matters to a side hall, giving Muzan a quiet environment to sleep.

The servants had already prepared the toiletries and then withdrew.

Wash up and change clothes.

The sounds of water and fabric rubbing reached Muzan's ears.

His eyelashes fluttered slightly. Muzan pretended to be asleep, too embarrassed to get up. Yesterday's events were truly awkward. Muzan, whose mind was clearer than usual, realized something...

It seems like my body has changed again?

Did I hear it this clearly before?

Muzan had a very strange feeling. He could subtly sense the distance between himself and Shugo, and he could also sense how many people were around.

Natural instinct.

Just like wild animals in the jungle instinctively assessing the amount of food available.

Muzan only got up after Shugo left.

Just as he was about to step into the morning light, a strong sense of crisis made Muzan stop in his tracks.

The sickly-looking boy stared at the golden-shine-drenched wooden floor with an incredibly terrifying gaze.

I can't be in the light anymore?!

The doctor, who had been studying medicine day and night all night, had just lain down when he was urgently summoned to treat a patient.

"How could this be?" The doctor frowned as he examined the patient, whose appearance had changed drastically from before.

photophobia?

Could it be because of that medicinal herb?

The doctor solemnly placed the pulse pillow and respectfully indicated that he would improve the prescription.

Muzan secretly stretched out his finger to touch the sunlight, only to watch helplessly as his finger turned to ashes as if it had been burned, with only the fingertip remaining intact in the shadows.

The intense pain caused Muzan's face to contort in agony in an instant, and he reflexively withdrew his finger.

The severed finger quickly regenerated at a speed visible to the naked eye. If it weren't for the intense pain lingering in his heart, Muzan would almost have thought it was an illusion.

What exactly did he become?

Can't be exposed to light?

So what is he?

A rat in the sewer?

Muzan felt deeply insulted. The only good news was that his congenital weakness had been cured, and he was no longer afraid of pain.