Reincarnation as Lower Rank Five in Demon Slayer

At this moment, Li Lei, as a ghost, sensed that dawn was approaching, and his research on the Blood Ghost Technique could only proceed the following night.

Li Lei immediately went into the basement of his house.

Daylight broke, and the sun shone brightly on the earth.

In the dark basement, Li Lei was researching his Blood Demon Art.

Blood Demon Art is the skillful use of supernatural abilities by a demon who has become powerful enough, and it comes from my understanding of Demon Slayer in my previous life.

Demons are divided into ordinary demons, demons with special abilities, and demons who are skilled in using their special abilities and can develop blood demon arts. Finally, there are the upper and lower moons of the twelve demon moons.

Li Lei carefully sensed his current power and abilities, and knew very clearly that he had transmigrated into the body of the original Lower Moon Five, Rui. He would soon be able to use his Blood Demon Art.

Because Rui in the original story is very similar to Muzan Kibutsuji's experiences before becoming a demon—both were frail and sickly—he was greatly favored by Muzan Kibutsuji.

As a result, I received far more of Muzan Kibutsuji's blood than ordinary demons.

Now, if I quickly master my superpower, I can develop my own unique Blood Demon Art.

Li Lei began to focus on sensing his supernatural ability and trying to control it. Slowly, a fleshy ball split off from the center of his palm. Under Li Lei's control, the split fleshy ball began to deform.

Gradually, under its own control, the fleshy ball can grow bone spurs, eyes, mouths, or transform into human organs such as hands and hearts, and possess the functions of these transformed organs, sometimes even stronger than their original organs.

But the brain can't change yet, Li Lei thought, maybe the brain is too complex.

It can transform into the shape of swords, but it's not as hard as swords. No one or any demon has experimented with parasitism and absorption yet; I'll have to try it again tonight. I'm also basically familiar with the use of Blood Demon Art.

I'm just waiting for night to fall so I can begin my first operation in Demon Slayer. Time ticks by...

The sun has set, and the creatures that roam the night begin to move, marking the start of a new day of hunting for predators!

In a quiet bamboo forest, a one-horned demon was wolfing down a dead man as if it hadn't eaten for days.

"Who is there?"

The one-horned demon asked with a ferocious expression.

At that moment, a white-haired boy emerged from the bamboo grove. The boy appeared to be about nine years old. However, his blood-red eyes and black pupils revealed that he was not human.

The one-horned demon asked warily:

"Where did you come from, you ghost? Don't you know this is my territory?"

Li Lei calmly replied:

“I just saw you eating while hunting and I got a little hungry.”

"If you're hungry, go find someone else to eat. Don't hunt in my territory, or I'll make you regret it if you attract the ghost hunters."

"It's a threat," the unicorn said threateningly.

Li Lei smiled at the one-horned ghost and said, "Don't be like that! We're all ghosts, and besides, my goal is..."

"Silk Thread Blood Demon Art - Blood Web".

In an instant, a large, blood-red net descended from the sky, trapping the one-horned demon on the ground. The one-horned demon struggled desperately on the ground, but the net was far too strong for him to break.

"You bastard, how dare you trap me! Just wait until I get out, I'll make you pay! Damn it, why can't this net be broken?"

"You have no future. You will be absorbed by me here!"

"You're going to eat me! You damned bastard, dream on! Blood Demon Art—Water Cannon!"

A water balloon the size of a basketball appeared in the air. With a splash, the water balloon hurtled towards Li Lei. Just as it was about to hit Li Lei, Li Lei swiftly swung his right hand.

With a loud bang, the water sphere flew straight back, and with a "smack," the unicorn ghost was struck on the head by its own Blood Demon Art, bleeding profusely.

"Your Blood Demon Art is quite impressive! Is it related to water?"

Li Lei calmly walked towards the unicorn ghost and spoke as he did so.

Li Lei walked up to him, squatted down, and said to the one-horned ghost:

“I’ve changed my mind. I want you to be my first collectible.” With that, Li Lei reached for the unicorn.

"Blood Demon Art - Parasitic Cage (Can absorb enemies to grow oneself, remotely control enemies; if the enemy is a demon, it can also control their Blood Demon Art and compress them into any desired size and shape)"

A red fleshy ball the size of a ping-pong ball appeared in Li Lei's palm. He pressed down with his hand, and the fleshy ball instantly entered the body of the unicorn demon.

The one-horned demon asked in a trembling voice, "What did you put inside me?"

Li Lei smiled and said to him, "It's good stuff, you'll find out soon enough."

The one-horned demon looked at the white-haired boy who was much stronger than itself, and fear spread throughout its body like wildfire. At that moment, a sharp pain shot through its body.

Please let go... With a hissing sound, countless fine threads shot out from the unicorn's body, wrapping itself into a sphere. The sphere then rapidly shrank until it was the size of a ping-pong ball.

Li Lei looked at the one-horned demon, which he had turned into a small ball using his Blood Demon Art. He thought to himself:

"This is the seventh demon I've hunted since I started hunting demons, but it's also the first demon I've encountered with Blood Demon Arts. Finally, I can try out the Blood Demon Arts I developed!"

Li Lei stretched out his palm towards the small ball, and the ball immediately jumped back into his palm with a bang and was absorbed into his body. He felt the small ball inside his body.

"I think I can use the Blood Demon Art of the One-Horned Demon now?"

As he spoke, he raised his palm towards the bamboo grove beside him, and a water sphere began to appear in front of his palm. A loud bang was heard, followed by a sizzling sound from the opposite side of his palm.

On the opposite side where its water sphere struck, dozens of bamboo stalks snapped. He looked at the image he had created with his One-Horned Demon Blood Demon Art.

Immediately, a joyful smile spread across Li Lei's face. Sure enough, it was feasible to use his Blood Demon Technique to control other ghosts and thus control their Blood Demon Technique.

"Alright! Next, we'll bury the human remains that the unicorn left behind on the spot."

Li Lei walked to the corpse, touched the ground with his right hand, and activated the Silk Thread Blood Demon Technique. Countless white threads surged from his palm and penetrated the ground, crisscrossing like tree roots to form a unified whole.

Li Lei raised his hand, causing a large clod of earth to rise from the ground, creating a large pit. He then set the earth aside, placed the mangled body of the unknown person into the pit, and covered it with earth.

They placed a bamboo pole in front of his grave as a tombstone and said, "Rest in peace, my unknown brother."

As dawn approached, Li Lei thought, "I should go!"

Time flies, and a month has passed in the blink of an eye. In the courtyard where the Lei family once lived, under the silvery moonlight, sat a black-haired boy. This boy was none other than Li Lei, who had transmigrated a month ago.

By this time, Li Lei had already been able to change his hair color and physical characteristics as a ghost, making him indistinguishable from an ordinary person, except that his complexion was a bit pale and he looked somewhat unhealthy. Ordinary ghost hunters would not be able to tell that Li Lei was a ghost.

In the past month, Li Lei has devoured all the ghosts in the vicinity, plus the six he had absorbed earlier, and the one he had controlled. All sixteen ghosts in the area have been eliminated by Li Lei.

However, apart from the one-horned demon, all the demons with blood demon magic are ordinary demons, and none of them have developed blood demon magic.

Li Lei sat cross-legged in the center of the courtyard, looking at the moon in the sky, and couldn't help but think.

"The moon shines by reflecting sunlight, but why are ghosts afraid of sunlight but not moonlight?"

"Is it because there's something in the sunlight that can harm ghosts, or because the moon's reflection isn't strong enough? Never mind, I'll think about how to become stronger!"

In this month, I have gained a lot of control over my body. I can change my human form from 5 to 20 years old, and even my ghostly aura has become very weak.

At that moment, a series of knocks sounded on the door.

"Are you home tired? Please open the door."

Li Lei replied, "Please wait a moment, I'll open the door right away."

Li Lei walked to the gate of the courtyard and opened it. Outside stood a middle-aged man of average appearance, dressed in a light black kimono, behind whom was a carriage loaded with various goods. The man was a reputable merchant in town named Yagi Seiichiro.

"Mr. Seiichiro Yagi, please come in and have a seat!"

"No, I'm not tired! I still have to deliver goods to other towns! I'll get you the wisteria bonsai you asked me to bring right away."

As Yagi Seiichiro spoke, he took a wisteria sapling covered in clusters of purple blossoms from the carriage behind him.

Li Lei looked at the wisteria sapling, feeling somewhat uneasy. He frowned and said to Yagi Seiichiro:

"Mr. Seiichiro Yagi, could you please hold it and place it in the middle of the yard? As you know, I've always been frail and sickly, and my parents passed away a month ago..."

Seiichiro Yagi looked at me with a sympathetic expression and said:

"Of course, just put the wisteria seedling in the center of the yard. Let me know where you want to plant it later, and I'll help you plant it."

Kiyoichiro Yagi smiled and said to Li Lei, "Don't worry, it's free!"

Kiyoichiro Yagi gently placed his hand on Li Lei's shoulder and said to him, "Lei! I am deeply saddened by the death of your parents, but they were killed by burglars who broke into your home so that you could live a good life."

"I will!"

Li Lei replied

"I'm tired! I'll be going now! I still have goods to deliver!"

"Take care, Mr. Seiichiro."

After Yagi Seiichiro left, Li Lei closed the courtyard gate and went to the wisteria sapling.

Li Lei, standing in the courtyard, looked at the blooming wisteria saplings and recalled that in his previous life, there were several items that could counter demons in Demon Slayer: the sun, the Nichirin Blade's decapitation, and the blooming wisteria.

While wisteria flowers are generally effective against most demons, they are less effective against the Twelve Demon Moons.

In the original work, only Shinobu Kocho, the Insect Hashira from a family of doctors, was able to kill a Lower Moon demon with wisteria flower poison.

As a ghost, Li Lei needs to overcome these weaknesses, and starting with the wisteria flower is just right, as it is the only item that Li Lei can currently overcome.

"Wisteria, today I, Li Lei, will defeat you here!"

He then raised his right hand, grabbed a wisteria flower, and slowly absorbed it into his body.

Li Lei, who sensed the toxins in the wisteria flowers damaging his cells, was not worried.

Because the amount of toxin in a single wisteria flower is relatively small and the concentration is low, the toxin from wisteria flowers that enters the body can only destroy a small portion of the cells.

Soon, all the cells in Li Lei's body developed some resistance to the wisteria flower toxin.

Alright! We can begin today's experiment. Li Lei reached for the wisteria sapling with his right hand.

"Blood Demon Art - Formless Parasitism (possesses parasitic absorption and assimilation, remote control, and the ability to transform all things; this is Li Lei's second application of his Blood Demon Art)."

Several sharp, fleshy thorns shot out from Li Lei's palm and pierced into the wisteria sapling. The wisteria began to tremble, and all the flowers slowly turned blood red.

About 20 minutes later...

"Success!"

Seeing the wisteria blossoms before him, their color having changed from purple to blood red, Li Lei immediately took control of them. Under Li Lei's mental control, the blood-red wisteria blossoms emerged from the pot, and, seeing its own achievement, excitedly drew the blossoms into its body, sensing their power.

"Hmm, what's this?"

Originally it absorbed sunlight to grow, but now it absorbs moonlight and flesh to grow, and it also has some characteristics of my Blood Demon Art, such as absorption, parasitizing and controlling trees, and transformation.

After sensing its power, Li Lei began the second step of absorption and fusion. The blood-red wisteria flower, which had transformed into a sphere within his body, began to be absorbed and fused into all the cells of his body. As the fusion of the blood-red wisteria flower was completed,

Li Lei's resistance to wisteria poison has greatly increased, and he can absorb a small amount of energy from moonlight, but it would take him about a year to absorb the energy of an ordinary ghost.

Although the energy absorbed from the moonlight was minimal, it was still a pleasant surprise, and most importantly, it increased resistance to wisteria poison.

After all, overcoming a weakness reduces the danger.

Now, aside from the high concentration of wisteria flower toxin created by Shinobu Kocho, the Insect Pillar from the original work, he is no longer afraid of wisteria flowers blooming in large quantities.

……