A Demon King Through The Worlds

"I found!" Tanjiro exclaimed as he crouched down to look at the small blue flower on the ground.

Seeing the blue petals that opened like a spider's legs, it becomes easy to discover what flower it is - The Blue Spider Lily.

Looking at the flower that seemed to glow faintly, Tanjiro remembered the vest instructions Lucian had given him.

'If you find the flower, it won't be difficult to get it, I don't have many requirements, just bring it along with the roots.'

"Pull out the roots, don't break the stem." Tanjiro said, taking out a small knife.

He crouched down and began to dig around the base of the flower, and then he slowly pull it out while cutting the deeper roots.

He touched the roots that were still attached to the flower, to remove some of the soil, before putting it in a small bag he was carrying.

Then Tanjiro anxiously ran back home.

Meanwhile, inside the Kamado family house, Lucian told Hanako, Shigeru and Rokuta fairy tales, some oriental tales, others western.

Momotaro's tale...

Tale of the Bamboo Cutter...

Urahisma Taro...

Snow White...

Little Red Riding Hood...

"Wow! The hunter managed to save both of them from the wolf's belly!" Shigeru said in amazement.

"...Are there really such scary wolves?" Fear appeared on Hanako's face, as she thought about the possibility of her being swallowed by a wolf.

"Yes, in fact, there are even scarier wolves." Lucian replied, remembering the beast of Gévaudan.

"In Gévaudan, France, a large wolf appeared in 1764, there were more than 200 attacks, more than 110 deaths and almost 50 injured. They said he was over 80 centimeters tall and 180 centimeters long." He was counting, until he was suddenly interrupted.

"I found the blue spider lily!" At this moment Tanjiro rushed into the room, interrupting the reactions that those present were about to show.

"Did you find the blue spider lily?!?! Where is it? Did you pick it up?" Lucian stood up in exasperation, a wave of joy passing through his entire body, a big smile appearing on his face.

He eagerly took Tanjiro by the shoulders as the questions fell like rain.

"Yes, I got it" Tanjiro quickly nodded, a little intimidated by Lucian's excitement.

'Is curing this illness so important?' Of course, Lucian managing to cure the illness that plagued him would only make Tanjiro happy.

Well... Maybe not so happy if he knew it would cure the weakness demons have to the sun.

If Lucian knew the question Tanjiro asked himself, he would certainly say 'Totally and absolutely important'.

Tanjiro then took the small bag that was hanging on the left side of his body, opened it and took out the blue spider lily.

Lucian's hands shook as he took the flower, the growing euphoria surprised even himself.

'Is it part of the body's instinct? Or is it a remnant of Muzan's obsession?'

"Thank you" Lucian said, taking a deep breath in an attempt to calm down.

After that he ran to his room with the flower in hand.

TUM!

Impatiently closing the door, Lucian put the blue spider lily into his mouth, chewed a little and swallowed.

A warm stream began to flow through his body, as if every cell in his body was becoming active.

In the next moment, he fell to his knees on the ground, his muscles contracting and expanding.

The veins on his arms and face swelled and writhed, as if earthworms were crawling beneath his skin.

Excruciating pain coursed through his skeleton, as if his bones were breaking.

His muscle fibers tearing.

Cracks opened in his skin.

It was as if he was collapsing from the inside out.

And the truth is that something similar happened, with your cells devouring each other.

The new cells, those that had already been transformed after ingesting the blue spider lily, were frantically devouring the obsolete cells.

A large amount of flesh and blood expanded, forming an egg around Lucian.

The intricate process of creating and destroying his cells continued.

Driven by the mutagenic and supernatural abilities of the blue spider lily, something at the core of his being changed.

Both the DNA of his body and the essence of his soul were sublimated.

Her heart beat like a drum, pumping a large amount of new blood.

Better blood. A more controllable, more mutagenic, more poisonous and more restrictive blood.

This way the failure rate in creating new demons is reduced, in addition to being faster.

His control over demons has also been improved, now basically being able to bind even the soul.

And for offensive purposes, blood toxicity more than doubled.

"I have achieved 'perfection'." Lucian laughed lightly, moving to get out of the "egg".

Thus completing its "rebirth".

Stretching his body, Lucian took the extra pair of clothes that were next to him and put them on.

The previous ones had been dissolved.

"This comfort...I feel that the body-soul compatibility has been improved. Really magical."

"Feeling this sublimation is invigorating."

Then he opened the window, and went out through it.

He opened his arms and felt the sun hitting his skin, the warmth spreading over every inch of his body.

On August 2nd, he came into this world.

On August 12, he met the Kamado family.

On August 27, Tanjiro found and gave him the blue spider lily.

Now, on August 28, he again felt the warmth and light of the sun.

'The important thing is not the sun, it is freedom.'

Hundreds of wars have already been fought for freedom.

For freedom, hundreds have already died and will still die.

'And now it is impossible for any sslayer to kill me. Nichirin has become useless, and there are no drugs that can do it, nor will there be for a long time. Probably never.'

'After destroying the Demon Slayer Corps and collecting the different types of breath, I will leave for another world.'

"Life is so good~" Lucian commented before starting to walk through the forest, enjoying the faint smell of flowers, the chirping of birds and the light breeze.

The pulse of life is so intoxicating.

And there he was, with a new life.