Demon Slayer: I am a Demon.

After becoming a demon, she was once succumbed to the demon's bloodlust and killed her son, whom she had wanted to protect for life and watch grow up, with her own hands. She also killed her husband. Later, she was succumbed to the demon's desires and killed many other people.

What I did was enough to send me to hell.

I should have died a long time ago.

Ultimately, she and those ghosts are all the same.

Even if we can now overcome the desire to devour people, does that mean we can pretend that what we did in the past never happened?

At least, she won't forget what she did, and the pain she feels every day when she thinks about it.

She will also never forget Muzan Kibutsuji, who brought her so much pain.

If she had known that becoming a ghost would be like this, she would never have become a ghost.

There are many, many more demons who have had similar experiences. If Muzan Kibutsuji is not eliminated, there will be even more examples like her in the future, and some will even suffer more than her. After all, she was able to break free from that tragic cycle and rediscover herself, while the other demons will probably be forever trapped in their bloodlust and never be able to find their former selves again.

Have you ever seen Muzan Kibutsuji?

Kanae Butterfly, who was squatting by the door, turned around and looked at Tamayo in the basement.

"I've met you."

Tamayo nodded, her eyes filled with hatred and fear.

"Can you tell me what kind of ghost this is?"

Kanae Kocho gently stroked the hilt of her Nichirin Blade. Though her eyes were gentle, a chilling killing intent lurked deep within them.

If all sorrow and grief are to be released, and all demons to be freed from the cycle of hell, only by slaying Muzan Kibutsuji can the cycle be truly ended.

Chapter 218 Turning Ghosts into Humans

As Muzan Kibutsuji's close attendant, and being proficient in medicine, Tamayo was almost always by Muzan Kibutsuji's side long ago, before she was separated from him. She even participated in modifying Muzan Kibutsuji's body to increase the possibility of overcoming sunlight.

Therefore, Tamayo has a sufficient understanding of Muzan Kibutsuji.

When Kanae Kocho asked about everything concerning Muzan Kibutsuji, Tamayo naturally told her everything. She also learned that for many years, Tamayo had been searching for a way to kill Muzan Kibutsuji.

However, the more I learn, the more powerless I feel.

Tamayo had always hoped that a swordsman as powerful as Yoriichi Tsugikuni would appear again, because only such a powerful swordsman would have a chance to kill Muzan Kibutsuji. But a swordsman as powerful as Yoriichi Tsugikuni could never appear again.

Moreover, as time goes by, the powerful swordsmen of the Demon Slayer Corps are becoming weaker and weaker than before, and have even lost the inheritance of the 'Sun Breathing', the 'Crimson Blade' and the 'Mark', let alone reaching the 'Transparent World'.

Even now, Tamayo herself is somewhat confused, wondering if she still has a chance to kill Muzan Kibutsuji.

If it weren't for her hatred for Muzan Kibutsuji, Tamayo felt she probably wouldn't have been able to hold on.

…………

The raven flapped its wings and landed. Kanae, the butterfly, stopped talking to Tamayo, her purple eyes looking at Tamayo with less wariness.

"Lady Tamayo did not deceive me. My lord has agreed to see you."

"it is good."

Tamayo nodded.

"However, before you meet the lord, the two of you need to cover your faces."

"No problem, that's the thing."

Kanae Kocho personally stepped forward and blindfolded Tamayo and Yushiro with black cloth, then summoned a hermit and locked them in a dark wooden box.

…………

After going through countless twists and turns, Tamayo remained calm, but Yushiro was extremely irritable. If it weren't for Tamayo's repeated attempts to calm him down, he probably would have already broken out of the box.

Two days later, the box was opened.

Tamayo and Yushiro stepped out of the box.

"arrive."

Kanae Kocho nodded as she looked at the two of them.

"It's troublesome."

Zhu Shi bowed slightly and nodded.

Kanae Butterfly didn't say anything, but led the two forward.

Wisteria trees were planted everywhere. Walking here, both Yushiro and Tamayo felt uncomfortable all over. Moreover, with each breath of the fragrance of wisteria in the air, their bodies became more and more weak.

"I hate this place."

Yushiro gritted his teeth and endured it all. Fortunately, his body had been modified many times by Lady Tamayo. If it were an ordinary demon, it would probably have fainted by now if it entered such a dense area of ​​wisteria trees.

Soon, a building came into view, and two figures walked out of the building. Both had white hair like frost, wore white kimonos, and held palace lanterns in their hands. They were petite and had youthful faces.

The two are almost identical in appearance and temperament.

It was Hikaru Ubuyashiki and Hina Ubuyashiki.

Before long, they arrived at a room, where Natsumi Ubuyashiki and Hina Ubuyashiki also left.

The room was lit with candles, and in the flickering firelight, the tall man kneeling on the footstool raised his head. The upper half of his face, from the bridge of his nose upwards, was almost entirely covered in purple, like the bark of an old tree, while the other half of his face was also pale.

His entire face looked quite terrifying.

"My lord."

Kanae Kocho bowed slightly.

"No need for such formalities."

Kagaya Ubuyashiki shook his head. His voice was gentle and soft, but it was very soothing to listen to, making people feel happy and cheerful without them even realizing it, as if they could forget all their troubles.

Kanae Butterfly stood up and stood respectfully to one side.

"It's been a long time, Mrs. Tamayo."

Kagaya Ubuyashiki looked up and saw Tamayo walk in.

Despite the bumpy journey, it did not have much of an impact on Tamayo. Her long black hair was parted in the middle and styled into a large, low bun, with a flower hairpin securing her temples. Her eyes were soft, like a pale purple mist, and her lips were rosy.

She wore a deep purple kimono decorated with wavy pale purple branches and red flowers, and a wide beige sash around her waist.

She has a very gentle and mild-mannered demeanor.

Tamayo was also looking at Kagaya Ubuyashiki. The last time she saw Kagaya Ubuyashiki was when he was accompanying his father. At that time, Kagaya Ubuyashiki was just a child. Now, he is married and has children. Because of the curse, his appearance is almost completely different from what she had seen before.

"The changes are really huge; it's become like this now."

Tamayo felt somewhat sentimental.

"Lady Tamayo was still the same as when I last saw her."

Kagaya Ubuyashiki exclaimed, "She's still as beautiful as ever."

"Aren't all ghosts like that? They never die or age."

Tamayo shook her head, a hint of self-mockery in her voice. If she had known the consequences of becoming a demon, she wouldn't have become one, even with the temptation of immortality.

"How is Mrs. Tamayo's research progressing all these years?"

Ubuyashiki has maintained contact with Tamayo for many years, and even cooperated with her. Otherwise, it would have been impossible for Tamayo to have survived so many years of pursuit by Muzan Kibutsuji.

The collaboration between 'Ubuyashiki' and Tamayo was quite simple: they were trying to develop a drug that could turn demons into humans.

Now, neither Ubuyashiki nor Tamayo dares to hope that a swordsman as powerful as Yoriichi Tsugikuni will appear to kill Muzan Kibutsuji.

They began to seek another way to kill Muzan Kibutsuji.

One of their goals is to bring Muzan Kibutsuji into the light of day, something the Demon Slayer Corps has always strived to do.

Another method is the one that Tamayo has been researching for many years: how to turn demons into humans.

Tamayo believes that the only way to defeat an invincible monster like Muzan Kibutsuji is to turn him back into a human.

"We have achieved some research results, but they are not perfect."

Tamayo nodded.

Kagaya Ubuyashiki nodded, then clapped his hands lightly. Soon, a boy walked in, holding a vial of reagent.

Tamayo's gaze fell on the boy, and she was momentarily dazed: "Just like when you were young. Before I knew it, more than ten years had passed."

Kagaya Ubuyashiki's eyes were filled with grief: "If it weren't for the power of the priests, I'm afraid none of the men in the Ubuyashiki clan would have lived past their teens. No matter what, we must completely destroy that monster, Muzan Kibutsuji."

After saying that, Kagaya Ubuyashiki introduced, "This is my son, Teruya Ubuyashiki."

"No wonder they look so alike."

Tamayo sighed, but her gaze fell on the syringe in Teruya Ubuyashiki's hand.

"This is the poison from wisteria flowers that can kill ghosts."

After finishing speaking, Teruya Ubuyashiki looked up at his father. Seeing his father's approving gaze, he continued, "Mr. Su Mu once suggested that I increase my investment in the research of the ninja doctor on the toxins for killing demons. To this end, Ubuyashiki spared no expense in purchasing a large number of the most advanced equipment from outside. Under the ninja doctor's research, we finally developed the wisteria flower toxin that can kill demons. Even Upper Moon demons may not be able to survive this toxin."

Tamayo looked up, her eyes filled with disbelief. Over the years, there had only been one way to kill a demon: sunlight. Even when the Nichirin Blade severed a demon's neck and killed it, it was by borrowing the power of sunlight. There had never been another way to kill a demon.

This was somewhat hard for Tamayo to believe.

But the reagents right in front of her forced Tamayo to believe it.

Chapter 219 The Future Direction, Completely Changed

Tamayo personally tested some of the wisteria flower toxins in the reagent and felt her cells disintegrating. Even the powerful regenerative ability of a demon could not withstand it.

"It's a truly terrifying toxin for ghosts."

Tamayo put down the reagent with a pale face. Although her body was damaged, she still had a smile on her face.

"If we could inject this reagent into Muzan's body, could we kill him?"

Kagaya Ubuyashiki was filled with anticipation.

Tamayo closed her eyes, silently feeling the damage the wisteria flower poison was causing to her, then shook her head: "It should be easy to kill ordinary demons, and even the Twelve Demon Moons would be effective, but it will be difficult against that monster."

Tamayo clearly understood how terrifying Muzan Kibutsuji was. Even after being cut into more than a thousand pieces by Yoriichi Tsugikuni, he was still able to survive. Although the wisteria flower poison was strong, it was not enough to kill Muzan Kibutsuji. With Muzan Kibutsuji's strength, he would be able to expel the poison on his own in a certain amount of time.

"Although it cannot kill Muzan Kibutsuji, it is foreseeable that it will greatly weaken Muzan Kibutsuji."