People in Demon Slayer: The Journey That Began with Demon Slayer

Through research on Tsugikuni Iwakatsu's blood, the Butterfly Sisters and Tamayo have discovered that Tsugikuni Iwakatsu's blood plays a significant role in the human transformation drug currently under development.

The human transformation drug that the Butterfly Sisters and Tamayo had been researching had reached a bottleneck. No matter what methods they used, there was still no progress in the human transformation drug.

Through tireless research, the Butterfly Sisters and Tamayo, using the blood of Tsugikuni Iwakatsu as the main ingredient, finally developed a drug that could help demons overcome the effects of sunlight.

To prove whether the drug could work on demons, the Butterfly Sisters and Tamayo injected the drug into Mado, who was being used as a test subject.

However, after the drug was injected, Jian Tong did not overcome the sunlight. Instead, due to the effects of the drug, all the blood of the Ghost King in his body was destroyed, and he died on the spot.

The initial drug development failed, but it was not a complete failure either.

After repeated testing, it was discovered that when the medicine containing the blood of Ubuyashiki Amane, a member of the Shinto priest family, was injected into the demon's body again, the medicine containing the Shinto priest family's blood took effect, and the destructive power of the demon king's blood within the demon's body disappeared.

However, once the blood of the priests becomes ineffective, the destructive power of the drug will reappear, and the demon will die again under the influence of the drug.

In other words, this medicine can only be taken by Nezuko, because Nezuko, like Kokushibo, is a demon who is born with the bloodline of a priest.

The final product, a finished drug, was finally developed.

Tanjiro looked at the medicine in the small syringe, his heart filled with overwhelming excitement.

Tanjiro looked at Nezuko gently and said, "Nezuko, you will soon be able to stand in the sunlight. A new life is about to begin."

Filled with endless hope, Tanjiro carefully injected the medicine into Nezuko's body.

In her child form, Nezuko's body rapidly grows larger, reaching a normal size, before she enters a semi-demon form, with small demon horns growing on her forehead and willow-shaped patterns covering her limbs.

Under the influence of the medicine, Nezuko's body underwent tremendous changes, accompanied by extreme pain.

Nezuko's wailing echoed continuously in the room.

Tanjiro, seeing Nezuko rolling around on the ground, worriedly hugged her and asked Tamayo beside him, "What's wrong with Nezuko?"

Tamayo explained, "This medicine essentially changes the entire blood structure in Nezuko's body, so pain is unavoidable."

At this point, Nezuko had completely transformed into a demon, her body growing larger to resemble that of a woman in her twenties, with complete demon horns growing from her head and her entire body covered in willow-like patterns.

The extreme pain drove Nezuko to rage, causing her to abandon reason and open her mouth with sharp fangs, trying to bite Tanjiro's shoulder.

Yosuke swiftly extended his arm in Tanjiro's place, only to have Nezuko bite his arm tightly.

Nezuko bit Yosuke's arm, and blood dripped continuously onto Tanjiro's body.

Tanjiro looked worriedly at Yosuke's bleeding arm: "Mr. Yosuke!"

Yosuke shook his head and said, "Don't worry about me, just get through this!"

Seeing Nezuko completely out of her mind and screaming incessantly, Tanjiro began to sing the nursery rhyme that he used to sing to his mother and them when he was a child.

"Why are the rabbits on the hill so long? Because when they were little, their mothers ate long leaves, which is why their ears are so long..."

Whether it was the effect of the medicine or Nezuko regaining her senses, she released her grip on Yosuke's arm and stared blankly into the distance.

In Nezuko's mind, the song of her mother, Kamado Hime, echoed.

Nezuko recalled her childhood memories, where she and Aoi Kamado walked in the mountains, with Aoi Kamado singing a nursery rhyme.

"Why are the little rabbits on the hill so red? It's because their mother ate red fruit when she was little, which is why her eyes are so red."

Nezuko innocently asked, "Are your brother's eyes so red because Mom ate the red berry when he was in my belly?"

Kamado Aoi didn't answer, but smiled gently at Nezuko and said, "Nezuko, it's time to wake up."

...

Nezuko's eyes filled with tears, and she burst into tears. The demon horns on her head fell off, the willow leaf patterns on her body disappeared, and her body returned to normal. She fell into a deep sleep in Tanjiro's arms.

"Nezuko..." Tanjiro looked at Nezuko, whose tears were still wet in his arms, with a pang of heartache.

Tamayo drew a vial of blood from Nezuko's sleeping body for testing.

The test results relieved everyone; Nezuko's blood composition was now completely identical to that of Kokushibo.

In other words, Nezuko, like Kokushikatsu Tsugikuni, overcame the sunlight.

Chapter 112 The Divine Lord Appears

The next day, Nezuko awoke from her deep sleep.

Almost everyone was in the courtyard of the Butterfly House.

Even Giyu Tomioka rushed to the Butterfly Mansion after hearing about it, to witness the miracle happen once again.

Tanjiro took Nezuko's hand and walked step by step into the sunlight.

When Nezuko stepped into the sunlight unharmed, everyone cheered, while Tanjiro wept with joy.

Tanjiro knelt on the ground, pressed his head to the ground, and said sincerely, "I really... thank you all. Without your help, Nezuko and I might never have had this day."

Yosuke helped Tanjiro up: "All of this is the result of your own efforts. If you hadn't persevered and never given up on Nezuko, even with our help, it would have been useless."

Tanjiro looked at Yosuke, who was like a teacher and a father to him, with emotion. For Tanjiro, the people he respected the most were his master, Urokodaki Sakonji, and Yosuke, who had always helped him.

Zenitsu looked at Nezuko, who was still in a daze, and asked in confusion, "Why hasn't Nezuko regained her consciousness yet?"

Shinobu Kocho explained, "The medicine can only help Nezuko overcome the effects of sunlight; it cannot restore her consciousness."

Tanjiro ruffled Nezuko's hair and said, "That's enough. It's good that Nezuko can forget those painful memories."

With Nezuko's successful example, the Butterfly Sisters and Tamayo gained more confidence, and inspiration for a human-transforming drug emerged in their minds. They then immersed themselves in the research and development of the drug.

While laughter and whispers filled the Butterfly House, a gloomy atmosphere prevailed throughout the Infinite City.

There are many rooms in the Infinite Castle. Kibuy Muzan is in the main room, and he is having doubts about himself.

Kibuy's forces were weakened to an extremely low level, leaving only Doma, Hantengu, Nakime, and Inatama Kaigaku among the Twelve Kizuki.

Kibuy Muzan, who had originally hoped to overcome the sunlight through the priest clan, also had his dream shattered.

For the first time in a thousand years, Kibuyaku Muzan was confused. He had created countless demons, but had never found any clues about the Blue Spider Lily.

They thought the priests could help it overcome sunlight, but even after finally finding one, it was still useless.

Despite having become an almost perfect being and attained immortality, the weakness of fearing sunlight remained a thorn in the side of Muzan Kibutsuji, like a fishbone stuck in his throat.

The Demon Slayer Corps has now reached its peak of power, killing demons everywhere. However, no matter how angry Muzan is, he can't do anything about the Demon Slayer Corps.

Because there is an even more troublesome entity than the Demon Slayer Corps: Yosuke Ubuyashiki.

From the moment he became a demon, Yosuke Ubuyashiki, like a mad dog, relentlessly pursued Muzan Kibutsuji.

Once Yosuke Ubuyashiki finds an opportunity, he will be fearless of his own life and death, even if it means mutual destruction, he will drag Muzan Kibutsuji down to hell.

Kibuy Muzan couldn't understand Ubuyashiki Yosuke's thoughts. To such perfect beings as humans, humans should be like insects, to be crushed at will.

Now, only four of the strongest Twelve Demon Moons remain, and they are gradually becoming powerless against the Demon Slayer Corps and Yosuke Ubuyashiki's forces.

If we choose to go all in now and start a war with the Demon Slayer Corps and Yosuke Ubuyashiki.

With only the remaining four Upper Moon demons, it would be difficult to hold off the entire Demon Slayer Corps, let alone the demons created by Yosuke Ubuyashiki who also possess Upper Moon strength.

And Muzan himself will face Yosuke Ubuyashiki directly, and perhaps that day when he was driven to the brink of despair will reappear.

Now everything seems to have reached a dead end. To overcome the sunlight, it is still necessary to find the Blue Spider Lily, but for thousands of years, not even a single leaf has been found, and the Demon Slayer Corps and Yosuke Ubuyashiki are constantly hindering it.

Becoming the ultimate, perfect being who is unafraid of sunlight seems to be getting further and further away from Muzan.

Just as Kibutsu Muzan was questioning his existence, suddenly, the hairs on Kibutsu Muzan's body stood on end as he sensed an aura that terrified him appeared behind him.

Ghost Dance suddenly turned its head, but found nothing. Moreover, the aura that had terrified it had vanished, as if it had never existed.

However, when Muzan turned around again, he found a man sitting cross-legged in front of him.

Kibuy Muzan subconsciously used his whip to stab the man in front of him.

"Words of power? Rejected."

The man uttered a clear, ethereal sound, and an invisible force sent Kibutsuji's whip flying.

Kibuki Muzan was extremely solemn. The breathing techniques used by the Demon Slayer Corps' demon slayers and the Blood Demon Art used by the demons all produced a peculiar energy fluctuation.

However, the man in front of them did not exhibit any energy fluctuations when using his abilities.

Furthermore, no one can enter the Infinity Castle except with the consent of Kibu, Muzan, and Nakime.

Kibuy Muzan asked solemnly, "Who are you?"

The man's expression was neither sad nor happy: "Weren't you looking for me? Kibuyaku Muzan."

"God Lord?!"

Kibuy Muzan paused for a moment, then was overjoyed, never expecting that the God Lord would actually deliver himself to his doorstep.

Kibuy Muzan immediately used the whip again, trying to restrain the god.

Facing the whip, the deity simply spoke again: "Words of power? Force."

A terrifying force pressed Kibuyaku Muzan to the ground, rendering him unable to move.

Kibuy Muzan couldn't believe that he could be suppressed. In the past thousand years, apart from Yoriichi Tsugikuni, no one had been able to suppress him, not even Yosuke Ubuyashiki.

The God Lord looked indifferently at Kibutsuji Muzan, who was being pressed to the ground by gravity, and said, "I've come here this time to cooperate with you."

Kibuy Muzan suddenly remembered what the priest who committed suicide had said: when the boundary between humans and demons is blurred, the god will take the initiative to appear.

Kibuy Muzan was completely incredulous: "Could it be that a demon has already overcome sunlight?! Who? Ubuyashiki Yosuke?!"

The shrine priest coldly said, "It wasn't Ubuyashiki Yosuke; it was Tsugikuni Iwakatsu and Kamado Nezuko who overcame the sunlight."

Pressed to the ground, Kibuyaku Muzan clenched his fists, his sharp nails piercing his palms, blood dripping onto the ground. He said resentfully, "The goal I couldn't achieve even after a thousand years has been accomplished by them! I must devour them! Only I can overcome the sunlight!"

The god's tone was somewhat sarcastic: "Can you still do it now? Kokushibo has overcome the sunlight, which means he is qualified to use the Breath of the Sun. There is also Tanjiro Kamado, the chosen one who has mastered the Breath of the Sun. And you can only hide in the Infinity Castle like a stray dog."

Chapter 113 The Deviation from the Future

"What did you say?!" Kibuyaku Muzan's eyes widened in fury; no one had ever dared to mock him like this.

Faced with Muzan Kibutsuji's menacing demeanor, the priest coldly replied, "Is there a problem with what I said? Two people have already appeared who can kill you. Isn't that enough? You can only have a chance of survival by cooperating with me."

Kibuy Muzan gradually calmed down. The current situation was extremely dire for him: "I wiped out your entire priest clan, so why did you choose to cooperate with me?"

"I want to remove the biggest variable in this world and get it back on track."

Kibuyaku Muzan frowned and pressed, "The biggest variable? Who?"