I did nothing—
I originally thought that the little girl in Konoha was an exception, but I didn't expect that the world of Demon Slayer would be even worse.
————
On the bustling street, a boy with a scar on his head was hysterically shouting in the direction of a man in a suit and hat.
"Muzan Kibutsuji, I will never let you go! No matter where you go, I will chase you to the ends of hell to take your head! I will never forgive you!"
However, despite shouting this, he didn't follow, because he was holding a man down tightly.
This man had just scratched his wife because Muzan Kibutsuji had scratched his neck as he passed by, causing a drop of his demon king's blood to seep in.
The man's eyes immediately turned bloodshot, and he rolled on the ground in a painful and ferocious manner. In the process of transforming into a ghost, he even tried to eat his wife.
To prevent casualties among the people on the street, the kind-hearted boy had no choice but to give up chasing Muzan Kibutsuji, even though Muzan was the enemy who killed his entire family.
"Hey, let go of that man right now, or we'll get rough!" The police officers who arrived after hearing the commotion knew nothing about ghosts; they only saw the man's wife lying in a pool of blood.
The boy was fighting with another man with a ferocious appearance, so the police officer took out his baton and tried to pull them away.
"I'm sorry, I can't let him go. No one but me can control him, otherwise more people will get hurt." The boy was anxious; how could he explain?
"No one here can stop him except me. Please don't come any closer and leave now."
Just when the boy was at his wit's end, a gentle and pleasant voice came from the crowd.
"Blood Demon Art ~ Bewitching Blood, a visually enchanting fragrance."
People on the street suddenly saw a scene of flowers flying everywhere, and everyone was caught in a hallucination.
"Huh, what's this?"
"What?! What's going on? Why are there flowers everywhere?"
The boy stared intently in one direction, where a woman in a kimono and a boy with a follower were slowly approaching, and the other party smelled like a ghost.
"Let me help you," the woman in the kimono said gently.
"This smell... are you a ghost?!" the boy with the scar on his head exclaimed in surprise.
"That's right, I'm a ghost, and also a doctor. My name is Tamayo—"
Her scent was pure; it didn't lie.
An hour later, in Tamayo's house, his wife, who had been scratched by the demonized man, was sleeping on the hospital bed.
"Excuse me, that lady?" the scarred boy asked.
Tamayo said regretfully, "She's alright, but her husband..."
"Although I feel very bad, her husband has been tied up and locked in the dungeon..."
Tamayo stood up and said to the boy, "Let me introduce myself. My name is Tamayo, and this is Yushiro. We are both demons. Because of our profession as doctors, we only need a very small amount of blood to survive, so we don't need to eat people."
"Oh, sorry, my name is Kamado Tanjiro, and this is my sister, Nezuko. She's a demon too." The boy, Tanjiro, stood up, released his sister from the wooden box, and introduced her.
"I believe you are not demons who indiscriminately kill innocent people, because you have a clear scent of truth. By the way, Ms. Tamayo, do you have a way to turn demons into humans? My sister Nezuko is also a demon, but she has never eaten a human. I am searching everywhere for a way to restore her to human form."
This is his special ability: a magical sense of smell that allows him to not only smell all kinds of odors, but also the scent of all kinds of emotions.
Tamayo pondered for a moment and said, "For so many years, I have been searching for a way to turn demons into humans. Unfortunately, I haven't been able to collect enough demon blood. Otherwise, I might have been able to develop an antidote. Yushiro is the only child in the last two hundred years who has turned me into a demon."
Young Tanjiro was shocked, "Two...two hundred years, may I ask how old you are this year?"
Yushiro, standing nearby, immediately flew into a rage and punched Tanjiro in the stomach, yelling, "You bastard, don't ask a lady's age!"
Nezuko looked at her brother blankly, then at them, and lay on the ground, wandering around aimlessly. While they were chatting in the clinic, two demons were chasing Tanjiro, the boy with the scar on his head, down the street—because he was their leader, given the order by Muzan Kibutsuji.
The two people were a man and a woman. The man's eyes appeared in his palms, and the woman had several arms, each holding a ball...
"Ah, I've run out of medicine, Nagi-kun. I'll go get some from Dr. Tamayo." Kagome called out towards the basement and then skipped out.
Nagi Uchiha, who was conducting an experiment, responded, but for some reason, she felt restless and uneasy after the girl left, and even knocked over several test tubes while conducting the experiment.
"What's going on? Why do I feel uneasy, even though there's no danger?" Uchiha Nagi stopped holding the test tube and frowned.
After taking a deep breath and calming myself down, I continued the experiment, but I still felt a strong sense of irritability.
"Phew~" Uchiha Nagi put down the test tube in her hand and went out of the basement for some fresh air.
As night fell, thousands of lights illuminated the surrounding area, making the habitable settlements with electricity appear dazzling, as if we had stepped back into the modern world...
"It's already night. The days in autumn and winter go by so fast..." Uchiha Nagi glanced at the sky; it was already dark. Wait a minute—
He suddenly realized where his unease came from: this peaceful world had no ninjas, but there was a creature that could only emerge in the darkness of night—the demon.
After activating the Mangekyou Sharingan, Nagi Uchiha's mental strength was extremely powerful. He was certain that his agitation wouldn't come without a reason, which meant there was danger.
Kagome is in danger—
Thinking of this, Uchiha Nagi suddenly opened her eyes, and three tomoe appeared in them.
Whoosh—the next second he leaped onto the roof and disappeared.
"The seventh form, the droplet wave pattern, thrusts and curves."
Tanjiro, the protagonist of the Demon Slayer world, is using Water Breathing to fight two demons who have found the Tama family by smelling his scent.
They were a man and a woman, subordinates sent by Muzan Kibutsuji to hunt him down.
"To be killed by me, the Twelve Demon Moons, is an honor for you! Come on, let's play until dawn, hahaha!" The woman with six arms laughed excitedly.
"Hey, Zhu Shawan, remember not to break the head of that kid with the flower-shaped decoration on his ear. We need to take it back to report. Ugh, it tastes awful." Another man took a fair arm and bit down on it with his mouth, which was split open to the ear.
"Why does the ball curve?" Tanjiro asked, puzzled. The female demon in front of him was hitting a ball with tremendous power, but what he couldn't understand was that the ball could curve and attack them.
This made it incredibly powerful, like a missile with its own tracking capability. Tanjiro was too busy to even dodge it, let alone cut off its neck.
"You...you actually killed someone!" Tanjiro roared in anger. The hand the other person was holding was still dripping blood, clearly indicating that the killing had just taken place.
"Oh, this? Heh, I just ran into her on the road. It seems she was looking for that traitor Tamayo. She looked young, so I ate her. I didn't expect the meat to be so awful," said Yahaha, the demon man with eyes on his hands.
Tanjiro was furious and was about to use [Sixth Form, Twisted Whirlpool - Ryu Ryu] to finish off his opponent when a cold, emotionless voice suddenly rang out.
"I'll handle this man..."
————
Under the dim starlight.
The ground was littered with tattered clothes, and besides the bloodstains, only a head remained.
There was a basket on the ground, which was used to hold the medicine that Tamayo had taken, but now it lay there all alone.
Uchiha Nagi reached out with trembling hands towards the head, brushing the hair from her face—it was Kagome...
This girl, whom I had only known for a few days, is now resting here. She still had a cheerful smile on her face, which is probably the only good news, because she may have died without feeling any physical pain.
Nagi Uchiha's hands, shoulders, and legs trembled uncontrollably.
It wasn't fear, but anger, so anger that my body trembled uncontrollably.
Suddenly, he raised his head, and the three tomoe in his eyes had transformed into the Mangekyou Sharingan with a plum blossom pattern.
The kaleidoscope spun incessantly, unleashing a massive surge of ocular power that emanated an evil yet powerful aura—