Chapter 4: Muzan Kibutzuyi and the Blue Spider Lily

Tanjiro and Nezuko arrived at the place of their first mission and decided to go have lunch and look for information.

While Tanjiro ordered their lunch Nezuko asked some people.

"Excuse me... I was wondering if you know anything about the disappearance of young girls?"

"Oh yes... There had been some disappearances this past couple of days. Last night a young girl disappeared but we believe it was her fiance's fault" said an old man to Nezuko.

"You should be careful young lady. Is he your brother?" A woman asked, pointing at Tanjiro.

"Yes, he is my big brother" she said "and thank you for your concern" she smiled kindly.

"Anyway... Look for Tanaka. He's the fiance of the last girl who disappeared" she nodded and walked to Tanjiro.

She told him what they said to her and he nodded as she did.

"I will see if I can find him by the smell of his guilt" he said looking at her.

They ate their ramen and some tea a lady gave them as a present. Then the siblings left the restaurant and started to look around.

Tanjiro looked for the smell of the boy while Nezuko was asking other people around town.

Then the siblings met and shared the information they gathered and headed where Tanjiro found the smell of a demon and on their way there they met Tanaka.

"Excuse me... Are you Tanaka?" Asked Nezuko kindly the young man nodded "I'm Nezuko and this is Tanjiro... We heard about what happened to your fiance"

The man had tears in his eyes "no...nobody believes me... S...she just disappeared... We were heading to her house after dinner and... I turned and she was gone" his voice was shaking as he explained to the Kamado siblings. They looked at each other.

"Where were you when this happened?" Asked Tanjiro with a kind voice.

He led them there and Tanjiro picked the smell of the demon. It was already the night so the smell was mixed with the smell of a woman.

Tanjiro followed it while Nezuko was next to Tanaka trying to protect him as they followed her brother.

They reached a house and by the smell of blood Tanjiro hit the ground with his katana and a dark hole opened and he pulled a girl out of it as a demon jumped out of the hole.

He handed the girl to Tanaka "keep her safe!" Then Nezuko and Tanjiro stood in front of them as the demon grinded his teeth making a horrible sound.

Then another started to scream angry because the girl is getting older by the minute and she will taste bad, a third body appeared and he was able to speak more fluently.

Tanjiro and Nezuko started to fight the three demons as they were blocking attacks from them. Their movements were synchronized, when Tanjiro used a water form, Nezuko did one that had good synergy with his.

They kept their ground against the three demons, one of them jumped in the black hole on the ground so Tanjiro told Nezuko "I will follow him, can you protect them?" she nodded and he jumped in the hole. I was filled with a disgusting liquid like water but muddy.

Tanjiro found the demon and found a piece of leather with ribbons and hair bands inside, he grabbed it and put it in his pocket then used a water technique perfect to perform under water; a whirlpool formed and ripped the demon's body, then Tanjiro swam out of the hole.

"Tanjiro, are you ok?" asked Nezuko.

"Yeah, don't worry" he said as he looked at the remaining demon, Nezuko already killed the other.

Both siblings charged toward the demon and cut his limbs "Who is Muzan Kitbutsuji?" asked Nezuko.

"Where is he?" asked Tanjiro with his sword against his neck.

The demon shook his head and both of them noticed the panic in his eyes "No no... I can't tell you..." he could see the shadow of Muzan telling him to keep his mouth shut.

Tanjiro sighed, realizing he wouldn't tell them anything so he cut his head, pulling him out of his misery. Then the sibling headed to the boy holding the unconscious girl.

"Tanaka... take this... your fiance's ribbon should be here" he handed him the piece of leather "try to move on, it might be hard but you can do it"

He took it and realized she is gone for real "H...how dare you kid?! I lost someone really important to me... you are just a kid!" he said with tears in his eyes and full of anger then he watched Tanjiro's and Nezuko's hands, their hands weren't the hands of two kids and their eyes showed their hidden pain, he realized they suffered more than him "I..."

"It 's ok... we know it's hard but you can do it, just think what she would want you to do" said Nezuko with a kind smile and Tanaka just cried and nodded "Now please make sure she gets home safe" he nodded again.

Then her crow landed on her shoulder "Head north! head north... there's a demon killing people!" her voice was softer than Tanjiro's crow.

He noticed his crow fuming because she reached them first. Then they left the town heading north.

On their way they noticed the crows fighting, making the siblings laugh, then they chatted about the places they saw while heading to the next city. When they reached it, they were in awe as they looked around. It was full of light and people.

They were used to their little town and never saw a big city like this one, even where Giyuu lived wasn't as crowded as this one.

The older Kamado brother hasn't smelled anything yet so they stopped by a street cart and ordered dinner. When the food arrived, Nezuko had a bad feeling and her heart was pounding while Tanjiro looked to his right as a disgusting smell hit him.

"I can smell him... The demon that attacked our home!" He stood up and ran after that while Nezuko followed him.

The Kamado siblings arrived at the center of the town and Tanjiro followed the smell to a man. He touched his shoulder and the man turned around, he had red eyes and was wearing a black suit and a white hat that looked foreign.

Tanjiro and Nezuko were ready to unsheathe their swords when a girls voice interrupted them.

Tanjiro was paralyzed when he saw this "daddy, who are those kids?"

"I don't know sweetheart. Maybe they confused me with someone else"

"Or maybe they are lost," said a woman next to him.

Muzan looked at them and he felt his stomach twisted as he saw those earrings Tanjiro was wearing and looked at him with a mix of hatred and disgust.

"This man... Is the one who killed my family but... Does he have a family? Do they know he's a murderer?"

"We better keep going darling, I hope you find your parents' kids" he said and his hand moved at an incredible speed and scratched a man's neck making him start a riot stopping the siblings to say anything to expose him.

Tanjiro jumped on the man using his sword to stop the man from killing his wife, some veins popped on his forehead and screamed "Muzan! I will kill you! You won't keep hurting others! I swear it!" Muzan made a huge effort to control his anger. How dare that little brat say such things? He's a natural force, he should be thankful for keeping his precious life.

Tanjiro was trying to control the man as the police tried to see what was going on, when a sweet smell stopped everyone and formed a circle around them. Tanjiro realized it was one of the special techniques Giyuu told him.

"Tanjiro, Nezuko some demons, stronger ones, can use their blood to create a technique. They called Blood Demon Art and they can go from creating things to intoxicated humans in order to kill them"

"Y...you are a demon..." Said Tanjiro looking at a woman in her late thirties.

"Yes, but I'm here to help you, can you trust me?" He nodded and the boy next to her hit the man to get him unconscious then she added "I will meet you at my house. Yuichiro will take you there" Tanjiro nodded. And the blood demon art stopped and every one went back to normal then they went back to the cart and the man was angry at them leaving.

Tanjiro as an apology ordered two more dishes and they hate it then Yuichiro walked towards them and lead them to his house, acting really hostile towards them and dared to call Nezuko ugly which set the big brother on fire and started to fight him and Nezuko tried to calm him.

They walked in range of his blood demon art and a big house was in front of them. They walked in and the boy demon led them to the woman's meeting room.

"Thank you for trusting me and come here" she said as she gestured to them to take a seat "Yuichiro, please can you bring boiled water for a nice cup of tea" he nodded and walked to the kitchen to get it.

"Are you really a demon?" She smiled kindly and nodded "why are you helping that man?"

"Well... I'm a doctor as well and I can find a solution for that man" both kids were shocked to learn she was a doctor and, as if she could read their mind, she said "my name is Tamayo and I don't eat humans like normal demons, just like Yuichiro. We buy blood bags from hospitals and consume just the right amount to survive" she explained.

"Why are you explaining this to these stupid kids?" Yuichiro asked, annoyed by the guests.

"Yuichiro don't be rude with them" she said with a dead serious tone.

"I'M SORRY!" He said blushing and taking a bow as an apology.

Tanjiro and Nezuko looked at him with a hint of amusement in their eyes and Tamayo noticed it and smiled.

"Tanjiro, Nezuko... I brought you here to ask for your help" she said, adding sugar to her tea and Tanjiro and Nezuko did the same with their teas "Did you try to talk to a demon?" they nodded "and you noticed they looked like they were scared" they nodded again "I bet you wonder why" she earned another nod and smiled also earning Yuichiro's loving eyes "well I will explain it. Whenever Muzan turns anyone into a demon, he shares his thoughts and memories with them, he can access their brains and make sure they don't remember his face or how to find him and if they try to say something, he will kill them"

They remembered how the demon looked like he was really scared when they asked about Muzan and couldn't speak.

"They won't betray him so don't try to ask them and the twelve most powerful demons don't have this problem because they are too faithful to him that they won't tell anyone"

"And how are you telling us this?" he asked and before Yuichiro could say anything she lifted her arm to stop him.

"I was under Muzan's control more than four hundred years ago but a man, wearing earrings like yours, Tanjiro, fought against him and he weakened him, which led him to lose control over me. I left his side and he never gained control over me ever again. I turned Yuichiro into a demon and he's also out of his control" they nodded "now I brought you here to ask for a favor... Before that control was broken, I remember Muzan had something in his mind and that something was a flower. According to him, this flower turned him into a demon and he believes he can defeat the sun if he consume more"

"A flower? How can a flower do such a thing?" Asked Nezuko in shock.

"The flower is called the blue spider lily. According to Buddhism the red spider lily is a flower to pay tribute to the dead but the blue spider lily stops you from dying so it's the enemy of the dead" she said looking at them "I believe that, if you can help me find it and... If you can find me samples of the 12 demonic moons... I can create a way to defeat Muzan and his demons"

Before Tanjiro could ask something else. They received an attack destroying their place. Tanjiro and Nezuko moved away in time and there were two demons.

One with closed eyes and with arrows on his hands and a girl with balls.

The fight was hard and they worked as a team to make sure they were as synchronized as they were fighting the other demon but they realized that they had to fight separately in order to prevent their coordinated attacks.

Yuichiro gave them one of his eyes to see the arrows and that way they ended up winning against them, cutting their heads.

Tanjiro and Nezuko agreed to help Tamayo and find both things, the blue spider lily and the blood from the twelve stronger demons.

They left the house but before that. Yuichiro called Nezuko pretty and also called her awesome which made her blush and Tanjiro smiled proudly.

OOooOOooOO

I finally got a solution for Nezuko not being a demon. They will have to find the blue spider lily.

I looked up on Google about the red spider lily then read this amazing theory that the mangaka used the same flower with a different color to symbolize that the red one means tribute to the dead and the blue one to prevent someone from dying.

I hope you liked this. Next chapter will be about them meeting Zenitsu and Inosuke.