Chapter 12 - Acquiring the Nichirin Blade

It's been 15 days since we arrive at the Misty mountain, Tanjiro is currently practicing while I play with my kids. Kaguya is taking care of Nezuko and cooking. Yes, Tanjiro, Urokodaki and Nezuko knows I have childrens and they are shocked by that. They asked too many questions such as, Where did they come from?, How did I get a children? or something along the line.

My triplets are currently 1 year old and they are quite strong, like super strong. My oldest son, Asaraki can run in a speed of a sound, can lift 10 tons at the age of 1 and also, he is smart like me... What? Are you doubting me? Now to my second son, Kayama. He is quite most of the time unlike his energetic older brother but guess what, he fucking unlock his Tenseigan at the age of 6 months old. He also know how to fly with the use of chakra manipulation, must be an inborn trait he has. Now, to my beautiful and bundle of happiness. My First daughter and the youngest of all siblings. Akara, She is like his first brother, Energetic and she is a good girl. I mean, she heals an injured bird unconsciously by using MS which she unlock when I leave her last 2 months ago.

Overall, my family is overpowered and I am proud of it. Anyway, we are currently waiting for our Nichirin sword to be delivered and speak of the devil. Someone arrived with two swords wrapped on his back.

" My name is Haganeduka and I am the one that has forged the blade that will be used by Kamado Tanjiro and Akuma Otsutsuki." Hagane introduced himself as Tanjiro approached him and tell him to go inside.

" I am Kamado Tanjiro and this is Akuma Otsutsuki and he's childrens. Please come in and have a sit, Haganeduka san" Tanjiro said.

"This is the Nichirin Blades. I forged this Nichirin Blades" He continued while Tanjiro kept on insisting to let him inside.

Haganeduka kepts talking about what materials is needed to forge the nichirin blade, which I noted in my mind and see if I can acquire some of those materials. Soon, he looked at Tanjiro who was surprise by the mask.

"Hmm, You're the child of burning crimson. This is most auspicious for us to meet." He said, looking at the face of Tanjiro.

"No,no. I am Tanjiro and the child of Kei Kamado" Tanjiro answered.

" I didn't mean it like that. Your hair and eyes are all red, right? If a family is a business of making fire, then they will have a child like you. So I meant to say that it's a very lucky thing, so be happy." He said while pointing at Tanjiro.

"Is that how it is? I don't really understand at all" Tanjiro said in confusion.

"Alright, stop with that and let's go inside to have some tea" I interrupted them and dragged the two inside. We see Urokodaki, Nezuko and Kaguya sitting and talking to themselves, while the triplets ran to their mother for a hug.

" Here's your blades. Tanjiro, Akuma. Also, Akuma is quite famous at the Demon Slayer Corps and having the nickname, Kinslayer. Since he kills his fellow demon in a good way" Haganeduka told them about the recent gossip at the DSC that reaches their village.

" Try and Pull the blade out of it's scabbard. Nichirin blades has an another name, Blade of color change. The blade changes color based on each individual owner." Haganeduka said while looking at Tanjiro's blade. Soon, it changes to a color black making them surprise while the color of my blade is the same as my Flesh Blade except with the pulsing veins coming out.

"Black... There's not much known user with it and I thought I could witness the crimson blade this time. Looks like, I put too much expectations." He said with a defeated sigh.

Haganeduka walks outside to say goodbye as his mission of bringing the sword back is finish. But, two crows suddenly appears and shouted.

"Caww, Tanjiro and Akuma. Hurry and go to the North West Town, Caww! Hurry up and Go hunt the demons. This is the first assignment for you two, Caww! Remember this, Young girls constantly disappears every night, Caww!" Flying away, Tanjiro looked at me. Then to Urokodaki and he nodded.

We bid our farewell to him as I replace my old Nichirin Blade and gave it back to Urokodaki who takes it and put the sword at the shelf.

Walking towards our destination, we walked with Nezuko with us this time in her newly box. While Kaguya and kids are back to my Haven. We also got our Clothes, while mine is tailor made I requested to Ubuyashiki. A robe is what I requested. But the quality is the same as the typical uniform of DSC.

Arriving at the town were the mission they have given to us. The people are murmuring about what happens every night and the constant disappearance of the young girls.

" Kazumi san looks devastated. He was right beside Satoko when she was taken" The women chatting at the shop said while looking at the walking Young man we passed by.

" Kazumi san! I would like to know what happens last night, may I?" Tanjiro ask as Kazumi looked at him filled with sorrow.

Kazumi nodded as Tanjiro inquired him about the events that happens. While I walked around, sniffing for demons blood. Soon, I smell something underground and touching it. I feel the vibration of a demon heartbeat and it's blood running in it's veins.

Stomping to the ground, it caved in as I dive towards the swamp in this village. This action I've cause makes Tanjiro ran towards where the sound is and see a big hole where I stomp it.( Made up as I can't wait for night time to come)

Looking around, I find a demon who's forehead has three horns and it seems he is not the only one, as I see another two demons who also has a horn that ranges from one to two protruding at their heads. Except, they have the same feature which means they are a clone or demon who has a blood demon art.

"Who are you? How did you find us here?" He asked cautiously and I answered it back by using my flesh manipulating into a tendrils, shooting towards the three demons and my tendrils piercing them and consuming until the bodies become withered.

[ Swamp Demon

Blood Demon Art: Swamp Domain, Self Replication acquired.]

Going up, I see Tanjiro and the villagers looking at me.

"Sorry about that. But, I already finish the demons so you don't have to worry about Young girls disappearing anymore. Also, here's the collections of items that demon kept when he killed the young girls to track the record kills" I said while handing it to Tanjiro.

Our crows immediately appears when we finish our mission and told us about the next location and that is Asakusa in Tokyo Prefecture. According to the crows, there's a rumor that a demon is hiding in there and we need to investigate the town.

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.

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Asakusa, Night Time.

We arrived in a bustling town, full of peoples walking and buying foods. Having fun, it looks like there's a festival going on in Asakusa.

We walked into a stall to buy some tea when I smell something and it looks like Tanjiro also smell the scent that man's giving off. Also, I finally know the demon's name and he is called Kibutsuji Muzan. Tanjiro looked at me in hatred radiating in his body as I nodded at him and we ran towards the smell we detected.

Upon arriving, Tanjiro immediately grip the shoulder of a guy with a white hat and black tuxedo. Muzan turned around in annoyance and see Tanjiro but when I arrive, he immediately recognized me in a glance. I smiled at him and in a flash, my flesh blade is already on his neck ready to slice it off.

Making him surprised by my speed as he didn't see it coming. Also, I remove my limiters at 5% making my stats at SSS+. I also manipulate my blade to make it longer than it should be, the length is 2 meters. While a wriggling tendrils sips the neck of Muzan and getting more of his blood, petrifying him and making him not move.

" Well, well, well. If it isn't my "beloved father", the Demon King. I'll introduce myself since you might not know me when you turn me into a demon from the past year and months. I am Akuma Otsutsuki or should I have your family name in me. What do you think?" I said with a crazed smile, while Muzan is still standing there with hatred and helplessness in his eyes. Of course, this cause a commotion in this crowded place and someone also shouted Dad towards Muzan, making me look at the girl and a woman holding her.

"Oh, I have a sister? Well, that's a surprising one. Hello there my younger sister, what's your name? Sorry for what's going right now as our "father" currently has a business with me." I said while manipulating my body to have another complete arm and hand. I used it by patting the head of the little girl.

"You must be my step mother, If you are confuse. I am born in a not so normal means. If you know how demons breed then, you should know how I was born and become your step son" I said while police officers are coming( I think I've seen one in the manga where someone called a police)

"Ha..Hanabi, My name is Hanabi Kibutsuji. Please release my father" Hanabi, my so called little sister said while crying.

"Don't cry, here have some candy I bought. Hanabi, I have three children at my home. You can come and play with them if you want to come with me" I said, enticing the kid with many candies leftovers I buy for those triplets.

"Re..Really? Can I meet them? But... Can Mom and Dad come?" She said while I picked her up from her mother who's also petrified by what's happening.

"Of course, they can come but until then, I have to talk with our "father" first. So, be a good girl for the time being okay. Tanjiro, I want you to go back and report that Muzan Kibutsuji is found and captured by the two of us. Go now!" I said as I teleported back to my Haven with Muzan, Hanabi and the woman.

Releasing and introducing Hanabi to the triplets and also warning them about not using there full strength at her. They happily agreed and play with Hanabi.

Looking at the regenerating Muzan, I talked to him for something I really wanted to do since I came here.

"Now, the reason why I bring you here is to propose something and that is a collaboration to demons and humans. We can live in peace and I can give you my blood so you can walk at the sun. Of course, there will be a fights and arguments that will happen when we collaborate with the humans and how they will bring a topic of you kill thousands or millions of the human populations. But, can they really do anything about it." I said while telling Muzan my plans for the future generations to come. A modern society where humans and demons lives in harmony is a fantasy but I will make it happen with the use of Genjutsu.

"But how are you gonna do that? How will we gonna eat humans and to satisfy our hunger, we need them to be killed and eaten. They will not agree to this so called plans of yours" Muzan said while looking at me as if I'm an idiot.

" That... I don't know, I can go the negotiation way or Genjutsu way. All I want is the demons and humans to live together. Anyway, here's my blood and also it's a higher quality than your blood and can survive the sun" I said while giving him a drop of blood. The color of my blood are different, it's red violet mixed with a bluish green type of blood. This is how unique my blood is.

Muzan looked at my blood and when he smells it, he can immediately tells that it is the highest quality of blood he have seen. Gulping it in one go, A massive aura burst out in his body while I just stood there smiling and seeing multiple visions from the demons he turn into, even that one demon who thinks that she escapes the curse of Muzan has her vision shared by me through Muzan's Blood. Her name is Tamayo and through Muzan's blood, I know every single Blood Demon Arts of the demons and their location

Also, A new bloodline appears and replace my Demon bloodline.

[Name: Akuma Otsutsuki

Species: Deviant, Demon

Bloodline: Otsutsuki Progenitor, Demon Progenitor

Str: SSS+ (limiter 5% removed)

Agi: SSS+

Sta: Inf

Demon Slayer Sheets: Heightened Five Senses, Instantaneous Regeneration, Eight Lives, Absorption, Transformation, Unlimited Stamina and Endurance, Sunlight immunity, Flesh Manipulation, Demon Creation, Accelerated Growth Rate, Disease Immunity, Biological Absorption, Enhanced Senses, Extrasensory Perception, Immortality, Information Sharing, Inhuman Physical Capabilities, Menacing Aura, Regeneration, Shape Shifting, Supernatural Blood, Enhanced Self Evolving, Species Curse Immunity, TCB, WBS, BMBS.

Original Blood Demon Art: Blood Mist Parasite(The one where he creates a demons using his own blood), Blood Mist Explosion, Healing Blood Mist, Blood Mist Creation,???,???.

Acquired BDA: Swamp Domain, Self Replication

Naruto Sheets -/+]

Yes, I become the new Demon Progenitor because I make the former Demon Progenitor drink my blood. New Subordinate acquired. With tens of thousands demon slaves acquired through Muzan.

(If you are confused why Mc did the whole thingy about Humans and demons living together, it's because of the humans he ate and gaining the emotions and memories.)