(pov - Hiruko)
-before the 400 year time-skip-
'Muzan-sama did not give me a specific position, but he gave me total freedom to develop my research, over these years I have made a lot of progress in several areas.'
'My kekkijutsu allows me to clone myself, each of these copies has independent thought capacity'.
'And a risk? Yes, but the benefits outweigh the disadvantages, we are all loyal to muzan-sama, so the possibility of some of my clones having some thought to that effect, and zero'.
'The advantages that come with this is that one head thinks better than two, and over the years, I've been researching the genetics behind cloning'.
'Thanks to this I was able to understand the genetic concepts of my ability, and with that in mind, I did a lot of research, in an attempt to replicate my ability in humans'.
'Over the years and years, until I was able to come up with a satisfactory result, I was able to replicate a human and make the clone be biologically alive, but no matter what I try, the clone has no motor learning abilities, and as if it were a puppet'.
'I stayed a few years at this point, until I came to a decision'.
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Hiruko was walking towards a traditional Japanese castle, and although he seemed abandoned, he had a frightening presence.
Hiruko arrived at the gate and knelt down, "Muzan-sama, I'm here for advice."
The gates of the castle magically opened, the entrance hall lit with the various torches of the hall that were lit.
Hiruko walked, until he came across a large table, muzan was sitting at the other end.
Muzan sent hiruko to sit down and said, "I hope it's important advice, my time and precious".
Hiruko sat down and said, "Lord muzan, I've reached a point where I can't advance in my research, although clones are biologically alive, they don't have cognitive ability".
Muzan thought for a moment and said, "Hiruko, you pay close attention to the physical part, you have to pay attention to the spiritual part too, I suspect that these clones lack a soul".
Hiruko's eyes sparkled contemplating the answer and its possibilities.
But while hiruko was thinking, muzan continued, "your research is ina good direction, but I don't need new [artificial subordinates], when I can make one myself".
"But there isa point where your research can focus, find out how to put a soul in a clone".
Hiruko nodded and said, "your wish and a muzan-sama order, I will go back to my research to fulfill your request.
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(Pov - Muzan)
Muzan is now alone in the hall, 'my memories are in my soul, I have the formula of [transformation], with that I can create a new body with my old powers and add other lineages, when the perfect body is created, I will only have to transfer my soul through the method that hiruko discovered'.
Muzan thinking about it laughed, his laughter filled the silence of the castle.
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(Pov - Fugaku)
-before the 400 year time-skip-
'Muzan-sama gave me the role of leading the Japanese army, so muzan taught me various training techniques to train these humans'.
'As it also gave me freedom to transform the most talented of the group of soldiers, but the most important was that Muzan-sama taught me a unique breathing technique and said I can teach his variations to the onis I transform.'
'Over the years, the onis that i created, created demon-corp, a powerful group of onis with variations of my breath that are responsible for hunting supernatural beings from other countries'.
'It was one of Muzan-sama's orders when he learned of demon corp's creation, Lord muzan said he will facilitate future negotiations with the gods'.
'the leader of demon corp and my most talented student, he is currently the lower moon 1, as well as the only user of moon breathing'.
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(pov - tokugawa)
-400 years before the time skip-
'I have been administering Lord Muzan's government, not only the human side but also the supernatural side'.
'From what I have learned Lord Muzan is considerably increasing the number of onis, and it is I who am responsible for passing on Lord Muzan's orders'.
'The most recent order was that the onis must hunt other supernatural beings and take a blood fraction of each supernatural being that is hunted'.
'Muzan-sama is planning something big, but so far we have no idea of our Lord's plan'.
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(pov - Muzan)
Muzan through his spatial ability went into the demonic forest, walking among the strangely shaped trees, Muzan sighted a large cave.
Entering the cave Muzan spotted a large dragon, the presence was frightening.
A portion of Muzan's flesh fell off and molded into a katana; this sword had a blood-red blade and on its sides were small mouths with large fangs.
Muzan entered battle mode, his hair turned silvery white, his legs and arms were consumed by his flesh that became large mouths.
Muzan looked at the dragon and said, "breath of death - first form."
As the blow of the sword was directed towards the dragon, the air around the blow began to be sucked until a black area remained through which the blow passed.
This blow made a huge scar on the dragon who woke up with a roar, "rooaarr".
The dragon was still confused, but turned towards the ant that attacked him, "ant, how dare you leave me a scar".
Muzan moved at high speed and each blow carried a void capable of cutting the space itself, his blows left more and more scars on the dragon.
Although the dragon is stronger than muzan, its speed does not compare to Muzan's movement.
The notoriously wounded dragon said, "you're strong I admit, if you're in the family forest it means you're looking for a partner, right?".
Muzan observed with caution and said, "actually no, I just need your blood, to be more specific your lineage".
The notoriously confused dragon replied, "well, it's not what I expected, but all right, I can give you my blood, but you have to accept me as your relative".
Muzan thought of the pros and cons and after a time of consideration said, "okay, but you have to give me regular amounts of your blood from time to time".
The dragon transformed into his human form and replied, "okay, we have an agreement, I am one of the evil dragons - Drakath".
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(pov - muzan)
'I have gathered many lineages over the years, all are being inserted into the body of my clone, various youkais RACES, some lost demons, fallen angels, dragons...'.
'but more is needed, something beyond, a transcendental lineage that makes me a being with capabilities that go beyond the Great Red'.
'the only lineages that come close to this are ophis and trihexa, the easiest to acquire and ophis, if she sees the potential to defeat the great red, Then she will certainly strengthen me'.
'then the only way... Khaos brigade'.
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[Note] : The side-history's, will be focused on the view of the upper moons over the centuries, each chapter will have the (pov) of two upper moons and some of the muzan in relation to their plans, training, etc... , as you just read in this chapter, we start with fugaku hiruko and Tokugawa, the upper moons 1 , 4 and 5 respectively.