Chapter 13: Learn Moon Breathing

Boys must have the strength to protect themselves when they go out.

Looking at the content in the simulation, Kitahara Hakushu subconsciously thought this sentence in his mind.

At this time, that was even truer.

He admired his devotion in the simulation of feeding a tiger with his body and enduring the brunt of humiliation.

Ahem, as expected of me!

To achieve the goal, it is possible to do everything.

It's too envious... awesome!

Kitahara Hakushu has always believed in him.

Such a noble, kind, and pure person like him.

If it wasn't for the purpose of defeating Mai Tsuji, no matter how beautiful and seductive Mai Tsuji is, I would never accept such a thing.

After all, I know the truth.

In that simulation, I must have endured many things in silence to finally come to a decision.

And all this for world peace!

In the face of world peace, personal honor and disgrace is nothing, I can bear this!

Well, the theme is suddenly sublimated.

Kitahara Hakushu was moved to tears, truly moved by his wisdom.

…

[The next day, when you woke up, Muzan had disappeared. From memory you know that Muzan "will work". Although you have many guesses in your heart about the Demon King's "occupation", But you are not surprised by this.]

[You came to the market and bought a good sword with Mai Tsuji's money, and you want to learn sword techniques, because you know that in Demon Slayer, sword techniques and breathing techniques are very strong.]

[Even the Demon King, Kibutsuji Muzan, was once almost killed by Yoriichi Tsugikuni with the sun breathing method. You've wanted this for a long time, but you were always on Mount Natagumo in the previous simulation, and you didn't have the opportunity to learn breathing techniques, now, as a human. If you haven't become a Demon yet, you certainly shouldn't let it go.]

[The sun has just set, and Mai Tsuji, who left to "work", is back. He was slightly surprised when he saw you buy a sword, and asked loudly. You told him that it was because you suddenly felt that the samurai was very handsome recently, so you wanted to give it a try. Can I be a fighter too.]

[Since you said yesterday that you want to find something to do, Muzan was not surprised by this, but just looked at you silently, as if thinking, and finally, he nodded and agreed.]

[Living with Muzan is very stressful. Seeing that Muzan agreed, you took the opportunity when Muzan left the house for a period of time and went to learn sword techniques.]

[Your goal this time is also very clear, which is to learn from Sakonji Urokodaki, teacher of Kamado Tanjiro and Tomioka Giyu. Not only that, Sakonji is also a former Water Hashira and Demon Slayer organization. Sakonji lived in seclusion on Mount Sagiri after his retirement so finding him wasn't difficult.]

[Muzan fell silent again when he heard your request, then refused your request, saying that you don't need to worry about the teacher's matter, he will manage it.]

[One day, you saw Wu Tsuji bringing one of the Twelve Kizuki, who held the highest position, Upper Rank One, Kokushibo. It comes to you, and you find out that this is the master that Muzan has found for you.]

…

"Cough cough! Cough cough!"

"Bastard! One of Twelve Kizuki, Upper Rank One? Kokushibo? Kibutsuji Muzan's right hand man?"

Kitahara Hakushu was dumbfounded when he saw this, and his mood was ethereal.

Muzan suddenly brought Kokushibo to be your master.

You know, regardless of Demon Kokushibo's identity.

In the world after Yoriichi's death, Kokushibo could even be said to be the strongest swordsman in the Demon Slayer, unmatched.

Not to mention, the moon breath used by Kokushibo is the second most powerful breathing method after sun breath.

The master that Muzan found for him is too high.

At the very least, he's much stronger than Sakonji, whom I planned to apprentice as a teacher with.

I don't know what kind of mood Kibutsuji Muzan will feel if he finds out that he learned the breathing method to destroy him.

…

[Kokushibo saw you and looked down on you as a student, but for the sake of Mai Tsuji, he agreed to accept you as a student and started teaching you moon breathing.]

[In the coming days, you will learn indoor breathing techniques with Kokushibo during the day, 'dancing' with Muzan at night. You tell yourself that this is a necessary expense, and that there's nothing you can do about it.]

[During the days of guiding you, Kokushibo's impression of you slowly changed from the initial disdain, and he was very surprised by your appearance.]

[ He never thought that as a human, your physical strength is not only different from ordinary people, but also seems to be very compatible with his breathing method, moon breathing, and you have made great progress in practicing moon breathing.]

[Seeing that you are so talented, Kokushibo finally recognized you as a student, was very satisfied with you, and began to teach you seriously.]

[Muzan was also very surprised when he learned about your appearance from Kokushibo. Muzan originally thought that you wanted to become a samurai just for fun, and he summoned Kokushibo just to persuade you to stop. But Muzan didn't expect you to actually work so hard, and you are so talented, so amazing.]

[Though it was a little unexpected, Muzan didn't pay much attention to it, and even started to conceive the idea that it might be nice to find the time to turn you into a Demon in the future.]

[Kokushibo's teachings have made your strength increase greatly. You have successfully learned the twelve different forms of Moon Breathing. Unfortunately, there are still some forms that you haven't learned yet. Kokushibo was not surprised.]

[On this day, when the training was over, when you and Muzan were shopping at the night market. A young man suddenly ran out of the crowd, and shouted Kibutsuji Muzan's name hatefully!]

[You subconsciously looked at that boy and recognized him as the protagonist of the original novel.]

[Kamado Tanjirou.]

[Tanjiro looks at Muzan with hatred on his face, but he is very surprised by your presence. Seeing you and Muzan standing together is unbelievable.]

[To get rid of Tanjiro's attachment, Muzan Infects passers-by without hesitation turning them into demons.]

[howling, screaming, roaring...]

[Immediately heard in the crowd, and the crowd starts to riot, and Tanjiro has to let go of Mai Tsuji, to stop the mad evil spirit.]

[When you see this scene, you only feel goosebumps and tremble uncontrollably at Mai Tsuji's behavior. Muzan makes an attack without warning, and you don't even have time to stop him, but at the same time, it makes you realize again the gap between you.]

[You have always understood that a person named Muzan Tsuji is a cold-blooded being, or rather, this is the real Muzan.]

[For thousands of years, he did not know how many people he killed, how many families he destroyed, and how many people he hurt.]

[ The so-called perfection that you saw was just an illusion deliberately created by him.]

[Innocent Muzan, you will never admit it.]

[ Muzan felt your body shaking, and asked quietly if you were scared.]

[ When you heard this sentence and saw Muzan who didn't care about human life at all, you only felt an inexplicable rage welling up in your heart.]

[The strong man is angry and slashes the strongest man!]

[You felt no need to continue acting, so you drew your sword and slashed at Muzan without hesitation.]