Summary
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Research the demon's killer Mark to beat the upper months and strengthen the choir.
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Eliminate twelve kizuki to paralyze the music and turn him.
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Strategically, it focuses on the weak replacement of the upper month to weaken Muzan's forces.
In the Hashira training arch, Slayer Corps had an urgent meeting led by Amane Ubuyashiki after the battle in the village of Swordsmith. Focusing on the recent development and based on the understanding that Muzan Kibutsujuji is perhaps ready for a total war, it was decided that Hashira would train other members of the Corps for the Battle ahead.
As an ancient organization that has been the shield of humanity against demons for centuries, Slayer Corps understands that he will risk that he will be ejected if I can conquer the sun. Since it could be the strike of death on the hope that it sometimes stops the demon of the king and his subsoil, the bets were never higher. Now that the total war seems to be inevitable, the Slayer Corps must achieve these things to prevent their worst fears.

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Drive through the Demon Killer's brand
Even Hashira does not cost any chance against the upper months without brands
In the village of Swordsmith, when Tanjiro fought with Hantenga, he pushed beyond his physical restrictions and at the moment of complete despair and rage ended in manifestation of the mysterious brand of demons. He immediately transformed him into a much more effective warrior capable of stunning and the upper month. This put the chain event in motion, which Mitsuri and Muichir allowed to awaken its grades.
Your children perform your will and ensure that your hopes live. When we talk, they try to defeat Muzan Kubutsuju once and for all because of your zealous desire. ~ Amane Ubuyashiki to Kagaya
Mist Hashira continued his one -time defeat Gyokko, because the Demon killer Mark gave him access to the transparent world and strengthened his physical abilities. It was a key moment in the battle, which was later discussed at the Demon Slayer Corps with Amane Ubuyashiki.
The defeat of Muzan is easier to say than it does, because the fight against the predecessor of all demons is the battle uphill, which will push even the highest Hashir to their limits. Even then, it is highly likely that they will die before they can land a fatal wound on the demon of the king. Hashira even has to get a chance to win against Muzan, he has to show a demon's killer. While they trained in the Hashira training arc, the awakening brand requires meeting specific criteria. Since Hashira is ready to fight the upper months at the Infinity Castle, it must show or risk that they will kill in bulk.
Eliminate the upper months of twelve kizuki
Before the confrontation of the Muzan, the Demon Slayer Corps must kill their pads
As mentioned earlier, Muichiro, Tanjiro and Mitsuri showed their grades and were able to overthrow the upper months. However, it should be emphasized that Akaza, at home and Kokushibo are significantly stronger in twelve kizuki than other demons. The brand awakening will only be the beginning, because they would have to combine and fight these three in groups. Only in such a scenario have a chance to defeat these demons.

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After the death of Gyok, Hanteng, Gyutaro and Daki, three positions of the upper month were unoccupied for some time. While kibutsujuje chose a replacement for Hanteng, Gyutaro and Daki, it is shocking that it seems that no one who would attract Gyoko. Not even one of the replacement, Nakim, is not as dangerous as the others in the twelve kizuki. Worse, Kaigaku is also not so experienced and lacks the power that is usually expected in the upper month.
These are several serious strategic supervisions that Slayer Corps must use. Removing twelve kizuki is the first step to the peace world and there was no better time for it than now.
The corner of the Muzan without his background
Once the twelve kizuki is gone, I kibuts where they turn
As soon as the demon Slayer Corps managed to reduce Muzan's documents, he would have a serious problem on his hands. The Demon King relies strongly to the upper months to do his dirty work. He barely struggles with Hashira himself and trusts his documents to take place. However, as soon as twelve kizuki is excluded, it will be isolated and no one will turn to it.
I know what eternity is. Eternity is a human feeling. Only human feelings last forever and undying. ~ Kagaya Ubuyashiki to Muzan
Hashira and other demons killer must use this situation to land fatal wounds and end Muzan's reign of terror. To do this, however, they will have to ensure that they do not suffer from severe losses when fighting the upper months. Only when I have to fight a few strong demon's killer kilometers will he be vulnerable for the first time and for the first time pushed into the corner. This would give the demon's killer the upper hand, which hopefully they will kill the progenitor of the demons himself.
Demon Slayer: The first Infinity Castle Install The Infinity Castle is scheduled for edition in the United States September 12, 2025.

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