WHAT IF Muzan WON The Final Battle?

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The thing about the first one is, he thought the same for Yoriichi, he describes that when he first saw Yoriichi, he didnt look like a treat, just a man with a sword, and Muzan acknowledged it as the 2nd greatest mistake of his life, because underestimating Yoriichi’s poeer is exactly what nearly killed him, Muzan’s senses told him that Yoriichi was weak, but Yoriichi had selfless state that hid his battle spirit, which made him look weak, Muzan most likely thought the same thing when he thought of Tanjiro, besides, Tanjiro has the earings, similar mark, eyes, and hair colour, he also looks weak, which is the exat description Muzan gave of Yoriichi before he got obliterated

I wanna add to that. I think muzan was afraid of making the same mistake he did with Yoriichi. From manga when Muzan faced Yoriichi for the first time, he couldn’t sense that Yoriichi was a threat either because Yoriichi was in the self-less state. He may have thought this was the same case with Tanjiro and that is why he isn’t doing anything to him

“If the protagonist is too weak, make him lucky. If the villain is too strong, make him stupid. If neither, why in the world are you still writing?” - Master Oogway

The first biggest mistake Muzan made was killing the doctor that was treated him. Even if it had been a failure, the doctor was genuinely trying to help him. This shows that he was truly despicable from the start. Also, he could have found out about the blue spider Lily if he had asked some humans to help instead. There certainly would have been humans who knew about it over the centuries he spent searching for it.

There is a problem with the third mistake. Muzan himself didn't make Daki and Gyutaro demons, Doma did (using his blood but still if you take it litterally).

I feel like he would take over tanjiro and become even stronger cause remember it took kanao nezuko and everybody to get dkt in control sooo

2:13 Therapy doctor: Russian Gyokko isn't real, he won't hurt you. Also Russian Gyokko:

Simple,He is not the main character.

Man… I really hope a demon slayer manga comes back and expands on everything…

2:37 I choked on my tea when I saw Douma like this-

alternative title: what if tamayo didn’t poison muzan

“AND NO ONE COULD DO ANYTHING TO STOP HIM” The Asian parents grabbing belt: Sure abt that one kid?

There is a possibility that Muzan still is mortal, even it's by a single means. And that is concentrated wisteria. When Tanjiro became a demon, the only thing that reverted him back was Kanao's wisteria vile.

Muzan had 5 brains however they are empty. Thats literally the only mistake there Edit: thanks for the attention but you guys can stop liking and commenting now

That's why the swamp demon got scared because he remembered that muzan was able to see what's happening

Muzan: I’m strongest now that I’m immortal Old yoriichi: *use’s timestone to go back in time

Fun Fact: in the district arc it was stated that tengen wanted to go there just to save his wives and that's when Tanjiro, Zenitsu and Inosuke wanted to replace the girls because they would most likely die

Muzan should’ve sent a Lower Moon 5 Rui or Upper Moon 6 Daki and Gyutaro instead of Susamaru and Yahaba.

1:20 he could not sense yorichis powers cause of his powers and he probally thought that tanjiro was trying to pretend to be a weak slayer