We know that
He was able to slay a bear nearly nine feet tall with a single axe at speeds magnitudes faster than the blink of an eye. His mastery of Hinokami Kagura enabled him to perform a long, arduous dance in frigid conditions without tiring.
This anime repeatedly shows viewers the clear difference in the strengths of demons and humans, and that teamwork is the only way to overcome a task that seems insurmountable. In conclusion, Tanjiro will not be able to kill Muzan by himself since the Demon King is far superior in every aspect of combat.
Akaza could not detect his fighting spirit via the compass and Tanjiro manages to decapitate Akaza with the Hinokami Kagura: Setting Sun Transformation.
However, against all odds, Tanjiro along with the rest of his crew were able to defeat the Upper Moon 6.
But if we are talking about the human form, then it's a big fat NO, because Tanjiro has just mastered the Sun Breathing whereas Yoriichi is the inventor of it, also he's way more powerful and holds an unfathomable battle intellect, larger than any Demon Slayer in history, so in conclusion, no one is remotely close to ...
Three Hashiras Tanjiro could beat in Demon Slayer
Comparing an end-of-story Tanjiro to an end-of-story Muichiro, Tanjiro likely takes the win home 99 times out of 100.
In conclusion, Nezuko cannot beat Akaza in Demon Slayer. In terms of power, physical abilities, regeneration rate and overall combat ability, Akaza is far superior compared to Nezuko.
In his final moments, Akaza showed that he still had a lot of humanity left in him, remarking that Tanjiro's technique was magnificent and that he had lost fair and square, even smiling and feeling gratitude towards him for reminding him of his past.
At the end of the day, none of the Hashira could've defeated Akaza – even though a few of them could've succeeded in decapitating him. Akaza proved himself to be too strong to be dragged into sunlight, meaning there'd be no way for any of the Hashira to kill him.
It is quite possible that Tanjuro Kamado died of an illness like typhoid or tuberculosis, something which didn't really have a cure at that time. However, there is an interesting theory that connects Tanjuro, Breath of the Sun, and the Demon Slayer Mark.
Is upper rank one Tanjiro's father? No, they are not related. Tanjiro, by PURE COINCIDENCE, heavily resembles Yoriichi Tsugikuni, the creator of Breath swordsmanship, the only other person to use Sun Breathing, and the only person Muzan ever feared.
The warrior Muzan feared was a swordsman named Yoriichi Tsugikuni. Yoriichi was the only slayer before Tanjiro who came close to killing Muzan, and the flashback of their fight occurred in Chapter 187.
Tanjuro Kamado a recurring flashback hero from Demon Slayer : Kimetsu No Yaiba. He was the husband of Kie Kamado, and the father of Tanjiro, Nezuko, Takeo, Hanako, Shigeru, and Rokuta. Tanjuro was a flame dancer who used to dance the Hinokami Kagura during the winter.
Tanjiro wasn't born with this scar on his forehead. Rather, he acquired it when tackling his younger brother out of the way of a falling pot of boiling tea. At the beginning of Demon Slayer, the scar was a light-pink, circular mark.
In the Demon Slayer Corps, the Hashira is a group of the strongest and most reputable swordsmen who have defeated members of the Twelve Kizuki. Yet, for some reason, Tanjiro Kamado, the series' protagonist, never becomes a Hashira.
Every demon in the Demon Slayer respects the demon lord because of the fear he inflicts. Even Upper-Rank Three: Akaza got thrashed boasting about executing a Hashira, insignificant to Muzan as humans are frivolity in front of demons. Apart from that, Muzan doesn't hate Akaza because of his obedience.
Does Muzan have a favorite demon? Despite the fact that Muzan. is always shown to have disdain for his creations, Muzan does in fact have a favorite. On that list is Naki, made due to a convenient blood demon.
Throughout his life as a demon, Akaza never felt any sort of awe, hatred or respect for Muzan, instead viewing him simply as someone who gives orders and himself as someone to carry them out. Muzan became fond of him, due to his loyalty, will to become stronger and gave him special permission to not eat women.
After awakening his demon slayer mark, Giyu greatly overpowers Akaza. However, he is able to keep up with the fight only because of Tanjiro. If Giyu had soloed against Akaza, he would have died.
Not to mention that no one has been able to kill an Upper Moon in over a hundred years. Uzui and Tanjiro's group breaks the cycle of tragedy when they defeat the Upper Six, Gyutaro. However, it takes one Hashira and several more demon slayers to take down the weakest of the Upper Moon.
The Thirteenth Form of the Sun Breathing Style is unique in the sense that it doesn't really have a name of its own. Rather, it's a combination of all the twelve forms present in this style, used in succession to maximize their power. This move was devised by Tanjiro solely to defeat Muzan.
Muichiro Tokito – Mist Hashira
In direct combat, he easily overpowered our protagonist Tanjiro so his strength is not to be taken lightly. Another testament to his skills is his win over Gyokko, an Upper Rank Five demon, whom he defeated all by himself – too with ease.
Obanai hated Tanjiro with a passion, even more than he hated Giyu. It started with Tanjiro's breach of Demon Slayer conduct and insubordination during the Hashira meeting, but intensified after Tanjiro interacted with Mitsuri during the Swordsmith Village attack and completed her Hashira Training with raving reviews.