Kokushibo is reserved, silent, and aloof, maintaining an aura of unnerving tranquility and mystery that compliments his position as Upper Rank One.
Tanjuro Kamado was the husband of Kie Kamado and the father of Tanjiro Kamado, Nezuko Kamado, Takeo Kamado, Hanako Kamado, Shigeru Kamado and Rokuta Kamado.
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.
Kokushibo (黑死牟) is the secondary antagonist of the manga/anime series Demon Slayer: Kimetsu no Yaiba. He is Upper Rank One of the Twelve Kizuki, and the archenemy of his younger twin brother, Yoriichi Tsugikuni.
Tanjiro sets out on a dangerous journey to find a way to return his sister to normal and destroy the demon who ruined his life. The fight with Kokushibo, the highest-ranking demon among Muzan's servants, is over.
So in the end DEMON KING TANJIRO IS A WHOLE LOT MORE POWERFUL THAN YORIICHI. Also not to mention that Tanjiro is literally invincible I mean to be honest Tanjiro could beat anyone in all of anime and in other series bc of his IMMENSE power.
4) Kokushibo
The Upper Moon 1 is a swordsman and is capable of causing a ton of destruction from any range. Nezuko will have to give her all to just keep up with someone like him. Kokushibo would easily be able to defeat her in a 1v1 combat.
Even 400 years later, Muzan's fear of Yoriichi remained fully intact, as simply laying eyes on Tanjiro's hanafuda earrings caused him to recall their clash.
Zenitsu blitzing Upper Rank Six, Kaigaku. Immense Speed & Reflexes: Zenitsu is extremely fast, being able to easily move faster than even the eye can see.
The answer to whether Upper Moon One is stronger than Muzan in Demon Slayer is quite clear; Kokushibo is not stronger than Muzan Kibutsuji. The main piece of evidence here is that Muzan was able to escape a living Yoriichi, whereas Kokushibo needed death's assistance to prevail.
However, Tanjiro is not a descendant of Yoriichi Tsukiguni. Tanjiro is the descendant of someone who knew Yoriichi personally and was a good friend of his as well. Sumiyoshi was rescued by Yoriichi when a demon threatened his life. Since then Yoriichi often met him and they became close acquaintances.
Nope, the upper moon one is weaker than Muzan. In fact all demons are inferior to Muzan. He has control over all demons (barring a few) as they contain his blood.
Nezuko doesn't stand a chance against the Upper Moon 3
Nezuko is undoubtedly a strong demon in Demon Slayer and she proved her strength repeatedly. One situation that really displayed her true potential was the fight against Daki. She underwent a transformation and thoroughly overwhelmed the Upper Moon 6 demon.
Tanjuro Kamado was the name of Tanjiro Kamado's father.
Fortunately, Zenitsu was able to single handedly beat the Upper Moon 6. Not only did he defeat the demon, he also created a seventh form called the Flaming Thunder God. These are the demons who have been given the title of Upper Moon 6 in Demon Slayer.
We know that Tanjiro was able to completely outclass Akaza for a few minutes due to his access to the Selfless State and the Transparent World. It was in this flashback when fans realized that Tanjiro was able to learn this because of his father.
Yoriichi was born with the Demon Slayer mark and prowess in swordsmanship. His powers were beyond comparison as he defeated Muzan once and had him on the verge of death until he managed to escape.
10) Zenitsu
He certainly has speed and was able to keep up with Daki during the Entertainment District arc. While some might say that he could one-shot the Upper Moon demon Kaigaku, the demon was nowhere near the level of an Upper Moon since he was not used to his powers.
As it turns out, Tanjiro has received a few promotions during his service. However, saying that Tanjiro has become a Kanoe doesn't mean much on its own. The Corps' ranks and functions are fairly straightforward.
Akaza was also one of Muzan's favorite demons out of all his subordinates. The reason behind this is Akaza's extreme loyalty to his master. The Upper Rank Three demon was always sent away on special missions, something the Upper Rank 1 and 2 were often denied of.
Yoriichi was incredibly proficient in his Sun Breathing, being able to take down demons effortlessly and even overwhelm the Demon King and strongest Upper Rank.
Since he didn't know anything about the Blue Spider Lily medicine, he needed others to find the plant for him by happenstance. This is the general reason why Muzan turned Nezuko into a demon. More specifically though, was the fact that Nezuko was of Kamado blood.
As a result, Tengen Uzui has to deal with the moniker of being the least powerful Hashira around. Of course, that's not the worst thing in the world, as all Hashira are strong. He's still incredibly powerful and can give any demon a run for their money.
After becoming a Demon Daki grew strong enough to kill and eat seven Pillars and gained the attention of Muzan Kibutsuji who allowed them to join the Twelve Demon Moons. She later dies after being beheaded by Zenitsu Agatsuma and Inosuke Hashibira.