Tanjuro Kamado was the name of Tanjiro Kamado's father. He passed away before the event of the main story of the Demon Slayer. It is not mentioned how long Tanjuro had passed before the story, but in several flashback scenes, we can see him interacting with a younger Tanjiro.
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.
Breathing Style
Hinokami Kagura (ヒノカミ 神楽 かぐら , Hinokami Kagura?): Tanjuro was capable of using the Sun Breathing as the Hinokami Kagura taught from his own father, passing down the dance and Yoriichi's earrings to his son.
That man, he wasn't Tanjiro's father. He was Yoriichi, the first and legendary Demon Slayer, who managed to defeat Muzan and almost kill him. That's him. Tanjiro's father wasn't a Demon Slayer, he had a special dance only the Kamado family knew.
A few years later, after Tanjiro had joined the Demon Slayer Corps, he encountered Muzan Kibutsuji while visiting the city of Asakusa. It was there that Tanjiro confirmed by Muzan's scent that he was the demon who'd massacred the Kamado family.
Tanjuro Kamado bore a mark on his head similar to Tanjiro's own scar, identifying Tanjuro as a chosen wielder of Sun-Breathing.
Kokushibo is reserved, silent, and aloof, maintaining an aura of unnerving tranquility and mystery that compliments his position as Upper Rank One.
Tanjiro certainly did a lot of good with his Water Breathing techniques, but his ability to use Sun Breathing both gives him an edge in battle and allows him to stand out among the incredibly powerful Hashira he fights alongside.
After a Demon attack kills almost her entire family, Nezuko is turned into a Demon by the orchestrator of said attack, Muzan Kibutsuji.
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.
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.
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.
Technically, Demon king Tanjiro should edge out Muzan in terms of power and strength. After he'd died, Muzan's consciousness took over his body, and basically fused with him, meaning he got all of Muzan's blood, and theoretically should have all his powers.
Injured Zenitsu hugs Nezuko. Zenitsu also protects Nezuko multiple times when she is in danger, evident during Zenitsu's first meeting with Inosuke Hashibira and the battle against Enmu in the train. Eventually Zenitsu and Nezuko would marry and start a family as evidenced by their descendants.
Tanjuro Kamado was the name of Tanjiro Kamado's father.
So the only reason Muzan is afraid of Tanjiro is because of the Hanafuda earrings he possesses, which acted as a reminder of his downfall. nxt. Hanafuda Earrings are a symbol of Sun Breathing users, traditionally passed down from generation to generation as a family heirloom.
A millennium ago, during the Heian Era, Muzan was turned into a demon during an experimental treatment trying to cure his terminal illness, and his goal since then was to live without the fear of death and become truly eternal.
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.
The last user is Tanjiro Kamado, who learned the Breathing Style from his father, Tanjuro Kamado. Other people can learn this technique if taught by a Kamado descendant.
The black blade represents the Sun and is surrounded by prejudice and misconceptions, as historically every demon slayer who held it lived a short life. This could mean that Tanjirou is destined to break the pattern and set a new legend for black Nichirin blades in the Demon Slayer universe.
It was Yoriichi's sword, he found it inside Yoriichi Type Zero doll when he destroy the head. And then hotaru took the sword to fix it. Tanjiro also use Kyojuro's tsuba in this sword.
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 ...
Yoriichi Type Zero ( 緑 より 壱 いち 零 ぜろ 式 しき , Yoriichi Zeroshiki?) is a Battle Doll constructed by Kotetsu's ancestors during the Sengoku Era.
This Breathing Style is solely used by Michikatsu, who was one of the first Demon Slayers who utilized Total Concentration Breathing. Even after he became a demon, he continued to use it.