Hotaru demonstrated his professionalism and expertise when he polished and sharpened the 300-year-old blade left in Yoriichi Type Zero while completely ignoring the wounds he received from Gyokko.
Zenitsu Agatsuma. A standard sized and shaped Nichirin katana with a lightning streak along its blade.
History. Hotaru Haganezuka forges Nichirin swords for the Demon Slayers.
As the battle reached its climax, Tanjiro was able to knock the doll's head off and discovered that the mechanical body contained a mysterious sword. Fans of the manga will recognize this sword as the one carried by Yoriichi Tsugikuni himself.
Tanjro's swordsmith made him another sword like he did when Tanjiro was doing the recovery training.
Tanjiro's Black Sword
Of course, the one who takes the top spot in terms of the best swords in Demon Slayer is Tanjiro's black Nichirin blade.
Black swords are also supposed to hold all the colors, which means Tanjiro is to find his way through all colors and breathing techniques. It is also said to absorb the most sunlight, so it is the strongest sword against the demons.
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 ...
Moreover, any Nichirin sword can become bright red regardless of the blade's original color. However, the blade can only stay bright red for a certain amount of time before returning to normal.
Tanjiro's ancestor was a good friend of Yoriichi and arguably was one of his only true friends. Therefore Yoriichi gave the earrings as a gift, and since then they have been passed down the generations until they reached Tanjiro.
Tanjiro Kamado
Even his blade doesn't look special, but it's actually one of the more unique swords in the series. While most of the other characters have blades that match their breathing styles, despite being a water breather, Tanjiro's blade is pure black.
The Stone Hashira has the most unique Nichirin Blade in the Demon Slayer Corps. In fact, Gyomei doesn't even wield a sword at all.
1 Seventh Form: Honoikazuchi No Kami
This mastery allowed Zenitsu to form a Seventh Form of Thunder Breathing that is unique only to him: Honoikazuchi no Kami. While this move might seem similar to Thunder Breathing's First Form, the speed and power of this technique are on a whole new level.
Thunder Clap and Flash—Godspeed is the most powerful of Zenitsu's derivations of the Thunder Breathing first-form technique.
Shinobu Kocho was the former insect Hashira who played a big role in defeating Doma, the Upper Moon 2, during the Infinity Castle arc. He also happens to be a descendant. Reason of death: Killed by Doma (Upper Moon 2).
In an interesting turn of events, as mentioned above, Tanjiro later uses the flame handguard from Rengoku's sword on the legendary Yoriichi sword he finds during the Swordsmith Village arc.
So now, Tanjiro, the protagonist of the Demon Slayer series, has access to a sword that belonged to the best swordsman to have ever lived. This sword was in bad condition, but Hotaru Haganezuka took it upon himself to restore the blade to its former glory.
Hinokami Kagura, also known as Sun Breathing, is easily one of the strongest Breathing Styles in the series by a wide margin.
Some of the characters who have faced Yoriichi and survived
This happened due to a treatment that had gone wrong. While he was being treated, Muzan killed the doctor because he was not able to observe any results.
Yoriichi would be able to defeat every single Hashira on this list without breaking a sweat. Such was his reputation and skill in swordsmanship.
In his own franchise, Tanjiro is outclassed by most of the nine Hashira as of the end of season 1, including Giyu Tomioka. It's easy to compare Tanjiro's strength to Giyu's — since they are both demon slayers — and they even use the same element: water.
9 Tengen Uzui, The Sound Hashira.
To become a member of the Demon Slayer Corps, he had to clear the Final Selection. During this event, Tanjiro received a massive blow to his head from the Hand Demon that killed many of Urokodaki's students. This increased the size of his scar and changed the color as well.
10) Black Nichirin Sword
This sword is used by the current protagonist Tanjiro Kamado and was also used by none other than Yoriichi Tsugikuni.