Nezuko's unusual ability can burn her blood and turn it into an explosive flame with her pyrokinesis ability. This is why Tanjiro's sword turned red due to her pink explosive flame that can rend through demons quite easily.
When Tanjiro first got his Nichirin Sword on Demon Slayer, and it changed color to match the personality of its user like all Nichirin weapons do, many fans were surprised that Tanjiro's katana turned black.
Black is the most mysterious color of all the blades, and is held by the main character, Tanjiro. It is a rare blade and represents the sun; it also holds a theory that the demon slayers who own this sword are not to live a long life.
In Demon Slayer, the red Nichirin blade, wielded by Kyojuro Rengoku, symbolizes flame. The fan-favorite blazing Flame Hashira is charismatic and wonderfully eccentric.
Demon Slayer's season 3's latest episode has left fans on edge with Tanjiro's discovery of Yoriichi Tsugikuni's Type Zero sword.
why tanjiro's head is so hard? Well, it's thanks to his genetics, as his mother, Ki Kamado, passed down the trait of a rock hard head to him. In fact, Nezuko heard a story about their mother. scaring away a boar by headbutting it, which shows that Ki was also very tough and fearless.
Tanjiro Kamado is the protagonist of Demon Slayer and, being a member of the Kamado Family, also a user of the legendary Sun Breathing. Although Tanjiro initially learned Water Breathing from Urokodaki, he later managed to tap into the powers of Sun Breathing as well.
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.
Tanjiro's most notable attribute is his ability to empathize with anyone, even demons, which often made him hesitate before delivering the final blow.
That life threatening condition altered him and afterwards, it develops into a flame-like pattern and is his new Demon Slayer Mark. It remains that way and continues when he uses his abilities. This is a cool piece of mythos that will evolve as the story continues.
But, he becomes even more anomalous as Urokodaki mentions that black swords are rare. The unusual color is still an indication of Tanjiro's talent though because Nichirin blades do not change color for a wielder who is unskilled with a sword.
During their battle, the former unleashed an attack that harmed multiple people in the entertainment district. Seeing the loss of human lives and the ceaseless destruction caused by the demon, Tanjiro's was overcome with rage, causing his eyes to start bleeding.
Tanjiro isn't affected by the sun or the red blades which Yoriichi has. Since he has all of Muzan's powers, he would gain his extra hearts and brains as well as all of his techniques with the Slayer Mark, transparent world, and sun breathing, out-classing Yoriichi.
Tanjiro has mastered all ten Water Breathing forms, each of them equally deadly and effective depending on the situation and enemy.
Demonic Regeneration Hampering: The main and only special ability of the bright red Nichirin Blade is to hamper or nullify the regenerative and healing abilities of Demons, which is meant to mimic the sun's effect on them.
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.
8) Muzan hates being called pale or dead
Muzan is the most powerful demon in the entire series, and is responsible for creating all demons. For someone who considers himself to be perfect, it is natural that he will hate being called pale or dead. This is established quite early on.
Unlike other demons who survive on blood, Nezuko never really needs it, and she doesn't even consume human food either. Moreover, Nezuko has never shown any signs of undernourishment as she is always ready to assist her brother with her overwhelming strength and deadly Blood Demon Art.
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.
Thirteenth Form of Sun Breathing in Demon Slayer
It involves a combination of all existing Sun breathing techniques — but performed in a consecutive manner. This technique's primary purpose is to slash all the twelve vital organs of a demon. Each form targets a specific organ. Tanjiro only used it once in the manga.
Thanks to Muzan, the demon form of Tanjiro has the fastest regeneration and the strength to avert all physical attacks. Moreover, just like his sister Nezuko, Tanjiro acquires resistance against the sun, making him completely invincible against any human.
During his life, Tanjuro was stricken by an unnamed disease that caused his body to be so skinny and frail, and his skin also appeared quite pale. In his later years, Tanjuro spent most of his days bedridden.