To become a member of the
The mark on Tanjiro's head is actually a Demon Slayer Mark. Powerful Demon Slayers possess the ability to unlock unique marks that coincide with the special breathing fighting techniques they perform.
In the show, Tanjiro's father Tanjuro is shown with the exact same head "scar" as his son - and it seems unlikely that the explanation for this is that they both had the exact same scarring incident with a boiling hot kettle. As such, it's clear this is an inherited trait, and not the result of an unfortunate accident.
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.
It appeared in the final fight as he was cutting off Gyutaro's head. But after the fight, it simply reversed back to it being his normal scar.
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.
Demon Slayers who have awakened the Demon Slayer Mark are said to die upon reaching the age of 25. Michikatsu Tsugikuni speculated this to be because the mark exchanged the life span of its user for power.
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.
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.
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.
He had a disease that left his skin looking drab and made him weak. Nevertheless, Tanjuro was born with a birthmark on his forehead. Tanjuro wore a similar costume to his son, wearing a black checkered haori that was orange rather than dark turquoise, and wore Hanafuda earrings before passing them down to Tanjiro.
During his second encounter with Muzan Kibutsuji, he injures his right eye in the Infinity Castle. As the battle progresses, Tanjiro suddenly collapses and his wound begins to form a large mass over his right eye due to the poison inflicted on him by Muzan.
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.
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.
Thirteenth Form
This move was devised by Tanjiro solely to defeat Muzan. After all, the twelve hearts that Muzan could move around his body needed to be downed in one fell swoop, which is why Tanjiro resorted to this powerful technique.
Gon is far stronger than Tanjiro, and it wouldn't be a stretch to say that Gon would defeat the demon slayer with ease. Tanjiro may be a master of water and flame breathing, but Gon's nen and raw physical powers truly pack a punch.
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.
Tanjiro Is Strong, and Stronger than Zenitsu as he uses Sun Breathing.
Tanjiro's Current Demon Slayer Rank Is Kanoe
Tanjiro, Zenitsu, and Inosuke have moved from Mizunoto up to Kanoe due to their exploits. Murata, the Demon Slayer, who was almost digested on Mount Nagumo, is also a Kanoe.
Mitsuri Kanroji is another Hashira who Tanjiro could definitely beat in Demon Slayer. Mitsuri's main trick up her sleeve is her muscle composition, which makes her muscles eight times denser than that of a normal human's. In other words, she's incredibly strong and powerful, and tough with plenty of endurance as well.
Gyomei and His Unusual Situation
Only two Slayers were ever known to be older than 25 with a Mark. Yoriichi lived till old age, likely due to him having been born with the mark and thereby avoiding the curse altogether. Gyomei on the other hand did not activate his Mark until he was already older than 25.
Among the finalists of the Final Selection, in his batch, Tanjiro Kamado alone unlocked his demon slayer mark. This implies that Tanjiro only has 9–10 years left before he kicks the bucket, seeing that he's more or less 16 years old by Chapter 204.
They fought demons and trained together, yet Inosuke never acquired a mark of his own. Inosuke did learn a great deal about his tragic past, but he didn't get as much of a chance to shine as his other friends when it came to displaying his talents.