One theory suggests that Tanjiro’s sword turned black as an analogy to charcoal, which ties into Tanjiro’s past job selling charcoal. Another theory (which contains spoilers for the manga) suggests that black blade users are users of the Breath of the Sun style.
How did Tanjiro get his first sword?
Due to its unique property, the blades are used by the Demon Slayer Corps to slay demons. After Tanjiro passed the Final Selection and joined the corps, Hotaru, a swordsmith, appeared at Urokodaki’s house to deliver Tanjiro his very own Nichirin Blade. Tanjiro Gets His Own first Sword Tanjiro gets his first sword.
One source claimed at the beginning of the series, we were introduced to demons that immediately killed Tanjiro’s family and turned his sister into one herself.
Why did Tanjiro turn his blade Black?
However, after Tanjiro wielded the blade, it turned pitch black, which was ironically considered to bring bad fortune to its user. It is said that the wielders of a Black Nichiren blade will not go far and will die young like their predecessors. Why did Tanjiro’s sword turn black?
During his battle against Muzan, when Tanjiro used his Sun Breathing style, his black Nichirin blade turned red and gave him the ability to hamper the enhanced regeneration of the Demon King. Why did Tanjiro’s sword turn red is a difficult question altogether as it was never officially revealed in the manga.
What is the meaning of Tanjiro’s Black Blade?
There are a lot of fan theories out there guessing at the meaning of the black blade. One theory suggests that Tanjiro’s sword turned black as an analogy to charcoal, which ties into Tanjiro’s past job selling charcoal. Another theory (which contains spoilers for the manga) suggests that black blade users are users of the Breath of the Sun style.
You should be wondering “Why does Tanjiro Kamado have a black blade?”
One way to think about this is the series main character, Tanjiro Kamado, wields a black Nichirin Blade, but the symbolism of the black blade is unknown. The reason for this is because black blades are seen as a rarity, as demon slayers who wield them don’t have a tendency to live long, let alone becoming a Pillar of the Demon Slayer Corps.
Our main character, Tanjiro Kamado, wields a black Nichirin blade, and just like any other protagonist, his weapon is indeed special. As it turns out, black Nichirin swords are very rare, and because of that, the symbolism behind it is virtually unknown.