Tanjiro Kamado's sword: the story of the black Nichirin blade

Tanjiro Kamado starts Demon Slayer as a charcoal seller's son carrying baskets down a snowy mountain. By the end he is the swordsman who stands against Muzan Kibutsuji himself. Through all of it, one thing marks him out among the Demon Slayer Corps: his sword is black. Here is the story of that blade, what it means, and how to bring it home.

Who is Tanjiro Kamado?

Tanjiro's family is killed by a demon while he is away selling charcoal, and his younger sister Nezuko is turned into a demon. Determined to turn her back into a human and to find the demon responsible, he trains for two years under Sakonji Urokodaki, a former Water Hashira, learns Water Breathing, and passes the Final Selection to join the Demon Slayer Corps.

What makes fans love him is not only his strength. It is his kindness: he grieves even for the demons he defeats, because they were once human too.

Nichirin blades and their colours

Demon Slayers fight with Nichirin swords, forged from a special ore that absorbs sunlight. Only these blades, or sunlight itself, can kill a demon. When a swordsman draws his Nichirin blade for the first time, it changes colour to match him: Water Breathing users usually get blue, Flame users like Rengoku a burning red-orange, Thunder users like Zenitsu yellow.

Why Tanjiro's blade turned black

Tanjiro's swordsmith, Hotaru Haganezuka, expected a bright red blade because of Tanjiro's red-tinged hair and eyes. When Tanjiro drew it, the steel turned jet black. Haganezuka was furious, and Urokodaki was uneasy: black blades are so rare that he had barely ever seen one, and swordsmen who carry them were said not to rise far in the Corps.

The series later shows why the old warning was wrong. The black blade hints at Tanjiro's link to something far older than the Corps' Breathing styles.

From Water Breathing to Hinokami Kagura

Tanjiro learns Water Breathing from Urokodaki, but his body is never a perfect fit for it. In the fight against Rui on Mount Natagumo, he remembers his father dancing the Hinokami Kagura, a ritual dance to the Fire God performed every New Year by the Kamado family, and turns its movements into sword strikes.

Over the story it becomes clear that this dance is Sun Breathing, the first and strongest Breathing style, created by the legendary swordsman Yoriichi Tsugikuni and passed down in the Kamado family as a dance, along with the hanafuda earrings Tanjiro wears. A black blade, a dance to the sun and those earrings all point the same way.

Every sword Tanjiro carried

• His first Nichirin sword from Haganezuka, the black blade he receives after Final Selection.
• Replacement blades through the early arcs. Tanjiro breaks or damages swords often enough that Haganezuka chases him in fury more than once.
• The blade from the Swordsmith Village. Inside the old training puppet Yoriichi Type Zero, a sword centuries old is found. Haganezuka polishes it and it becomes Tanjiro's new weapon, a blade forged in Yoriichi's own era.

In the Swordsmith Village arc his blade even burns red, with help from Nezuko's Blood Demon Art, one of the most memorable moments of the anime.

Watch it first

If you have not seen these moments, Tanjiro's story is on official streaming platforms in India, including Crunchyroll and Netflix, and the first Infinity Castle film arrived in cinemas in 2025, going on to become the highest-grossing anime film ever worldwide. Part 2 of the Infinity Castle trilogy is not coming in 2026; reports point to 2027, and fans expect the next big news at the Demon Slayer stage at Jump Festa in December. Watch the official trailers on the Aniplex and Crunchyroll YouTube channels.

Which Tanjiro katana should you get?

• Tanjiro Black Nichirin wooden katana: the jet-black blade from the story. Our pick for fans who know why it matters.
• Tanjiro wooden katana: his iconic look with the checkered-pattern details, hand-painted on a wood core.
• Tanjiro LED katana: the same sword with a blade that glows, made for gaming setups and dark rooms. Powered by USB Type-C, switched on with a double tap.

All three are about 104 cm long with non-sharp, decorative blades, so they are safe for display, gifting and cosplay.

Display ideas

• The Kamado pair: Tanjiro's sword next to a Nezuko poster or figure.
• The Mugen Train shelf: Tanjiro with Rengoku's sword on a double stand.
• The full squad: Tanjiro, Zenitsu and Rengoku on a triple katana display stand.
• The Sun Breathing set: Tanjiro next to Yoriichi's LED katana, the past and present of Sun Breathing.

Keep the katana out of strong direct sunlight to protect the paint, and wipe it with a soft dry cloth. No demons will be harmed.