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Product Details

Set your heart ablaze. Those are the last words Kyojuro Rengoku speaks before one of the most devastating deaths in anime history. The Flame Hashira who fought Akaza to a standstill on the Mugen Train, who chose to protect every passenger with his life, who smiled through his final breath - Rengoku turned a single movie appearance into the emotional anchor of the entire Kimetsu No Yaiba series. His Nichirin sword, colored by the flames that define his breathing style, became an instant icon the moment the Mugen Train arc aired.

This replica captures the full visual intensity of Rengoku's blade. The 1045 carbon steel blade features a black and red raging fire pattern along its length - the kind of detail that makes this sword unmistakable from across a room. The alloy tsuba is shaped like a roaring flame with an orange border surrounding a red and yellow core, matching the anime's design exactly. The white cord-wrapped handle contrasts against the fiery blade, and the hardwood scabbard is wrapped in PU leather with a white and blue diamond pattern that references Rengoku's haori. Every element ties back to the character.

The fire pattern on the blade and the flame-shaped tsuba are the two details buyers comment on most. One reviewer wrote a passionate breakdown praising the colors and design as "spot-on" and said the sword "really makes you want to set your heart ablaze." Another called it "way better than I expected" in terms of quality. A buyer who purchased it as a Christmas gift reported it was "a huge hit." One noted "out the box you can tell the craftsmanship" and said it delivered "exactly the quality you would want for the price."

One honest note: a couple of reviewers mentioned the paint on decorative elements can be delicate on very close inspection. The flame-shaped tsuba is an intricate piece with multiple color layers - worth knowing if you plan to handle the sword frequently rather than displaying it. For wall display, which is how most buyers use it, the visual impact at normal viewing distance is consistently described as stunning.

Each Hashira carries a Nichirin sword colored by their breathing style. Rengoku's flame blade is the most visually dramatic of the set. Browse the full Nichirin Sword lineup including Tanjiro, Giyu, Zenitsu, Mitsuri, Muichiro, Shinobu, Sanemi, Kanao, Inosuke, and Kokushibo.

Includes white and blue scabbard. Stand not included. Free US shipping with 30-day money-back guarantee.

Part of our Rengoku Sword collection.

  • Kyojuro rengoku's nichirin - the flame hashira whose mugen train arc became the emotional anchor of kimetsu no yaiba.
  • Black and red raging fire pattern along the blade - unmistakable from across a room and screen-accurate to the anime design.
  • Flame-shaped alloy tsuba with orange border and red-yellow core - multiple color layers matching the anime's detailed guard exactly.
  • White cord-wrapped handle with pu leather saya in white and blue diamond pattern, referencing rengoku's haori.
  • 40.5 inches overall at 3.2 lbs, 1045 carbon steel. note: intricate flame tsuba has multiple paint layers - ideal as a display piece.

Specification

Product Specifications
Item NumberTK-JP-G10362
Primary ColorWhite
Primary Material1045 Carbon Steel
ThemesDemon Slayer
Saya ColorBlack-red
Saya MaterialHardwood Lacquer
Saya ThemeFlame
Tsuka ColorWhite
Nagasa ColorBlack-red
Sageo ColorOrange
Tsuba ColorOrange
Tsuba ThemeFlame
Blade EngravingFlame
StyleKoshirae
Ip AnimeDemon Slayer - Rengoku
Dimensions40.5 x 1.3 x 0.3 Inches
Weight3.2 Pounds
Packing Size43.4 x 3.9 x 3.14 Inches
Shipping Weight3.3 Pounds

Customer Reviews66

Jan 08, 2026 14:54

Got here very fast (within about 4-5 days). Looks awesome as a centerpiece on my wall. Has a very durable feel to it. Would purchase from here again in the future.

Dec 03, 2025 18:15

Amazing craftsmanship, will buy again from you guys!

Oct 28, 2025 13:36

I just got my Rengoku katana and honestly, I love it! It looks amazing — the colors and design are spot-on, and it feels awesome in my hands. I saw some people say their saya (scabbard) was a bit loose, but mine fits perfectly and holds the blade nice and snug.r
It took 27 days to arrive, but I didn’t mind the wait at all. The customer support was amazing ❤️ — super kind and really fast to reply. Every time I messaged them, they answered within just a few hours and kept me updated about my order.r
The paint is a little delicate, so just handle it with care, and there are a few tiny paint imperfections if you look really closely, but nothing major at all. Overall, it’s almost perfect — it looks spectacular, feels great, and I seriously can’t wait to hang it on my wall. It really makes you feel like the flame hashira himself🔥🔥🔥🔥🔥r
I recommend it with my whole heart — it truly makes me want to set my heart ablaze 🔥

Oct 15, 2025 15:43

Just got my demon slayer katana and it was just like the picture love planing one buying a other one soon.

Oct 12, 2025 13:01

It looks great thank you very much for you hard work on making it

Feb 20, 2025 07:23

Out the box you can tell the craftsmanship. Its exactly the quality you would want for the price and if I want another katana I'm definitely checking here.

Jan 08, 2025 12:47

Ordered the Rengoku replica sword as a Christmas gift and it was a huge hit!

Jan 04, 2025 13:22

Amazing product as described beautiful blades and made well! Only complaint is it wasn’t sent with a box

Dec 28, 2024 14:34

Got it for my fiancé and he loves it! I would definitely recommend this and to know that this site was not a scam. Highly recommend

Dec 26, 2024 04:03

Ordered the replica of Rengoku’s sword from demon slayer as a Christmas gift for my husband. He was so surprised and absolutely loved it! The product is well made and the details are amazing! Would recommend TrueKatana to anyone looking to purchase a well made Katana product.

Dec 16, 2024 12:01

bought this as a christmas gift for my boyfriend and it looks and feels amazing!!!

Sep 22, 2024 07:50

I love the craftsmanship of the sword. It be the best gift for my nephew. Thanks

Sep 18, 2024 11:44

Great product! Very well made, and amazing attention to detail. It came sooner than expected, very happy with this product, would certainly order again.

Sep 07, 2024 13:01

It looks amazing way better than I expected

Aug 15, 2024 13:07

I didn't get any shipping notifications, but the sword got here in a timely fashion and is amazing.

Aug 08, 2024 14:37

Shipped fast and looks great! Minus 1 star cause tsuba wore a hole through the side and scratched/chipped some paint off. Besides that I’m very pleased

Aug 04, 2024 15:51

Came in fairly quick considering where it was shipping from. Blade was oiled nicely upon arrival. The tsuba was a bit scratched but other than that it was exactly what I ordered.

Jul 22, 2024 09:32

I bought 2 Katanas as a birthday gift and am so impressed by the quality of everything! the blades were sharp, the wood case was solid and beautifully wrapped. i almost kept them for myself but i will CERTAINLY be back for more in the future!

Apr 25, 2024 06:08

Speedy delivery, perfect quality

Apr 22, 2024 13:09

Although the sword is great, there were some minor damages (chips in paint) that hindered the experience.

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