What color is Rengoku's sword?

Rengoku's Nichirin blade is black with a red flame pattern along the edge, featuring a flame-shaped handguard (tsuba) with a red and yellow core.

How do you do Rengoku's eyebrows?

Use a black eyeliner pencil or face paint to draw thick, angled eyebrows that split into two distinct points at the outer ends.

Is it hard to style the Rengoku wig?

It can be tricky due to the spikes; buying a pre-styled character wig and touching it up with hairspray is highly recommended for beginners.

AI-generated example

Kyojuro Rengoku Costume

Set your heart ablaze with the ultimate Flame Hashira look.

Kyojuro Rengoku is the beloved Flame Hashira from the hit anime Demon Slayer: Kimetsu no Yaiba. Fans choose this costume to channel his passionate, heroic spirit and striking visual design. The look centers on a dark Demon Slayer Corps uniform paired with a vibrant, flame-patterned haori cape.

Difficulty: Medium
Time: ~45 min
Budget: $50–150

See yourself as Kyojuro Rengoku →What you need Buy the Kyojuro Rengoku costume

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See yourself as Kyojuro Rengoku

One clear photo of yourself; we render you in this costume — face untouched, full body, about 20 seconds.

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Kyojuro Rengoku costume — Example look · AI-generated

You as Kyojuro Rengoku

Result

What you need for a Kyojuro Rengoku costume

Short on time? Buy it ready-made

Spirit Halloween sells the complete Kyojuro Rengoku costume — one box instead of 6 pieces.

Shop Kyojuro Rengoku at Spirit ↗

Demon Slayer Corps Uniform
A dark brown or black button-up jacket and matching hakama pants, secured with a plain white belt.
DIY: Use a black button-down shirt and black jogger pants, then add a wide white belt.
Amazon
Flame-Patterned Haori
A white cape-like coat featuring a bold red and yellow flame gradient pattern along the bottom hem.
DIY: Paint red and yellow fabric dye flames onto the bottom of a plain white oversized kimono jacket.
Amazon
White Leg Wraps
White kyahan wraps worn around the calves, secured with thin red fabric ribbons.
DIY: Wrap white athletic tape or fabric strips around your calves and tie them with red ribbon.
Amazon
Zori Sandals
Traditional Japanese straw or fabric sandals with red straps, worn over white split-toe tabi socks.
DIY: Wear black flip-flops with red straps over white socks.
Amazon
Rengoku Wig
A bright yellow, heavily spiked wig with red streaks at the tips and long side bangs framing the face.
DIY: Style a long yellow wig using heavy-duty hair gel and red fabric marker on the tips.
Amazon
Toy Nichirin Sword
A replica katana featuring a flame-shaped handguard with a red and yellow core, housed in a white sheath.
DIY: Cut a flame-shaped handguard out of cardboard, paint it red and yellow, and slide it onto a toy katana.
Amazon

Rather not assemble it? See ready-made Kyojuro Rengoku costumes at Spirit Halloween ↗

How to put it together

1
Put on the black or dark brown Demon Slayer jacket and hakama pants, securing them at the waist with the white belt.
2
Wrap the white kyahan leg wraps around your calves and tie them securely with the red ribbons.
3
Put on the white tabi socks and slip into the zori sandals.
4
Drape the white, flame-trimmed haori cape over your shoulders so it flows freely.
5
Put on a wig cap, then secure the spiky yellow and red Rengoku wig, adjusting the bangs to frame your face.
6
Tuck the sheathed toy katana into your white belt on the left side, ready to draw for photos.

Makeup & hair

Style the spiky yellow wig with strong-hold hairspray to keep the spikes defined. For makeup, draw thick, fork-shaped black eyebrows and use light eyeliner to mimic Rengoku's intense, wide-eyed anime expression.

Kyojuro Rengoku for couples, groups, kids & more

couples: Pair with Tanjiro Kamado or Akaza for an epic hero-versus-villain duo.
group: Join other Hashira cosplayers, such as Giyu Tomioka or Shinobu Kocho, to form the ultimate Demon Slayer Corps group.
kids: Look for kid-sized Demon Slayer uniform sets and swap the plastic sword for a lightweight foam version.
Plus size: Look for custom-sized uniform sets online, or use a stretchy black base layer under an oversized flame haori.
pet: Dress your dog or cat in a mini flame-patterned cape.

Tips

Use bobby pins and a wig cap to keep the heavy, spiky wig securely on your head throughout the day.
If walking a lot at a convention, swap traditional wooden zori for comfortable black flip-flops with red straps.
Practice Rengoku's signature wide, confident smile and upright posture for photos.

Kyojuro Rengoku costume FAQ

What color is Rengoku's sword?: Rengoku's Nichirin blade is black with a red flame pattern along the edge, featuring a flame-shaped handguard (tsuba) with a red and yellow core.
How do you do Rengoku's eyebrows?: Use a black eyeliner pencil or face paint to draw thick, angled eyebrows that split into two distinct points at the outer ends.
Is it hard to style the Rengoku wig?: It can be tricky due to the spikes; buying a pre-styled character wig and touching it up with hairspray is highly recommended for beginners.

Did you know? Rengoku's flame-shaped handguard is later passed down to Tanjiro Kamado, who attaches it to his own sword as a tribute.