If your group chat is already planning October, these KPop Demon Hunter costume ideas are about to make your Halloween the main event. Netflix’s animated hit ‘KPop Demon Hunters’ turned HUNTR/X — Rumi, Mira, and Zoey — into instant style icons, and their stage looks are surprisingly easy to recreate with pieces from your closet and a few craft-store finds.
The movie gives you so much to work with: the trio’s matching stage outfits, their everyday streetwear, the Saja Boys’ rival-group glam, and Rumi’s dramatic demon-form reveal. That means costume options for solos, couples, and full groups — whether you want pretty, fierce, or full-on demon.
Below you’ll find 14 costume ideas covering every HUNTR/X member, the Saja Boys, and the hair, makeup, and props that sell the look. Most can be pulled together on a budget with thrifted basics, so you can look stage-ready without spending like a pop star.

Woman in a Rumi KPop Demon Hunters costume with demon-pattern markings on her arm and glowing eyes on stage
HUNTR/X Group Costume Ideas
Rumi’s Stage Outfit
Rumi’s signature stage look is a cropped performance top with high-waisted bottoms in the trio’s coordinated colors, finished with layered necklaces and bold boots. Start with a black or deep-purple crop top and matching high-waist shorts or a skirt, then add fishnet or sheer layers underneath. The key is stage polish: everything fitted, everything shiny, hair big and dramatic.
Try this: Add iron-on rhinestones along the crop top edges and boot tops — they catch party lights exactly like real stage lighting.
Mira’s Look
Mira brings fierce energy with edgier styling: asymmetrical cuts, dark eyeliner, and an all-black base with one statement color pop. A moto jacket over a mesh top with leather-look pants nails her vibe, and these pink and black outfit ideas add the perfect two-tone inspiration. Finish with a choker, stacked rings, and boots with attitude.
Try this: Tease the crown of your hair for volume and sweep one side behind your ear — Mira’s silhouette is all sharp angles.
Zoey’s Look
Zoey is the playful one, so lean into cute-but-cool: a pleated mini skirt, an oversized graphic tee or cropped sweatshirt, and chunky sneakers or platform boots. Her style mixes sporty and sweet, so add colorful hair clips, layered socks, and a mini backpack as a prop. It’s the most comfortable HUNTR/X costume — perfect for a long night of parties.
Try this: Tie the oversized tee in a side knot and push up the sleeves — it instantly looks styled instead of sloppy.
Full Trio Group Costume
The ultimate group costume: all three HUNTR/X members together in coordinated stage outfits. Pick a shared color palette — black with purple, pink, and blue accents — so you read as a unit while each member keeps her signature details. These plus-size outfit ideas help every trio member find a flattering stage fit, whatever her size.
Try this: Assign each person one accent color — Rumi purple, Mira red, Zoey blue — to keep the trio visually distinct.
Chibi Street-Style HUNTR/X
For a cute twist, do a casual street-style version of the trio: matching oversized hoodies or varsity jackets with each member’s name or initial, plus jeans and sneakers. It’s comfortable, affordable, and instantly recognizable to fans — especially with the right hairstyles and a group lightstick. Perfect if you want the fandom nod without a full stage costume.
Try this: Use iron-on letters for the jacket backs and let everyone customize their own — each member’s name in their signature color looks amazing in photos.

Close-up of KPop Demon Hunters costume details: lightstick prop, stage makeup, and idol-style accessories
Solo KPop Demon Hunter Costumes
Rumi Demon-Form Reveal
Rumi’s half-demon reveal is the most dramatic solo costume from the movie: her stage outfit torn or half-transformed, with glowing violet demon markings tracing up one side of her face, neck, and arm. Wear the stage look on one side and add ripped fabric, dark contacts, and painted markings on the other. It’s a showstopper that fans will immediately recognize.
Try this: Use UV-reactive body paint for the markings — under blacklight at a party, they glow like real demon magic.
Jinu With Demon Markings
Jinu, the demon with a complicated heart, makes a striking costume: dark, elegant streetwear with violet demon patterns winding across his face, neck, and hands. A long dark coat over black layers gives him presence, while the glowing markings do the storytelling. It’s a great pick for anyone who wants the movie’s most talked-about character.
Try this: Style hair swept back with strong-hold gel and add one violet streak — Jinu’s look is sleek, not messy.
Saja Boy Costume
The Saja Boys are the rival demon boy band, so think K-pop idol glam with a sinister edge: satin shirts, embellished jackets, and perfectly styled hair. Pick rich jewel tones like emerald or burgundy, add rhinestone details, and finish with subtle demon markings at the collar or wrists. Solo or as a group, the Saja Boys are instantly recognizable to fans.
Try this: Thrift a satin button-down one size up and roll the sleeves — idol style is polished but never stiff.
Fan-Concert Attendee Look
Not every costume needs a stage outfit — go as a HUNTR/X superfan headed to the concert: a homemade fan tee, lightstick, face stickers with the members’ names, and glittery concert makeup. It’s comfortable, funny, and relatable, plus it works as a last-minute costume since most pieces come from your closet. Bonus: you get to carry a lightstick all night.
Try this: Make the fan tee with fabric markers on a plain white shirt — write your bias member’s name in big glittery letters.
Hunter Casual Streetwear
The girls’ off-duty looks are a whole costume on their own: oversized hoodies, cargo pants, sneakers, and effortless hair. It’s the easiest HUNTR/X costume to pull off, and these tips for how to look expensive on a budget prove thrifted streetwear can still look polished. Add subtle demon-hunter details like a small tattoo sticker or a toy weapon prop for the finishing touch.
Try this: Cuff the cargo pants once and wear chunky sneakers or platform boots — the balanced silhouette reads streetwear, never pajamas.

Group of friends in Saja Boys and HUNTR/X KPop Demon Hunters costumes at a Halloween party with festive lights
Hair, Makeup & Accessories to Sell the Look
Rumi’s Purple-Streak Hair
Rumi’s long dark hair with violet-purple streaks is her most recognizable feature. Clip-in colored extensions give you the streaks without dye commitment, and they blend surprisingly well with dark hair. Tease the roots for stage-worthy volume, then let the purple pieces frame your face — it’s the single detail that makes every Rumi costume read instantly.
Try this: Spray the extensions with a little dry shampoo first — it kills the synthetic shine so they blend with real hair.
Demon Pattern Arm Tattoos
The glowing violet demon patterns are what separate a generic K-pop costume from a true KPop Demon Hunters look. Use temporary tattoo paper or body paint to draw swirling patterns up one arm, across the collarbone, or along the jawline. Keep the designs asymmetrical and organic — in the movie, the markings look like they’re alive and spreading.
Try this: Set body paint with translucent powder and setting spray so the markings survive hugging, dancing, and photo ops.
HUNTR/X Lightstick Prop
No K-pop costume is complete without a lightstick, and a DIY HUNTR/X version is easier than you’d think. Wrap a clear plastic orb or dome in translucent purple film, mount it on a decorated handle, and add an LED tea light inside for the glow. Carry it to every party — it’s both a prop and a conversation starter with fellow fans.
Try this: Use a frosted ornament ball from the craft store — it diffuses the LED light evenly for a professional glow.
Stage Makeup and Glowing Eyes
Idol-stage makeup is bolder than everyday glam: sharp winged liner, glittery eyeshadow, gradient lips, and highlighted cheekbones. For the demon side, add violet or white contact lenses and a touch of shimmer on the demon markings. Finish with setting spray — stage makeup has to survive hours of performing, or in your case, partying.
Try this: Apply glitter eyeshadow with a slightly damp brush and pack it on — the damp base intensifies pigment and keeps fallout off your cheeks.
Get Ready to Take the Stage
The best KPop Demon Hunter costume ideas are the ones that let you feel like a star for the night. Whether you go full HUNTR/X trio, channel Jinu’s demon charm, or keep it casual as a concert superfan, the key is confidence — idols never doubt the spotlight, and neither should you.
Start gathering pieces now so you’re not panic-shopping the week of Halloween. Test your demon markings and stage makeup ahead of time, charge your lightstick, and get ready — this Halloween, the demons don’t stand a chance.


Leave a Reply