What is K-Pop: Demon Hunters?

It is an animated musical action-adventure about a world-renowned K-pop girl group who secretly hunt demons between global performances.

How do I get the signature Ruby look?

Combine trendy K-pop stage wear like pleated skirts and crop tops with tactical gear like body harnesses and combat boots.

What props should I carry?

A stylized, glowing toy sword or dual daggers perfectly match the demon-slaying theme of the show.

AI-generated example

Ruby Costume

Slay demons in style with this K-pop inspired techwear look.

Inspired by the animated action-adventure K-Pop: Demon Hunters, Ruby's look combines high-energy K-pop stage fashion with functional, badass demon-slaying gear. This costume is perfect for fans of modern Korean pop culture, streetwear, and action-packed fantasy aesthetics. The outfit features a sleek mix of techwear, tactical harnesses, and vibrant performance-ready details.

Difficulty: Medium
Time: ~45 min
Budget: $50–120

See yourself as Ruby →What you need Buy the Ruby costume

Try it on

See yourself as Ruby

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

Choose or drop a photo of yourselfJPG · PNG · HEIC

One render, $1. No account needed — if it fails you're not charged. Pricing.

Your photo is sent to Google's Gemini API to make the render and isn't used for training. Renders are AI-generated and labelled.

Want a different costume on this photo, or a whole group in costume? Open the Try-On Studio.

Ruby costume — Example look · AI-generated

You as Ruby

Result

What you need for a Ruby costume

Short on time? Buy it ready-made

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

Shop Ruby at Spirit ↗

Sleek crop top
A form-fitting black or neon pink crop top to serve as the base layer.
DIY: Cut an old black t-shirt into a fitted crop top.
Amazon
Techwear pleated skirt
A black pleated utility skirt featuring cargo pockets or hanging straps.
DIY: Attach black ribbon straps with safety pins to a standard black pleated skirt.
Amazon
Tactical body harness
A black strappy chest or waist harness made of faux leather or nylon webbing.
DIY: Crisscross black elastic bands and secure them with safety pins over your top.
Amazon
Fishnet tights and high socks
Classic black fishnet tights paired with over-the-knee black athletic socks.
DIY: Use any black high socks you already own.
Amazon
Platform combat boots
Chunky, heavy-duty black lace-up combat boots with a thick platform sole.
DIY: Use standard black boots and wrap the ankles with black athletic tape for a tactical look.
Amazon
Toy demon-slaying sword
A stylized toy katana or fantasy sword, ideally with glowing neon accents.
DIY: Wrap a plastic toy sword in neon pink or blue reflective tape.
Amazon

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

How to put it together

1
Put on the black or neon pink crop top as your base layer.
2
Slip on the black pleated techwear skirt, adjusting any utility straps to hang loosely.
3
Layer the tactical body harness over your torso, adjusting the straps for a snug, secure fit.
4
Pull on the fishnet tights, then layer the over-the-knee black socks directly over them.
5
Lace up your chunky black platform combat boots securely.
6
Style your hair and apply makeup to match the high-energy K-pop aesthetic.
7
Equip your stylized toy sword or glowing prop weapon to complete the demon hunter look.

Makeup & hair

Style your hair in high space buns or double ponytails with clip-in neon pink hair extensions. Apply bold K-pop style makeup featuring winged eyeliner, face glitter under the eyes, and a vibrant pink lip tint.

Ruby for couples, groups, kids & more

couples: Pair up with a partner dressed as a stylized, neon-accented shadow demon.
group: Gather friends to dress as the entire K-pop demon-hunting group, with each member choosing a unique neon accent color.
kids: A simplified version featuring a pink t-shirt, black skirt, comfortable sneakers, and a foam toy sword.
Plus size: Opt for a stretchy high-waisted pleated skirt and a supportive crop top paired with an adjustable nylon harness.

Tips

Make sure your tactical harness is fully adjustable so it fits comfortably over your top without pinching.
Add reflective tape to your boots or skirt to catch the light beautifully in photos.
Choose comfortable platform boots if you plan on dancing or walking around a convention all day.

Ruby costume FAQ

What is K-Pop: Demon Hunters?: It is an animated musical action-adventure about a world-renowned K-pop girl group who secretly hunt demons between global performances.
How do I get the signature Ruby look?: Combine trendy K-pop stage wear like pleated skirts and crop tops with tactical gear like body harnesses and combat boots.
What props should I carry?: A stylized, glowing toy sword or dual daggers perfectly match the demon-slaying theme of the show.

Did you know? The aesthetic of the show brilliantly blends colorful, high-energy Korean pop music style with dark, action-packed fantasy elements.