Demon Hunters

He has a rather playful and charismatic personality: he loves to flirt, attract attention, and tease others a little. However, he also has a deeper side—he's genuinely attached to his bandmates and tries to support them.

In his human form, Romance has a slender build and long pink hair styled into a heart shape. He has a slightly angular face, large pink eyes, often rosy cheeks, and light makeup. In everyday life, he wears a collared blouse with puffed sleeves, simple trousers, high-soled shoes, and accessorizes with rings and necklaces.

In his demonic form, many of his traits remain, but noticeable differences emerge: his skin turns pale blue (some sources say it's a grayish-blue with lilac markings), his eyes glow yellow, and he develops clawed hands and demonic markings. In this guise, he dons traditional Korean clothing: a black jeogori jacket under a jeonbok coat, secured with a shojodae belt, and an additional hat.

What is his character like?
Confident and vain, Abby loves to highlight his attractiveness and physical fitness—it's no wonder he's nicknamed "Abs." He eagerly displays his assets and attracts attention.
Charismatic and artistic. He dances and sings brilliantly, has a confident stage presence, and knows how to be the center of attention.
Observant. Notices how others react to him (for example, he notices that Mira and Zoe are looking at him).
Provocative. Enjoys playing on emotions, acts boldly, and enjoys closeness and interaction with other group members.
Aggressive when necessary. Like the other Saja Boys, he doesn't hesitate to engage in combat if the plan calls for action.

Human form
Physique. Abby is the tallest and most muscular of the Saja Boys. His signature feature is his pronounced abs, which is where he got his nickname "Abs."
Hair. Short, styled, deep magenta (almost pink).
Skin: Fair, with a light tan and blush on the cheeks.
Eyebrows. A characteristic detail is the pointed, "barb-shaped" arch in the middle.
Clothing: Typically wears tight-fitting Hawaiian shirts (sometimes sleeveless, revealing her midriff), skinny jeans, and casual shoes. She often adds a mustard-yellow beanie. In some scenes (such as for the TV show), she appears in a pink version of the shirt. Her nails are well-groomed, with designs in black, pink, and yellow.
Demonic form
When transformed, the appearance changes noticeably:

The skin takes on a blue-violet tint, and blue stripes appear.
The eyes change from brown to bright yellow (and begin to glow).
Claws appear on the hands.
Demonic patterns appear in the image.
The outfit also transforms: Abby dons a large black hat, a black tunic with a gold chain, a light fabric shirt (which can open during combat, revealing a muscular body), shiny leather pants, and knee-high platform boots with buckles.

What is his character like?
Playful and childish on stage, he deliberately plays up the "cute baby" persona, pouting and making funny gestures to charm his fans.
Cunning and calculating. Behind the sweet mask lurks a demon who manipulates people and takes advantage of the fact that they underestimate him.
Sarcastic and aloof, he often appears bored and indifferent offstage and enjoys making fun of others.
Competitive. For example, he enjoys participating in challenges—and even wins a spicy food eating contest.
Emotionally reserved, but not without emotion. On rare occasions, he's genuinely surprised and reacts to the powerful actions of others (for example, he was shocked when Jinwoo sacrificed himself for Rumi).
He loves little things that enhance his image. He enjoys lollipops, changes the color of his nail polish, and has a high tolerance for spicy foods.

Now let's talk about his appearance in more detail. He has quite a contrasting appearance, which changes depending on his form.

In human form (when he disguises himself as a K-pop idol), Baby Saji:

fluffy turquoise hair styled into a mop top (bun);
a round, rather small face with a soft expression, a small nose and soft lips;
turquoise eyes and eyebrows;
pale skin;
He wears makeup and paints his nails (mint or purple shades are seen in scenes).
In terms of clothing, in person, he pairs loose sweaters, collared shirts, newsboy caps (sometimes worn backwards), and simple trousers or ripped skinny jeans. High-top sneakers complete the look. On stage, he often acts childishly, making playful gestures and sometimes using childish props.

In the demonic form, many features are retained, but noticeable frightening details appear:

the skin becomes pale blue or grayish with dark purple patterns (similar to veins) that glow faintly in neon light;
the eyes glow (various sources indicate golden or yellow hues), the pupils become vertical;
clawed hands and sharp fangs appear;
facial features become sharper.
In the demon world, he also wears traditional Korean clothing: a black jeogori jacket under a jeonbok coat, a seochodae belt, baji trousers, and hae shoes. A traditional headdress (gat) completes the look.

He has quite a contradictory character:

Enigmatic and silent, Mystery barely speaks, maintains a distant demeanor, and his eyes are always hidden under his long bangs—this adds to his air of mystery.
Reserved, almost shy, he often adopts modest, embarrassed poses, as if uncomfortable, and shows little emotion.
Mischievous and even a little wild. He also has a playful side: for example, he barked at a fan for no reason during an autograph session and acted almost like a puppy, retreating and whining when scolded.
Aggressive when a plan goes wrong. He's the first of the Saja Boys to attack Zoe when things start going wrong.
With a hint of romance. Mystery is Zoe's temporary romantic interest, and she's the one who gets to see his face without bangs.

This is what he looks like in human form (when disguised as a K-pop idol as part of Saja Boys):

His signature look is his long, lavender- or periwinkle-colored hair, with bangs that completely obscure his eyes. This often leaves his face in shadow, creating an air of mystery. Looking closely, he has a small nose, thin lips, and a soft, V-shaped chin. He typically wears a sweater vest over a sleeveless turtleneck, ripped skinny jeans, earrings, arm warmers, necklaces, and sneakers. He also has a purple manicure.

And this is what he looks like in demonic form:

Here, he retains many human traits, but distinctly demonic elements appear: his skin turns purple with patterns, his hands develop claws, and sharp fangs emerge from his teeth (sometimes disguised as earrings in his human form). In this form, he dons traditional Korean clothing: a black hanbok (consisting of a jeogori, jeonbok, and baji), a shojodae belt, hye shoes, and a gat headdress.

There's another special look—during her performance of "Your Idol." There, Mystery blends tradition and modernity: a gat, a black sochangi coat with demonic patterns on the cuffs and hem, a crew-neck shirt, a necklace, a pendant, asymmetrical trousers (the right leg is shortened), a stocking with a garter on the right leg, and combat boots.

What is his character like?
Charismatic yet two-faced, Jinu is a charmer and uses his charm to hide his darker deeds. He manipulates others (for example, by withholding details about his past to avoid looking bad) because he puts his own interests first.
He is tormented by guilt and shame. Four hundred years ago, he made a deal with the demon king Gwi-Ma to escape poverty, but in doing so, he abandoned his mother and sister. This pain and shame for his betrayal haunt him for a long time, and he even hopes that Gwi-Ma will erase his memories to relieve his guilt.
He shows flashes of humanity. Despite being a demon and serving evil, Jinwoo is capable of good deeds: he spared Rumi, carefully threw away a bouquet from a fan (instead of dismissively tossing it aside like other demons), cares for animals, and was touched by a child's drawing.
Awkward and clumsy. He can be shy and loses his cool in emotional situations—for example, he blushes when an older woman suggests Rumi is his girlfriend.
He begins to genuinely care for Rumi. At first, they are enemies, but over time, Jinwoo develops compassion for her: he understands what it's like to be ashamed of who you are. In the end, he even decides to confront Gwi-Ma and sacrifices himself to help Rumi.

This is what he looks like in human form:

He has straight black hair, often with bangs, dark brown eyes, and pale skin.
Muscular build, height about 180 cm.
He has pierced ears and loves accessories: earrings, necklaces, and sometimes wears sunglasses.
In his idol persona (he's the leader of the demon boy band Saja Boys), Jinwoo combines modern fashion: shirts with a slightly unbuttoned collar over a T-shirt, ripped skinny jeans, and high-top sneakers.
And this is what he looks like in demonic form:

The skin takes on a light purple-blue hue and becomes covered with dark vein-like patterns.
Sharp claws and fangs appear.
The eyes become yellow and the pupils become narrow, vertical slits.
In this form, he wears traditional Korean clothing reminiscent of the Joseon saj (grim reaper). These include a tattered black hanbok (consisting of a jeonbok vest, jeogori top, and baji pants), a seyode belt, hye shoes, and a gat headdress.
There's also a retro twist: in flashbacks set during the Joseon Dynasty, a young Jin-woo is shown with his hair pulled back into a topknot (topnok) and held in place by a dirty white cloth headband. Later, when he became a court musician, he wore a clean, pale blue hanbok and a matching headband.

What is her character like?
Cheerful and energetic, Zoe constantly inspires the team with positivity, loves interacting with fans, and genuinely enjoys the little things.
Naive and gullible, she can believe dubious things (for example, that tonics actually improve the voice) and doesn't immediately notice changes in her friends' behavior.
She's very loyal. She values ​​her friends greatly and tries to support them, and in her conflict with Rumi, she worries that she can't tell the truth.
She's easily distracted. For example, she can't resist Saja Boys songs—they instantly captivate her.
She strives to please. It's important to her to be appreciated, and she sometimes worries that she's being too clingy or, conversely, not needed enough.
Struggling with inner doubts. Growing up in the US and having Korean roots, Zoe feels like an outsider in both cultures and sometimes suffers from insecurity.
She's bold in battle, but not without fear. She's confident with knives, but when it comes to those close to her (as in the case of Rumi), she's hesitant: she doesn't want to hurt those she loves.

Origin and build. Zoey is Korean-American. She is petite and slender, with long, slender limbs. She is also the shortest in her HUNTR/X group.
Her face. She has rounder features, especially the shape and slant of her eyes. Her eyes are light brown (sometimes described as sepia-toned). Another detail: Zoe is the only one in the group with freckles.
Hair. Black. It was braided into two buns ("space braids"), complemented by micro-bangs and loose strands on the sides. Incidentally, the character was originally planned to have a turquoise side-swept haircut, but this idea was abandoned in the final version.
Ear piercings. She has six piercings on each ear: in the lower and upper lobe, the nacelle, the tragus, and the scaphoid. She wears a gold bracelet on her right wrist, black rings, and double silver hoops.
Zoe also has several memorable looks that fans often discuss:

"How It's Done." A turquoise strapless top with black straps and a pink lotus print, purple and black geometric parachute pants, and chunky yellow and black sneakers. A yellow norige (a traditional Korean lucky charm) is pinned to the hip.
"Golden." A cropped black top with gold accents and a diamond neckline, a mini jacket, and a cropped white pleated skirt, a white belt with gold pendants. The boots are white, mid-calf, with gold heels and laces. Incidentally, this version of the outfit varies slightly in different scenes (for example, in the music video and at the ceremony): in some scenes, the white jacket appears, while in others, white shoulder pads with gold trim appear.
After defeating Gwi-Ma. A simple street style look: a bright yellow hoodie (with Derpy on it), short black shorts, long green socks, and white and purple sneakers.

She has a rather bright and complex personality: she's straightforward, sarcastic, and brutally honest, sometimes even caustic. She can freely point out her friends' misbehavior—for example, she often notices odd behavior in Rumi. However, beneath her tough exterior lies a deep caring for her loved ones: Mira genuinely cares for Rumi and Zoe, tries to support them, and helps keep the team on track.

Mira also has a short fuse—she can react sharply when things go wrong (for example, when demons sabotage the group's affairs). But she's also not averse to fun: she easily fools around with friends and generally knows how to relax.

Mira is also a little insecure because of her past: as a child, she was considered a “problem child,” and somewhere deep down she still worries that she is unworthy of family and friends.

I have selected a few details to help you better imagine her image.

Face. Mira has an angular, elongated face with a V-shaped chin and sharp, monolithic dark brown eyes.
Hair. Bright pink (some descriptions say dark pink), hip-length. Two strands are braided, and two more, parted in the middle, frame her face. Incidentally, in the story, her hair is naturally black—she achieves the pink color with makeup.
Build: She is tall (around 170.4 cm) and slender, but noticeably taller than her HUNTR/X bandmates Rumi and Zoe.
Mira also has some recognizable accessories: she often wears round glasses with gold frames (and when she's undercover, square glasses with black frames).

As for style, the heroine has several distinctive looks, and they change greatly in different situations:

"How It's Done" (debut number). A black crop top with a graphic pattern (Honmun waves) and pink "WON'T MISS" lettering, a black necklace with a seashell pendant, a saffron-yellow denim miniskirt with a white chain waistband, a crimson norigae amulet on the thigh, black thigh-high boots with crimson accents and a four-pointed white star at the ends, fingerless gloves with keyholes, and earrings on a triangle chain.
"Golden" (music video). A cropped black bomber jacket with gold accents over an iridescent white crop top, a pencil skirt with pink panels, hip belts, a belt with a gold buckle and dangling chain, and iridescent white combat boots with gold laces.
Incognito (undercover). To avoid attracting attention, Mira opts for a casual look: a white sleeveless button-down top, loose jeans, black sneakers with white laces, a black baseball cap, and round glasses with gold frames.
Gear Up (in combat). Black leather combat suit for mobility: sleeveless top with a high stand-up collar and two

What is her character like?
Driven and hardworking, Rumi takes both her idol career and her mission as a hunter very seriously: she strives to be perfect and doesn't allow herself to slack off.
Responsible, a leader. She feels a duty to her team and the world, often taking charge and trying to keep everything under control.
Kind and caring. She treats her friends Mira and Zoya almost like an older sister: she protects them and genuinely cares for them.
Secretive and vulnerable, Rumi is afraid of being rejected by her friends because she's half-demon, so she hesitates to tell the truth and instead keeps everything bottled up inside.
She's prone to self-sacrifice. Sometimes she acts alone to avoid endangering others, even if it's risky.
Charismatic on stage, but insecure inside. To her fans, she's a bright, confident idol, but in private, she often doubts herself and struggles with her fears.

Origin and physique. Fair-skinned young Korean woman, slim, athletic build.
Hair. Her most noticeable feature is her long, bright purple hair. It's usually worn in a thick braid (sometimes described as "dragon-like") that reaches down to about her calves.
Eyes. In normal form, they are dark brown, with curled corners and long black eyelashes. But in demon form, the left eye changes color: it becomes orange-yellow and glows periodically.
Demonic Markings. Rumi's skin is covered in purple patterns resembling symbols. These aren't just decorations: the more shame she feels for her demonic half (on her father's side), the more noticeable and extensive these markings become. In stressful, angry, or frightening situations, the patterns begin to glow (first pink, and after Rumi accepts her nature, silvery-blue or iridescent). At the story's conclusion, when the heroine fully embraces her heritage, the markings can even appear on her face.
The image in detail
Rumi's appearance is complemented by her style. In everyday life or on stage, she often opts for bold, street-style looks. For example, in the opening scene, she might wear a down bomber jacket over a white crop top (which she uses to cover her demon marks), high-waisted denim shorts, a pink belt with a norige keychain, silver chains, and black platform boots. In other scenes, her style changes: in the "Golden" music video, gold, black, and white predominate, while during the train battle (in the "Takedown" number), she opts for a black and white palette.