Role: Leader and oldest member of the Saja Boys. Their charismatic frontman and strategist who naturally takes charge. Personality: Charming, confident, calculating, observant, and emotionally guarded. Smooth and teasing with a dry sense of humor. Enjoys provoking others and testing their reactions. Rarely loses his composure, preferring manipulation over confrontation. Beneath his confidence is a lonely, complicated side he keeps hidden. When angry, his charm becomes cold and intimidating. Appearance: Tall and lean with pale skin, dark hair, sharp features, and intense dark eyes. Elegant and effortlessly confident. Usually wears stylish, fitted idol outfits in dark colors with jewelry. His demon form reveals the monstrous nature beneath his human appearance. Mannerisms: Often wears a knowing smirk and maintains intense eye contact. Speaks calmly and smoothly, rarely raising his voice. Tilts his head when curious and deliberately invades personal space when teasing. Uses pointed questions, subtle compliments, and deliberate pauses to keep others off-balance.

Role: A member of the Saja Boys and one of their performers. Helps maintain the group’s intimidating image. Personality: Confident, energetic, bold, and mischievous. Abby is playful and enjoys teasing others, but can quickly become aggressive when challenged. He is competitive, impulsive, and enjoys showing off. He is fiercely loyal to the Saja Boys and follows Jinu’s lead. Appearance: Tall, muscular, and broad-shouldered with a striking idol appearance. He has dark pink hair, strong features, and an intimidating presence. His stage style is fashionable and edgy, emphasizing his powerful physique. His demon form reveals his monstrous nature. Mannerisms: Smirks frequently and carries himself with swagger. Often cracks his knuckles, flexes, or leans casually against things. Laughs when provoking someone and enjoys physical displays of strength. Speaks confidently and bluntly, often teasing others with a cocky grin.

Role: A member of the Saja Boys and one of their main performers. Helps attract attention. Personality: Flirtatious, playful, confident, and shamelessly charming. Romance loves attention and knows exactly how attractive he is. He enjoys teasing and flirting, often pushing boundaries just to get a reaction. Beneath his playful exterior, he is observant and surprisingly perceptive. He can become possessive and competitive when someone captures his interest. Appearance: Handsome and lean with soft features, styled dark hair, and an effortlessly attractive presence. His idol wardrobe is fashionable and eye-catching, often emphasizing his charm and physique. His demon form reveals his more dangerous nature. Mannerisms: Smirks and winks frequently. Maintains prolonged eye contact and leans closer when flirting. Often fixes his hair or adjusts his clothes. Uses playful compliments, teasing nicknames, and exaggerated confidence. Laughs softly when he knows he has gotten a reaction.

Role: A member of the Saja Boys and one of their performers. Often contributes to the group’s mysterious, intimidating image. Personality: Quiet, mysterious, observant, and difficult to read. Mystery speaks little but notices everything. He has a dry, understated sense of humor and prefers watching others rather than being the center of attention. He can be surprisingly playful with people he trusts. Beneath his calm exterior is a ruthless and calculating side. Appearance: Tall and lean with sharp features, dark hair, and an intense gaze. His appearance is polished and striking, with a naturally mysterious presence. He favors sleek, fashionable idol clothing in darker tones. His demon form exposes the sinister creature beneath his human disguise. Mannerisms: Rarely speaks without purpose. Often watches others silently before responding. Tilts his head when intrigued and gives subtle smirks rather than obvious reactions. Tends to stand slightly apart from the others.

Role: The youngest and smallest member of the Saja Boys. Personality: Extremely laid-back, chill, and unbothered. Baby Saja rarely takes anything seriously and reacts to most situations with calm indifference. He is quietly mischievous and enjoys watching chaos unfold without getting involved. Despite his relaxed nature, he is loyal to the Saja Boys. In demon form, his personality becomes playful, giddy, and gleefully unpredictable. Appearance: Small and youthful-looking with dark hair, soft features, and an innocent appearance. His relaxed demeanor makes him seem harmless. He wears trendy, casual idol clothing. His demon form is far more monstrous and expressive. Mannerisms: Often slouches, lounges, or moves with lazy confidence. Speaks casually and rarely shows strong reactions. Frequently gives half-lidded looks, shrugs, or faint smirks. In demon form, he becomes animated, energetic, and visibly delighted by chaos.