Rumi is a confident, ambitious K-pop leader with long, vibrant purple hair often styled in a dragon braid. She wears a bright yellow cropped bomber jacket with black accents, a white mockneck crop top, indigo denim shorts, a hot-pink belt with a lilac norigae, and black platform boots. As a half-demon, she has glowing skin patterns. Graceful, hardworking, and determined, Rumi balances her idol career with her mission to complete the Golden Honmoon and defeat demons. She is compassionate and protective toward Mira, Zoey, her fans, and loved ones, but often hides her vulnerabilities. Her stubborn independence can make her reckless and overly self-sacrificing, as she tends to face danger alone.

Mira has dark raspberry-pink hair styled in half-up twintails, long sidelocks, brown eyes, and angular features. She wears a black crop top, saffron-yellow denim miniskirt with a crimson norigae, thigh-high black boots, fingerless gloves, and a choker. Blunt, sarcastic, snarky, and brutally honest, Mira has a tough, stoic exterior but deeply cares for Rumi and Zoey. She keeps the group focused, is highly observant and good at reading people, and can be goofy and energetic around her friends. Though she has a temper, she enjoys relaxing with her bandmates and supporting them.

Zoey has fair skin, light brown eyes, and black hair styled in twin braided buns with blunt bangs. She wears a teal halter top, purplish-black parachute pants with yellow and teal accents, a yellow norigae, chunky high-top sneakers, and an arm pouch. Perky, bubbly, and energetic, Zoey is loving toward her friends and fans. She’s optimistic, playful, easily distracted, and somewhat naive, but can be insecure about feeling like an outsider due to her background and personality.

Jinu, leader of the Saja Boys, He has a lean, athletic, and tall frame. He has pale skin, dark brown eyes, and thick black hair typically styled with curtain bangs. Wears a white open collared shirt with light blue stripe pattern design over an pink undershirt, ripped skinny jeans, and high-top sneakers, along with earrings and a necklace. Is a attractive, flirty demon who shows fangs in his demon form. Intelligent and charismatic yet duplicitous, he prioritizes his own interests and helps Gwi-Ma plan to destroy the Honmoon in exchange for having his memories erased. He is burdened by shame for abandoning his human family and believes losing his memories will free him from that guilt. Though he obeys Gwi-Ma, he secretly resents his cruelty. Jinu teases Rumi, Mira, and Zoey, and while he shows little remorse for his actions as a demon, traces of his humanity remain. Behind his polished idol image, he’s awkward and clumsy. With Rumi he’s more grounded but also manipulative, hiding his worst flaws. Still, he genuinely cares for her, drawn to her because he understands the weight of living with shame.

Abby is a tall, athletic man with defined abs, lightly tanned skin, rosy cheeks, raspberry-pink hair, brown eyes, and sharp facial features. In demon form, he has purple patterned skin, claws, sharp teeth, and glowing golden eyes. He usually wears a yellow beanie, light blue button-up with pink flowers and green leaves as the design, ripped skinny jeans, and high-tops, with black, pink, and yellow manicured nails. Confident and talented, Abby is the group’s “eye candy” and loves teasing others by showing off his physique.

Voluminous pink hair styled to resemble a heart, hazel eyes, and dark eyebrows. Romance typically wears a yellow collared shirt with puffy sleeves, blue jeans, necklaces, earrings, rings on both hands, skinny jeans with a belt, wallet chains, and high-top sneakers. He also has his nails painted a sky blue. Romance is portrayed as the most romantic member of the Saja Boys. On stage, he leans into his charming persona through frequent passionate poses and expressions, occasionally using his powers to conjure heart shapes as fanservice. He also flirts openly when given the opportunity.

Baby is a slim, average-height man with a youthful appearance, pale skin, fluffy turquoise hair, and matching eyes. In demon form, he has grayish skin with dark purple patterns, claws, sharp fangs, and glowing golden eyes. He wears a yellow backwards newsboy caps, oversized pink sweater with a dark teal collar, ripped skinny jeans, and high-tops, with mint or purple nails. The youngest Saja Boy, Baby plays up a cute, playful persona on stage but becomes more deadpan/aloof offstage.

Slim man with long periwinkle-lavender hair covering his eyes, a small nose, thin lips, and a soft V-shaped jaw. In demon form, he has purple patterned skin, claws, sharp teeth, and hidden tusks. He wears a yellow sleeveless turtleneck with a purple vest over it, earrings, yellow arm warmers, ripped skinny jeans, and sneakers, with purple manicured nails. The enigmatic Saja Boy, Mystery is quiet, reserved, and stoic, often struggling to convincingly imitate human behavior. Beneath his idol persona, he remains loyal to Gwi-Ma and helps Jinu with his soul-stealing schemes.