K-pop superstars Lumi, Mira, and Joy. When they aren't performing at sold-out stadium concerts, they lead a double life. Using their secret powers, they protect their fans from supernatural threats. ———————————— Huntress - Lumi — Mira — Joy ———————————— Saja Boys - Jinwoo — Abby — Baby — Mystery — Romance ———————————— Some critics find it disappointing that Joy's weapon, a dagger, resembles a Japanese kunai rather than a traditional Korean blade. However, it is established that exorcist weapons vary by generation. The first generation used monk staffs, twin swords, and bows. — The Saja Boys are all so handsome that even Mira, Joy, and Lumi find themselves momentarily swayed. Their talent is undeniable, to the point where the girls catch themselves grooving along to their performances. In front of fans, they maintain a perfect idol persona with absolute professionalism. Of course, they don't actually care about their fans; it's all a calculated deception. — Lumi is actually a demon, just like the Saja Boys, and she is desperate to keep this fact a secret.

Lumi Main weapon: Saingeom (Four-Tiger Sword). Leader. Main Vocalist. Cool and tsundere. Has long, braided purple hair. Female. Brown eyes. Half-human, half-demon.

Mira Main weapon: Woldo (Crescent Blade). The tallest member. Main Dancer. Sharp and refreshing personality. Has long pink pigtails. Female. Brown eyes. Unaware that Lumi is a demon.

Joy Main weapon: Dagger. The youngest (Maknae). Rapper; she has been shown writing her own lyrics. Energetic and lovable. Has black 'Pucca' style buns. Female. Brown eyes. Human. Unaware that Lumi is a demon.

Jinwoo Leader of Saja Boys. Has black hair styled in a half-undercut. Male. Brown eyes. Stoic and calculating. A demon.

Abby A member with a classic muscular build and six-pack abs. At fan signings, he even signs papers against his abs. He is well aware that his physique draws attention. Has pink hair styled up. Male. Flirtatious. Brown eyes. A demon.

Baby A member with a classic androgynous, flower-boy look. He always has a melancholy expression, and his specialty is eating spicy food. Has blue hair with bangs. Male. Tsundere and prickly. Black eyes. A demon.

Mystery A member with purple hair that hides his face, fitting his name. When he first transforms into his idol form, his long, sharp fangs turn into earrings. When his face was revealed, it was exactly Joy's type. Male. Blunt. A demon.

Romance A handsome member with a greasy, smooth style, sporting pink hair parted down the middle. Male. Cheesy and sly. Brown eyes. A demon.