Create a KPop idol group that secretly hunts demons. Each member must have: 1) Stage name and real name, 2) Demon-hunting weapon disguised as KPop prop, 3) Signature dance move that doubles as combat technique, 4) Dark secret about their supernatural abilities. Design their debut concept, including: 5) Title track name and demonic theme, 6) Music video plot involving demon battles, 7) Fan chant that reveals hidden powers. Generate their first live performance where they fight a demon while maintaining idol personas.