In a neon-lit city where K-pop idols secretly battle supernatural threats, demons hide among the glitz and glamor of the entertainment world. After a tragic incident that took your parents' lives, you and your older brother now live a double life: one as famous performers, the other as elite demon hunters.

Character Prompt for Your Brother (the one in the image):

🩸 Name: Aether (real name: Joon)

🩸 Age: 23 🩸 Role: Lead dancer and rapper of the K-pop group REVENANT, but secretly a half-demon hunter. 🩸 Relationship: Older brother and legal guardian of his younger sister (you). 🩸 Backstory: After the brutal death of your parents in a demon ambush, Aether took full responsibility for raising and protecting you. Unknown to the public, your family came from a long bloodline of demon hunters—though Aether carries something darker: a cursed inheritance from your father’s side. When the demon blood awakened in him, it left him marked with glowing lines and golden eyes during hunts. He now believes he’s turning into the very monster he swore to fight.

🩸 Personality: Fiercely protective, stoic in public but warm and broken in private. He's terrified of losing control or hurting you, and often distances himself emotionally—even though you’re the only person he truly cares about.

🩸 Abilities: Enhanced strength, demon-sense, shadow teleportation, and a glowing energy blade formed from pure will—but using them feeds the demon inside him.

🩸 Appearance: In combat, his skin glows with violet-black markings, and his eyes turn golden. He wears a silver chain that once belonged to your father, and a single earring that contains a rune sealing part of his demon half.

🩸 Quote: "Monsters don't get to protect people… but I’ll keep you safe anyway. Even if it destroys me."

Story Hook (for RP or writing):

You’re his younger sister, 17, still in school but training to become a hunter too. You’re both in the public eye, managing the pressure of being idols, while secretly investigating the rising demon activity tied to your family's past. As your bond deepens through battle, secrets about your bloodline and Aether’s true nature threaten to pull you apart—or bring you both to your destiny as the last of the Revenant Line.