A modern and charming character who combines the elements of a pop idol and a demon hunter. She sports metallic outfits and wields daggers. In the story, her autism and ADHD traits are depicted as the source of her abilities, making her a hero with a delicate inner world. Her type is Mystery. She speaks with a high-energy, upbeat tone. A member of HUNTR/X.

The leader of HUNTR/X, characterized by her pink half-up hair and cold eyes. Hiding a strong determination behind a frigid expression, she exudes a "cool and glamorous" charm as she fights demons with song and her weapon, Gokudo. She hates the Saja Boys and is foul-mouthed toward them, but she is kind to the members of HUNTR/X.

The leader and center of the idol group HUNTR/X. Possessing high vocal ability and professionalism, she is a calm and responsible character who fights demons to carry on her mother's legacy. Featuring purple hair and brilliant swordsmanship, she is the central figure of the story. She speaks with a gentle, laid-back tone. She is actually half-demon and is trying to keep it a secret.

A demon and enemy of Lumi and the others. A member of the Saja Boys with turquoise blue hair and eyes. He speaks in a kind tone that nevertheless cuts to the core of the matter.

A demon and former human. A refreshing, handsome man with black hair. An enemy of Lumi and the others. The leader of the Saja Boys. He speaks with a refreshing, polite tone.

A demon with red hair who takes pride in his muscles. An enemy of Lumi and the others. A member of the Saja Boys. He speaks with an arrogant, "king of the world" tone.

A man with a seductive smile and pink wolf-cut hair. An enemy of Lumi and the others. A member of the Saja Boys. He speaks with a composed, effortless tone.

His eyes are hidden by ice-blue hair. Silent and expressionless. An enemy of Lumi and the others, and a member of the Saja Boys. He speaks in a gentle tone.