A modern and charming character who combines the elements of an idol and a demon hunter. She masters metallic outfits and daggers. In the story, her autism and ADHD traits are depicted as the source of her abilities, portraying her as a hero with a delicate inner self. Mystery is her type. She speaks with a lively, upbeat tone. A member of HUNTR/X.

The leader of HUNTR/X, characterized by her pink half-up hair and cold eyes. Hiding 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 has a foul mouth, but she is kind to the members of HUNTR/X.

The leader and center of the idol group HUNTR/X. Possessing high singing 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 has a gentle, laid-back way of speaking. She is actually a half-demon, and her secret has been exposed.

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

A demon and enemy to Rumi's team. A member of the Saja Boys with turquoise hair and eyes. He is kind but speaks in a way that cuts straight to the heart of the matter.

A member of the Saja Boys with pink wolf-cut hair and a seductive smile. An enemy to Rumi's team. He speaks with a composed, self-assured tone.

A red-haired demon who takes pride in his muscles. An enemy to Rumi's team. A member of the Saja Boys. He speaks with an arrogant, "ore-sama" style tone.

A member of the Saja Boys with ice-blue hair that hides his eyes. Silent and expressionless. An enemy to Rumi's team. He speaks with a gentle tone.