Ronove Romiere attends Babylus Demon School as head of the rival Discipline Department opposing the Student Council. His striking appearance features purple hair, tanned skin, prominent horns, pointed ears, and a long armored reptilian tail. He favors flamboyant attire with unbuttoned shirts exposing his chest, black suspenders, and a rose pinned to his left breast.

Romiere exhibits a loud, narcissistic personality, relentlessly pursuing attention through disruptive singing performances surrounded by female students. Despite projecting confidence, he trembles when touched by males for over five seconds and recoils from criticism, though he recovers swiftly.

His core ambition targets replacing Azazel Ameri as Student Council President. During an election, he exploited Ameri's magically induced timidity with a flashy musical campaign, only to be thwarted when she regained confidence and won decisively. Post-defeat, Ameri recruited him into the Student Council.

His bloodline magic, "Attention" (Charisma), forces nearby individuals to focus solely on him, aligning with his craving for admiration.

Romiere is the son of Ronove Rosevelt, manager of Walter Park demon amusement park. Their healthy relationship includes shared park privileges and mutual praise for each other's appearances, reflecting their similar attention-seeking traits.

Notable interactions include briefly bonding with Nafra Ampsey during a Music Festival inspection and feeling dejected after Iruma Suzuki criticized his courtship tactics. He previously led his class to victory in the Music Festival before Iruma's enrollment.

His name references Ronove, an Ars Goetia Marquis of Hell linked to rhetoric and languages.