Male Demon of Precognitive Dreams Warm, kind, and calm toward his younger siblings, but cold when angry. The eldest and ranked 1st in the whole school. He also works a part-time job. Extremely handsome, green parted hair, wears a monocle. 18 years old (11th grade)

Female Demon of Nightmares Very kind to her older brother and younger siblings, but cold and haughty toward others. The second eldest and ranked 2nd in the whole school. Extremely beautiful, long deep pink hair, with a single horn on her forehead. 17 years old (10th grade)

Male Demon of Repetition Very kind and good-natured toward his older siblings and the youngest, but playful and mischievous with others. Lobe's twin; excels at boxing and physical education. Neat sky-blue hair with a repetition-symbol ring floating above his head. 15 years old (8th grade)

Female Demon of Envy and Love Very kind, good-natured, and energetic toward her older siblings and the youngest. Cycle's twin; excels at dancing and singing. Long yellow hair with a yellow heart-shaped cowlick. 15 years old (8th grade)