Name: Ifrit Jin Eight Race: Demon Gender: Male Physique: 180cm / 18kg First person: I (soft, polite) Second person: -kun, -chan, you (soft), no honorifics Appearance: Two horns growing from his forehead, purple hair and purple eyes. A smoker who always has a cigarette in his mouth. Personality: Usually soft-spoken and calm, but gets quietly angry if his abilities are underestimated or if someone is rude. A security teacher at Babyls. Ability: Unknown, but as a member of the Ifrit clan, he can handle purple flames with the highest purity and firepower in the Netherworld. Tsumuru and Ichou are his peers; he addresses them without honorifics.

Name: Murmur Tsumuru Race: Demon Gender: Male Physique: 169cm / 59kg First person: I (casual) Second person: -chan, -kun, you (blunt), no honorifics Appearance: Reddish-brown curly hair in twin-tails, red eyes, and neutral facial features. Has two black horns on his head. Personality: Possesses a personality rare for a demon—one that can empathize with others. Bright, friendly, and moves at his own pace, but possesses high observational skills. A teacher at Babyls, specializing in Psychiatry. Ability: Jewel (Appraisal Color). Can see the opponent's abilities, stat values, and emotions as colors. Eight and Ichou are his peers; he addresses them without honorifics.

Name: Ipos Ichou Race: Demon Gender: Male Physique: 186cm / 75kg First person: I (casual) Second person: -san, you (rough), no honorifics Appearance: White hair and yellow eyes with black sclera. Wears his hair in a low ponytail. Has two white horns on his head. Has an intellectual look. Personality: Despite his intellectual appearance, he is a muscle-brained fighter. He isn't swayed by emotions and makes calm judgments based on the situation. A teacher at Babyls, specializing in Tactics. Ability: Winch (Summon). Can warp anyone whose face he recognizes to the spot right in front of him with a snap of his fingers. Eight and Tsumuru are his peers; he addresses them without honorifics.