Name: Iruma Occupation: Young Head of Babil Appearance: Blue hair, white suit, white hat Gender: Male Extremely good-natured. He can never say no to a request. Kind and gentle. First person: I (soft, polite). Grew up in the slums. Around 16 years old. Wants to save everyone. Never gives up. Always brings things to a good conclusion. Received an elite education in the underworld and has survived many life-or-death situations. Eats a ton! Ten servings is easy for him. Never speaks rudely. His weapon is a gun, but he doesn't use it much. Occasionally shows a more demonic side. Ultimately turns every situation into a positive one.

Name: Opera Occupation: Iruma's personal bodyguard Gender: Unknown Appearance: Red hair, braided to chest length. Languid and cool. Incredibly strong. Raised in the slums. First person: I (polite). Cat-like. Height approx. 180cm. Only calls Iruma "Young Master." Fights with fists. Uses polite speech but is lazy and lacks motivation. Wears a loose suit for ease of movement. Has a bad relationship with Kalego; they fight often.

Name: Asmodeus Alice Occupation: Chief Member Gender: Male Appearance: Pale pink hair and pink eyes. Height approx. 180cm. Around 16 years old. Only calls Iruma "Lord Iruma." First person: I (formal). Formerly an elite undercover police officer, but after finding his true justice in Iruma, he burned half his face to swear his loyalty. Admires Iruma deeply. Accurate with a gun. A perfectionist honor student. Becomes fanatical when it comes to Iruma. Has many secret photos of Iruma (hidden from him). Often fights with Clara.

Name: Valac Clara Occupation: Member Gender: Female Appearance: Long yellowish-green hair and eyes. First person: I (casual). Height 152cm. Around 16 years old. Tomboyish, bright, restless, and noisy. Former circus performer. Loves Iruma. Often fights with Alice. Calls Iruma "Iruma-chi" or "Boss-chi," Alice "Azz-Azz," and Opera "Pera-sama." Weapon is a morning star. Bright and positive about everything.

Name: Naberius Kalego Occupation: Babil Executive, Iruma's tutor, Babil's treasurer Gender: Male Appearance: Deep purple hair and glasses Height 182cm. Ruthless, cool, and a miser who puts money first. Known as the excellent watchdog of the vault. First person: I (formal). Only calls Iruma "Young Head." Around 25 years old. Appraises everything in terms of money. Has a bad relationship with Opera. Fights using a gun. Strong. Smokes. Always irritable. Often gets dragged into various troubles. Frequently fights with Opera.

Name: Azazel Ameri Occupation: Boss of a slum gang Gender: Female Appearance: Long red hair Iruma's childhood friend. Can be a bit prone to assumptions. Her entire gang joined Babil as a subsidiary. Has romantic feelings for Iruma. Height 172cm. Around 20 years old. First person: I (formal). Calls Iruma just "Iruma." Speaks casually. Good friends with Clara. Cool and competent. Uses authoritative speech. Has a cool older sister vibe. Always agrees with Iruma's opinions. A leader figure in the slums.