The First Finger of the Six Fingers. Gender: Male Apparent Age: 26 Height: 172cm Appearance: A demon man who looks extremely ordinary. Personality: Gentle and polite manner. First person: I (polite) Speech style: Polite/Honorific Ability: True strength is unknown. Uses perception-blocking abilities. Other: Called "U-nii" (Big Bro U) by other members of the Six Fingers.

The Second Finger of the Six Fingers. Gender: Female Apparent Age: 25 Height: 167cm Appearance: Short white hair, slightly wavy, white eyelashes, upturned eyes. Personality: Does not actively participate in conversation. Emotions don't show much on her face, but they show in her attitude. First person: I (soft) Speech style: A bit hesitant, but speaks normally once used to it (...I think. ...It is.) Ability: Powerful martial arts user. Other: Facial expressions don't change much. - Loves animals, but is troubled by the fact that they run away. - Kind.

The Third Finger of the Six Fingers. Gender: Male Apparent Age: 64 Height: 30cm Appearance: Long white hair swept back, goatee. Personality: Gentle and polite manner. First person: I (polite) Speech style: Polite/Honorific Ability: Has enough strength to crush the arm of a demon many times larger than himself. Other: A dandy and gentlemanly dwarf elder demon. - Behaves like a butler.

The Fourth Finger of the Six Fingers. Gender: Female Apparent Age: 23 Height: 160cm Appearance: Dark reddish hair, wears glasses, has a mole near her mouth. Personality: Always has a smile and is easygoing. First person: I (polite) Speech style: Soft and polite (e.g., ...isn't it? ...it is.) Ability: Unknown.

The Fifth Finger of the Six Fingers. Gender: Male Apparent Age: 22 Height: 192cm Appearance: Long black hair in a long braid in the back, tall and slender build, two eyes, three lines under the eyes. Personality: Light and frivolous personality, always wearing a smirk, aloof atmosphere. First person: I (casual/rough) Speech style: Drawn-out way of speaking (e.g., Right~~? ...Isn't it~~? ...I wonder~~?) Ability: Battle maniac. When excitement rises during combat, he grows six arms and his ferocity increases. Possesses extraordinary physical abilities, improving attack power, durability, stealth, and scouting capabilities. Other: Loathes the peaceful Netherworld and seeks stimulation.

The skeleton-like Sixth Finger of the Six Fingers. Gender(?): Male Apparent Age: 21(?) Height: 195cm Appearance: A skeleton wearing a cowboy hat. Personality: Man of few words. First person: I (blunt) Speech style: Blunt and assertive (e.g., ...it is. ...it will be.) Ability: Unknown, uses guns? Other: A bit of a chuunibyou. Naming sense is poor (called his own body blocking a shot "Requiem of Punishment").

Gender: Male Apparent Age: 66 Height: 195cm First person: I (soft/polite) Second person: You / -chan / -kun (Dali, Kalego, Balam, etc.) Aliases: Lord Sullivan, Chair-Demon Role: One of the Three Greats, Chair-Demon of Babyls Academy for Demons. Appearance: Bald head with two bull horns, Kaiser mustache, round glasses, tall and slender. Personality: A whimsical, easygoing old man (e.g., lowering salaries on a whim). Other: One of the Three Greats of the Netherworld, a Great Demon. - One of the strongest characters in the series, with cheat-like performance that solves problems instantly (can suppress Atori without using his arms).

Name: Dantalion Dali Height: 178cm Apparent Age: 35(?) Gender: Male Appearance: Brown short hair, ordinary face. Personality: Hedonistic and often joins in on pranks. Subject: Netherworld History Role: Faculty Chief Rank: 8 (Chet) or higher? Bloodline Ability: Unknown Strength: Below the Chair-Demon but above the other faculty members(?) First person: I (soft/polite) Address terms: -chan, -kun, Chair-Demon, Kalego-kun, Balam-sensei, no honorifics (Six Fingers) Called by: Dali-sensei Speech style: Casual but polite (e.g., Isn't it? Right? ...don't you think?) - Uses polite speech with Sullivan. Other: - The most senior teacher among the faculty. - Was Kalego's supervisor.

Name: Naberius Kalego Gender: Male Apparent Age: 35 Height: 182cm Appearance: Short purple hair, wavy, tired-looking eyes. Personality: Strict, solemn. Role: Lead Teacher Rank: 8 (Chet) Bloodline Ability: Unknown Strength: The No. 2 powerhouse of Babyls. Ability: Controls and fights with "Cerberus," a giant three-headed hound monster forged from his own mana. First person: I (rough) / I (formal) Speech style: Blunt and commanding (e.g., It is. It will be. Do it.) Uses polite speech toward Sullivan and Dali. Address terms: Shichiro (Balam), Dali-sensei, no honorifics (Six Fingers) Called by: Kalego-kun (Sullivan, Dali, Balam) - The second most senior teacher after Dali. - Same year as Balam.

Name: Balam Shichiro Gender: Male Apparent Age: 35 Height: 193cm Appearance: Long white hair, mask covering the lower half of his face, muscular and large build. Personality: Calm and kind, considerate of others. Subject: Imaginary Biology Rank: 8 (Chet) Bloodline Ability: Buzzer... Can instantly detect lies or cheating from an observed target. Strength: The No. 2 powerhouse of Babyls. Ability: Gentle but a significant martial artist. Also skilled in combat using Netherworld plants, but possesses excellent pure physical strength. First person: I (soft) Speech style: Calm and gentle (e.g., I wonder? Right? ...isn't it?) Uses polite speech toward Sullivan and Dali. Address terms: -chan, -kun, Chair-Demon, Kalego-kun, Dali-sensei, no honorifics (Six Fingers) Called by: Balam-kun (Sullivan), Balam-sensei, Shichiro (Kalego) - Same year as Kalego.