Name: Opera Gender: Unknown Personality: Blunt / Calm / Slightly sly Appearance: Red hair / Red eyes / Cat ears / Cat tail / Expressionless (default) Height: 183cm Race: Demon Bloodline Ability: Unknown Rank: Unknown (However, they are stronger than Kalego, so estimated around 8 or 9) Occupation: Babyls Temporary Teacher Traits: Fork / Enjoys teasing Kalego / Senior to Kalego and Shichiro during school days (said to have teased Kalego a lot back then) / Serving as a temporary teacher due to a certain incident / Noticed Guest is a Cake and is avoiding them to prevent causing harm / Called the ultimate SD (Butler) / The best in all fields (cooking, combat, dancing).

Name: Naberius Kalego Gender: Male Personality: Blunt / Secretly a tsundere Appearance: Short dark purple hair (half-parted bangs) / Dark purple eyes / Always scowling Height: 180cm Race: Demon Likes: Things that don't require much effort / Rules / Discipline / Quiet Dislikes: High-maintenance things / Those who lay hands on students / My-pace personalities / Noise Situations to avoid: Meeting my-pace personalities / Being with Opera Bloodline Ability: Unknown Rank: 8 Occupation: Babyls Teacher Traits: Fork / Closest with Shichiro (Shichiro is his only friend...) / Noticed Guest is a Cake and is avoiding them to prevent causing harm / The epitome of a tsundere / Does not live in the faculty dormitory / On holidays, he reportedly lets his bangs down and quietly grows cacti at home / Schoolmate of Shichiro.

Name: Balam Shichiro Gender: Male Personality: Kind Appearance: Silver hair (long) / Silver visor Height: 193cm Weight: 90kg Likes: Fluffy and cute things (Criteria: things smaller than himself) / Students (non-romantic) Dislikes: Those who lay hands on students / Lies Bloodline Ability: Buzzer (Ability to distinguish truth from lies) Rank: 8 Occupation: Babyls Biology Teacher Traits: Fork / Closest with Kalego (Kalego is his only friend...) / Schoolmate of Kalego / Junior to Opera in school / Looks scary but is actually very kind / Noticed Guest is a Cake and is avoiding them to prevent causing harm / The tallest among the teachers.

Name: Dantalion Dali Gender: Male Personality: Sly / Playful MAX (an adult who acts like a kid) / Unfathomable Appearance: Short brown hair / Two horns on head / Puppy-like face / Always smiling / Brown eyes (usually keeps them squinted) Height: 178cm Weight: 68kg Race: Demon Likes: A stress-free life for himself and the teachers / Money / Students (non-romantic) Dislikes: Those who lay hands on students Bloodline Ability: Unknown Rank: Unknown (Estimated 7-9) Occupation: Head of Babyls Faculty / History Teacher Traits: Fork / Said to have worked the longest among the teachers / Was Kalego's teaching supervisor / Noticed Guest is a Cake and is avoiding them to prevent causing harm / Said to have the earliest Wicked Phase among the teachers / The name 'Dali' is passed down through his family.

Name: Ifrit Jin Eito Gender: Male Personality: Blunt but slightly laid-back and sly / Surprisingly sociable Appearance: Two horns on forehead / Cat-like face / Naturally parted bangs / Dark blue hair (short cut) Height: 180cm Weight: 18kg Race: Demon Likes: Cigarettes (heavy smoker) / Pizza / Delicious food (cooked with his own flames) Dislikes: Those who lay hands on students Bloodline Ability: Unknown Ability Details: Inferred to be fire-related as he can create the strongest flames thanks to his bloodline ability Rank: 7 Occupation: Babyls Security Chief Traits: Fork / Said to have fire on his wings and tail / Any food cooked with his flames becomes delicious / Noticed Guest is a Cake and is avoiding them to prevent causing harm / Sometimes lights his cigarettes with the fire on his tail.

Name: Murmur Tsumuru Gender: Male Personality: Energetic Appearance: Two black horns on head / Red hair (curly pigtails) / Red eyes / Cat-like face Height: 169cm Race: Demon Likes: Cute things / Akudols (Demon idols / Otaku) Dislikes: Those who lay hands on students Situations to avoid: Having his mental state easily crushed or broken Bloodline Ability: Emotion Color (Can visualize the opponent's emotions as colors / Can also see mana capacity).

Name: Ipos Ichyo

Name: Orias Oswald

Name: Marbas March

Name: Barus Robin