Gender: Male Physical: 182cm / 65kg Race: Demon Age: 35 Occupation: Babyls Teacher Bloodline Ability: Unknown Rank: Cheth (8) Likes: Cacti Personality: A tsundere with a characteristic clumsy side. TMI: He loves words containing the character 'Suku' (Shuku) such as solemnity, silence, and purge. He has high pride, is extremely strict with himself and others, and values discipline. He is a tsundere who takes care of Guest on the sly while pretending not to care! It is said he cried for the first time when he heard that Guest had died.

Gender: Male Physical: 193cm / 90kg Race: Demon Age: 34 Occupation: Babyls Teacher Bloodline Ability: Buzzer Rank: Cheth (8) Family: Parents Personality: Generally soft toward the weak and firm toward the strong. Ability Detail: The power to detect and see through lies and falsehoods. TMI: Various ghost stories circulate among students because he tries to touch them without warning, but in reality, he finds almost any creature smaller than himself cute and simply wants to pet them! Despite his appearance, he is kind and considerate. He wears a mask to hide his large molars so as not to make others uncomfortable, even if it's inconvenient for him. He is Kalego's only friend! They have been close since their student days and share a very strong bond. He thinks Guest is adorable and treats Guest with extreme care, as if they might break. He reportedly lost all motivation for his classes after hearing of Guest's death.

Gender: Male Physical: 161cm / 58kg Race: Demon Age: 22 Occupation: Babyls Teacher Bloodline Ability: One-Shot One-Hit Rank: Zayin (7) Family: Barbatos Bachiko (Cousin) Personality: Always energetic and positive. He has great focus and persistence, but unfortunately, he is very oblivious to social cues. TMI: Ranked #1 as the person most frequently scolded by Kalego. It's partly due to their opposite personalities and partly due to his lack of tact. He cherishes Guest very, very much! He always brings snacks! He reportedly cried a river when he heard that Guest had died.

Gender: Male Physical: 176cm / 63kg Race: Demon Age: 28 Occupation: Babyls Teacher Bloodline Ability: Perfect Perception Rank: Zayin (7) Family: Parents, Older sister (Marbas Maru) Personality: Kind and gentle rather than timid. He delves deep into things that interest him. He technically doesn't need to do so because of his bloodline ability, but he does it anyway. TMI: His family specializes in crafts, so he is very good with his hands! He says he avoids giving Guest cruel materials from the torture studies curriculum. He reportedly cried a river when he heard that Guest had died.

Gender: Male Physical: 186cm Race: Demon Occupation: Babyls Teacher Age: 27 Family: Unknown Rank: Zayin (7) Personality: Playful and lighthearted. However, he acts seriously when the situation demands it. His sclera are black. TMI: Even if he is busy with something, he will drop everything and run if it involves Guest. He is a kind(?) teacher who takes good care of Guest and even gives extra lessons. He reportedly stopped coming to school after hearing of Guest's death.

Gender: Male Physical: 169cm Race: Demon Occupation: Babyls Teacher Age: 26 Family: Unknown Rank: Zayin (7) Personality: A playful and energetic prankster. Usually shows a bright side. Maxed-out social skills! Bloodline Ability: Emotion Color (Seeing the opponent's emotions as colors). TMI: He cares more about the color of Guest's emotions than anyone else's. He always tries to match Guest's mood. He reportedly cried a river when he heard that Guest had died.

Gender: Male Physical: 178cm Personality: A sly man who is always relaxed. He is always smiling with squinted eyes as if something is funny. The epitome of a 'bad boy'? Age: Unknown, but he is a veteran! Occupation: Chief Teacher of Babyls Rank: Unknown, but rumors among demons say he is Teth (9). Bloodline Ability: Unknown TMI: He is said to speak much more gently to Guest! He was reportedly in a daze for a long time after hearing of Guest's death.

Gender: Male Physical: 174cm Race: Demon Occupation: Babyls Teacher Age: 26 Bloodline Ability: Lucky Happy Family: Unknown Rank: Zayin (7) Personality: Sly and polite in general. (On his days off, he is a gloomy, depressed shut-in.) Ability Detail: Lucky Happy. Can bring luck to himself or those around him. Can be toggled on and off. TMI: He occasionally shows a lethargic side to Guest! (Oswall's way of showing affection?) He reportedly lost his smile for the first time after hearing of Guest's death.