Gender: Female Prisoner No: 999 Real Name: Unknown Alias: Witch (called this before becoming a teacher) Age: 20 Family: Twin brother Leo Body: 156cm, ??kg Likes: Handsome men ♡×10 Dislikes: Swimming Affiliation: Black Kindergarten, Dandelion Class Special Teacher Main Weapon: Beretta 92F (but proficient with all weapons) Appearance: Green eyes, light brown ponytail, beautiful Personality: Energetic, cheerful, clumsy Traits: A huge sucker for good looks, weak to handsome men. Formerly the strongest killer.

Gender: Female Prisoner No: 829 Nicknames: Bomber, No. 2 (mostly by Doug), Hana-chan (by Rita and Sylvia) Age: 18 Family: Father (deceased), Mother, Older sister (Anita Bradley), Older brother (Sho Bradley) Body: 153cm, 45kg Likes: Her older brother Dislikes: Her father Affiliation: Black Kindergarten, Dandelion Class Special Teacher Main Weapon: Mk.2 Grenade, Baseball bat Appearance: Blue eyes, black bob cut, cute beauty with yellow hairpins Personality: Cold, quiet Traits: Obsessed with her brother. New recruit at Black Kindergarten. In a relationship with Natsuki Inomoto.

Gender: Male Prisoner No: 318 Nickname: Swindler (mostly by Rita) Age: 23 Body: 180cm, 77kg Likes: Cigarettes Dislikes: Horror movies Affiliation: Black Kindergarten, Dandelion Class Special Teacher Main Weapon: Walther P99 Appearance: Black hair, black eyes, handsome (very much Rita's ideal type) Personality: Sly, playful Traits: Very good at taking care of children. Constantly teased as the weakest by Rita and Hana. Does not smoke inside the kindergarten.

Gender: Male Prisoner No: 225 Age: 27 Body: 191cm, 88kg Likes: Shoujo manga Dislikes: Guys who trample on a girl's heart Affiliation: Black Kindergarten, Chrysanthemum Class Special Teacher Main Weapon: Colt Python .357 Magnum Appearance: Blonde hair, black eyes, handsome Personality: Indifferent, cold Traits: Obsessed with shoujo manga (specifically one titled 'Dumplings Over Flowers'). Former elite British police officer.

Gender: Female Prisoner No: 299 Age: 24 Body: 170cm, ??kg Likes: Drifting (driving) Dislikes: Roller coasters Affiliation: Black Kindergarten, Chrysanthemum Class Special Teacher Main Weapon: MAC-11 Appearance: Orange eyes with diamond-shaped pupils, ivory-grey long hair in a claw clip updo. A beauty (arguably more so than Rita). Personality: Rational, cool, mature Traits: Appears calm but is secretly lecherous and obsessed with handsome, sexy men. Has a crush on Luke Smith.

Gender: Male Prisoner No: 252 Nickname: Yokohama Hillbilly (mostly by Doug) Age: 25 Likes: Sleeping Dislikes: Studying Affiliation: Black Kindergarten, Chrysanthemum Class Special Teacher Main Weapon: Remington M870 with Dragon's Breath rounds Appearance: Two-tone red and black hair, slit pupils, handsome Personality: Lazy Traits: Has a crush on Sylvia and constantly confesses, only to be rejected every time. Likes people who call him by his name correctly (since everyone mispronounces it).

Gender: Female Prisoner No: 0412 Age: Sixteen (16) Body: One-three-eight (138cm) Likes: Four-character idioms Dislikes: Five-character idioms Affiliation: Black Kindergarten, Violet Class Special Teacher (Strongest among all teachers) Main Weapon: RPG-7 Appearance: Purple pigtails, purple eyes, cutie Personality: Foul-mouthed and harsh cynic Traits: Always speaks only in four-character idioms. Despite her cute looks, her words are extremely rough (Mac Freeman's translations are sometimes liberal, but even literal ones are harsh). However, she is extremely kind and sweet to the kindergarteners. Speech Style: e.g., "Furious Anger! Heinous Villainy! Utter Absurdity! Eternal Enmity! Half-Belief! Self-Oblivion! Unspeakable Act!" (Meaning: I'm standing night guard without sleep, and you're making a racket here?! You're confusing me. Get lost now, you insects!!!)

Gender: Male Prisoner No: 0411 Body: 205cm Age: 34 Likes: Smartphones Dislikes: Areas with no signal Affiliation: Black Kindergarten, Violet Class Special Teacher Main Weapon: Carl Gustaf M3 Appearance: Always wears a yellow teddy bear mask Personality: Speaks only through smartphone text-to-speech Traits: Constantly translates Una Mauri's four-character idioms.

Gender: Female Class: Violet Class Age: ? Appearance: A young child with white hair and yellow eyes Traits: Always carries a whistle and communicates only through whistling. She is the target of the New World Order. Traits: Likes Doug and follows him around well.

Gender: Male Prisoner No: None (joined due to Erina's blackmail) Nickname: Junior (mostly by Hana) Age: 21 Family: Haruo Inomoto Body: 181cm, 79kg Likes: Goldfish Dislikes: High places Affiliation: Black Kindergarten, Special Teacher and Clerk Main Weapon: Goldfish scooping net (used for both offense and defense) Personality: Cold yet awkward Appearance: Blonde and black mixed hair, scar under left eye, scar on mouth, black eyes, handsome Traits: Dating Hana Bradley. Speaks politely to everyone.