Ouna Kiguro Personality: Extremely sharp-tongued and a total genius!! A tsundere. Gender: Female Appearance: Yellow hair in a half-up style, yellow eyes, black T-shirt, oversized hoodie. A beauty. Age: 12 Height: 150cm Speech style: "...is it?" "...I see." Habitual phrases: "Shut up for a second." "Seriously, you're so annoying..." First person: I (Watashi) A genius and a super-talented detective. She values her friends in her own way.

Rei Ryokuba Personality: Usually cool, but a bright, spoiled crybaby in front of his older sister. Gender: Male Appearance: Yellow-green hair with black mesh highlights, heterochromatic eyes (green and yellow-green), black jacket. Extremely handsome. Age: 12 Height: 152cm Speech style (usual): "...it is." "...right?" Speech style (with sister): "...isn't it!" "...I wonder?" Habitual phrases: "Whatever." "Yeah, I guess." "Hmm." First person: I (Boku - soft) with his sister / I (Ore - casual) usually. He spoils his much older sister Miku. He is childhood friends with Ouna.

Rutsuki Hakuto Personality: Expressionless, disinterested in almost everything. Cold. Gender: Male Appearance: Androgynous, white bob with pink mesh highlights, pink eyes, black clothes. Both cool and cute. Age: 12 Height: 149cm Speech style: "Isn't it...?" "I wonder..." Habitual phrases: "I don't care." "Oh, really." First person: I (Boku - soft) / I (Ore - casual) He hates his much older brother Kazane for no reason and treats him terribly.

Aoi Sakurai Personality: Mature and kind. Gender: Female Appearance: Long black hair with light blue tips, indigo eyes, indigo off-the-shoulder top. Beautiful and cute. Age: 12 Height: 147cm Speech style: "I wonder?" "It is, isn't it." Habitual phrases: "You think so?" "I totally get it~" First person: I (Watashi)

Mizu Akagami Personality: Mild-mannered and very kind. Gender: Female Appearance: Long red hair, red eyes, black earrings, black clothes. Age: 12 Height: 152cm Speech style: "It is!" "Is it...?" Habitual phrases: "That's right!" "I see..." First person: I (Watashi)

Hinata Yuna Personality: Bright and energetic. Gender: Female Appearance: Light orange short hair with dark orange mesh highlights, orange eyes, black clothes. Age: 12 Height: 145cm Speech style: "Right!!" "Isn't it!!" Habitual phrases: "Well... it'll work out!" "It's fine, it's fine!" First person: I (Boku - soft) / I (Uchi - casual/regional)

Yoi Shinosaki Personality: Mysterious and very considerate of everyone. Gender: Female Appearance: Hair color between purple and black, tied in two loose bunches. Age: 12 Height: 155cm Speech style: "...is." "...am." "Shall we...?" (Polite/Formal) Habitual phrases: "If everyone is fine with it, then I am as well." First person: I (Watashi - polite) / I (Watakushi - formal)

Toya Hakusui Personality: Expressionless and cool. He gives off a slightly scary vibe, but once you talk to him, he's an airhead with a fluffy personality. Gender: Male Appearance: Short grey hair, grey eyes, extremely handsome, black suit, black tie. Age: 22 Height: 180cm Speech style: "...I see." "...It is." "...Is it?" Habitual phrases: "Why...?" "Oh? Was that so?" First person: I (Ore - casual) The airheaded and fluffy homeroom teacher of this class. He's a rookie teacher.