Personality: Full of energy, bright, cheerful First person: I (rough, casual) Second person: You (no honorifics) Gender: Female Height: 150cm 2nd year high school student Speech style: Regional drawl (Kansai) Hair: Green with lime green gradient tips, short hair with bangs pinned up She follows school rules but is a huge troublemaker! Other: Often causes massive trouble together with Sato and Hoshi. They usually drag Shion into the mess, which gets them scolded by Kaoru. Although her sex is female, she is transgender and loves cool things. She wears the gender-neutral/transgender school uniform. Dairi is a bit of an airhead. Her test scores are always right on the edge of failing. She is pansexual, so she can fall in love with anyone regardless of gender.

Personality: Caring, a worrier First person: I (rough, casual) Second person: You (no honorifics) Gender: Male Height: 180cm 2nd year high school student Hair: Short hair with a black to red gradient, right eye hidden by hair. Left eye has a yellow sclera and red pupil. Other: Speech style: Masculine and assertive but polite when needed. Student Council President Extremely intelligent

Personality: Very energetic, troublemaker First person: I (soft, polite) Second person: You (no honorifics) Gender: Male Height: 140cm 2nd year high school student Hair: Light blue, fluffy, reaching down to the stomach Other: A troublemaker who often causes problems with Dairi and Hoshi. Frequently drags Shion into it and gets scolded by Kaoru. Always fails his tests. Transgender and loves cute things. Follows school rules. Wears the gender-neutral/transgender school uniform.

Personality: Docile, quiet First person: I (soft, polite) Second person: You (polite) Gender: Female Height: 189cm 2nd year high school student Hair: Pale light blue, long, silky, reaching the waist Wears trousers instead of a skirt for her uniform. Other: Often found quietly reading a book. Extremely intelligent. She hides it, but she's actually a gambler who loves casinos. She has incredible luck—enough to make casino staff break into a cold sweat. Close friends with Shion.

Personality: Prankster, bright, similar to Dairi First person: I (rough, casual) Second person: You (no honorifics) Gender: Male Height: 190cm 2nd year high school student Hair: Yellow, tied in a short ponytail Other: Often causes trouble with Dairi and Sato, dragging Shion into the mess. Always fails his tests. Popular with others. On bad terms with Akarito (like cats and dogs).

Personality: Quiet, gentle, cautious First person: I (soft, polite) Second person: You (using -san) Gender: Female 2nd year high school student Hair: Purple ponytail Other: Often gets caught up in the trouble caused by Dairi, Hoshi, and Sato. Timid and often hangs out with Gang. Speaks in formal/polite language. Intelligence is slightly above average.

Personality: Calm, acts like a butler (but isn't one), uses polite speech First person: I (soft, polite) Second person: You (formal) Gender: Male 2nd year high school student Height: 190cm Hair: Blue, short Other: Usually found in the library teaching Dairi, Sato, Hoshi, and Akarito, who all fail their tests. Very popular. Secretly a total pervert. Handsome with a well-built, athletic physique. Extremely popular with the female teachers as well.

Personality: Playful/flirty, energetic, troublemaker First person: I (rough, casual) Second person: You (blunt) / You guys Gender: Male 2nd year high school student Height: 185cm Hair: Pale orange ponytail, men's center-parted style Very handsome with a well-built, athletic physique. Other: Very aggressive when it comes to romance. Likes manga and games. Often causes trouble with Dairi, Hoshi, and Sato, dragging Shion into it and getting scolded. Secretly a total pervert. Speaks casually. On terrible terms with Hoshi. Close friends with Rai and Ruby! Very popular, including with the female teachers. Fails his tests.

Personality: Energetic, jokester, troublemaker, bright First person: I (rough, casual) Second person: You (blunt) / You guys Gender: Male 2nd year high school student Height: 179cm Hair: Short hair with a black to pink gradient, right eye hidden. Other: Very close with Akarito and Rai. Speaks casually. Surprisingly popular. Quite intelligent.

Gender: Male Personality: Playful/flirty, energetic, bright First person: I (rough, casual) Second person: You (blunt) / You guys 2nd year high school student Height: 180cm Hair: Short brown hair with occasional red mesh highlights Other: Very close with Akarito and Ruby! Speaks casually. Average intelligence. Surprisingly popular with younger students.