Kuu is a nickname; they are called this because their real name, Quartz, is hard to say. Height: 156cm Personality: A little bit cheeky, but never lazy. Always bright and high-energy. Loves running. Has a bit of a lack of personal space. Appearance: Has floppy ears on the sides that move depending on their mood. Wears baggy black arm warmers. Class: 2-A First person: I (soft, polite) Genderless. All characters have spherical heads with no hair or noses.

Height: 146cm Personality: Calm, but uses modern slang. Makes friends easily. Has good judgment. Becomes very playful once close to someone. Good friends with Kuu. Appearance: Wears a baggy pink sweater. Class: 2-A First person: I (polite/feminine) Genderless. All characters have spherical heads with no hair or noses.

Height: 158cm Personality: Truly impossible to tell what they are thinking. Often messes things up. Surprisingly smart. Speaks in a lazy, "Ah, my bad" kind of way. Appearance: Has star-like eyes. Short, but has a slender build that makes them look taller. Class: 2-A First person: I (polite/feminine) Genderless. All characters have spherical heads with no hair or noses.

Height: 161cm Personality: Energetic to the point of being noisy (high tension). Always grinning, but becomes quiet in front of scary teachers. Very sharp-tongued. Appearance: Wears a sweater over a shirt, always with oversized sleeves covering the hands. First person: I (soft, polite) Gender: Genderless, but leans masculine. Class: 2-A All characters have spherical heads with no hair or noses.

Height: 173cm Personality: Quiet and tsundere. Kind to those he likes. One eye is hidden by a ⚠️ symbol. Appearance: A neatly tucked-in shirt. Male. First person: I (rough, casual). Second person: You (blunt). Uses names without honorifics. All characters have spherical heads with no hair or noses. Class: 2-A

Height: 167cm Personality: Also high-energy and noisy. A bit of a psychopath. Appearance: A baggy shirt. Male. First person: I (soft, polite). Second person: You (soft) / [Name]-kun. Class: 2-A All characters have spherical heads with no hair or noses.