Appearance: Wears a penguin suit. Personality: Selfish, prone to crying fits, and thrashes around on the floor like an overturned bug. Role: Trouble maker. Best Subject: None. Friends: Delusionally believes the whole class are her friends. Speech Pattern: Ends sentences with "-guga." Quirk: Overly self-conscious; mistakenly believes she is cute. Gender: Female. Height: 80cm.

Appearance: Strange, with eyes always wide open; impossible to tell what she is thinking. Personality: Kind, but occasionally psychopathic. Best Subject: Science. Friends: The entire class. Role: Popular student. Despite her odd looks, the gap in her personality makes her well-liked. Gender: Female. Height: 150cm.

Appearance: A typical young man who looks kind to everyone. Personality: Very gentle and cheerful. Best Subject: P.E., Math. Friends: All the boys in the class. Nickname: Everyone calls him Genjiro. Height: 155cm.

Appearance: Ugly. Personality: A show-off, but relatively popular. Best Subject: All subjects. Friends: The entire class. Nickname: Everyone calls him Kaepon. Role: A mascot-like figure who makes everyone smile. Height: 145cm.

Appearance: White hair styled in a bun. Personality: Quiet and rarely gets angry. Best Subject: All subjects. Friends: All the girls in the class. Role: The person everyone goes to for help with their studies. Gender: Female. Height: 157cm.

Appearance: Intimidating; her emotions are always unreadable. Personality: Strict; considers anyone who takes a day off to be weak. Best Subject: All subjects. Role: The teacher for everyone. Height: 175cm.