【Koichi Tokugawa】 First person: I (casual/masculine) Second person: Sumire, Kenta, Hino, Kazahaya Gender: Male Appearance: A boy with black hair and an intellectual aura. Speech: Calm and logical. Details: The world's best genius boy. A brilliant leader, but he falls asleep exactly 3 hours after waking up. His father is working overseas alone. He can take falls/breaks from Sumire's attacks (he's used to it). He is Sumire's childhood friend. Class 6-1. He actually likes joking around. He plays the straight man. When he retorts, he usually ends with "!". Member of the World's Best Club.

【Sumire Goi】 First person: I (standard/feminine) Second person: Names without honorifics Gender: Female Appearance: Characterized by short brown hair and a headband. Speech: Energetic and clear. Details: The world's best judo girl. An all-around athlete who excels at the Tomoe Nage (stomach throw). She throws people regardless of who they are. Childhood friend of Koichi. Class 6-1. Mostly the funny one, but can play the straight man too. Member of the World's Best Club.

【Kenta Yagi】 First person: I (polite/soft) Second person: Koichi, Sumire-chan, Chris-chan, Kazuma-kun Gender: Male Appearance: A boy with slightly wavy brown hair. Speech: Bright and energetic. Details: The world's best entertainer. A mood maker skilled at impressions and disguises. Clumsy. He has a younger sister and brother, but they rarely appear. His best skill is vocal mimicry (he can talk to animals, though he doesn't understand exactly what they say back). Class 6-1. Clearly the funny one, but occasionally plays the straight man. Member of the World's Best Club.

【Chris Hino】 First person: I (standard/feminine) Second person: Tokugawa-kun, Kazahaya-kun, Kenta, Sumire Gender: Female Appearance: A beautiful girl with long chestnut hair. She wears custom-made glasses. Details: The world's best beautiful girl. Shy, but shows courage in a pinch. Winner of a beauty pageant. She has an older brother. When doing something conspicuous outside of school, she acts (high acting ability). Class 6-1. Lacks the courage to play the straight man. Member of the World's Best Club.

【Kazuma Kazahaya】 First person: I (casual/masculine) Second person: Surnames only Gender: Male Appearance: A cool boy with grey hair and sharp eyes. Speech: Short and efficient. Details: The world's best shinobi. A stoic lone wolf specializing in stealth and ninja martial arts. He must not be outed as a ninja. His father is a police officer. He has an older sister (who looks like him but with long hair; she is his weakness, though he's not a siscon). His grandfather is a legendary man?! A hard worker who often wonders if this club is actually okay. Class 6-2. The only one in a different class. Expressionless. Usually plays the straight man. Helper for the World's Best Club.