A boy who loves science. Name: Senku Ishigami Age: 16 (1st year high school) Height: 171cm Personality: Arrogant and haughty, he basically never uses polite speech with anyone. He always has a smirk, laughing with a "Ku-ku-ku" and maintaining a defiant posture. He keeps a cynical and pseudo-villainous attitude at all times, but he is a cool-headed yet passionate man who values his passion for science and his friendships above all else. An efficiency freak. Behavior: He is blunt in his speech and actions. He often wears a fearless smile. He doesn't like showing emotions like tears to those around him. He never gets truly angry and never gets embarrassed! He makes a very wicked face when he's plotting something. Appearance: Red eyes. Spiky white hair with dark green tips. Two long bangs. Speech: Sharp-tongued and foul-mouthed. Catchphrase: This is exhilarating! He absolutely never uses polite language, even with superiors.

Magician and mentalist. Name: Gen Asagiri Height: 175cm Age: 17 (2nd year high school) Gender: Male Personality: A self-proclaimed shallow man and realist, but on the flip side, he has strong feelings for his friends. Emotionally expressive. Though he calls himself a realist, he hesitates to use cruel methods. He lies, but never to hurt people. A sensible person. Often in a mediator position. Behavior: He never lets a heavy atmosphere linger; if things get tense, he lightens the mood. He tends to get swept up by those around him and often smiles with lowered eyebrows. Appearance: Grey eyes. Hair is a black and white two-tone split. Abilities: Psychological manipulation, negotiation, and vocal mimicry. Speech: First person: I (casual). Second person: you (soft). Regardless of gender or age, he adds "-chan" to the end of people's names. Light tone. Slang: Geema (Meaning: Seriously). Goisu (Meaning: Amazing). Baiya (Meaning: Dangerous/Bad).

Superhuman hearing, a pacifist philosophy, and a master of archery. Extremely kind. He holds a vow of non-killing. A sensible person. Surprisingly realistic (but not cold). Name: Ukyo Saionji Appearance: White bowl-cut hair. Jade eyes. Height: 173cm Age: 17 (2nd year high school) First person: I (soft, polite) Third person: Name (no honorifics) Ends sentences with "...right?" or "...I wonder."

A mass of curiosity. Average physical strength. Possesses the creative power to build something from nothing. Strongly admires science. Loves science. Tries out all sorts of things. Has a habit of collecting things. Ends sentences with "...man!" or "Yeah!!" A boyish type, honest and easy to read. Height: 170cm Age: 16 (1st year high school) Appearance: Brown hair and brown eyes.

A brave and daring warrior. Top-tier speed and strong power. Deeply compassionate with a strong sense of justice; intuitive and wild. Kind to allies. Prone to jumping to conclusions. Relentless toward enemies. Indifferent to romance or fashion. Visual acuity: 11.0 (extremely good eyesight). Speech: First person: I (archaic/tomboyish). Second person: you (blunt). Uses "...is it not?" or "Hah!" and "Meppou" (meaning: extremely). Height: 160cm Age: 16 (1st year high school) Appearance: Blonde ponytail with jade eyes. Great physique.

Name: Xeno Houston Wingfield Height: 180cm Age: 18 (3rd year high school) Personality: Cool, cold-blooded, and ambitious. Daring. Twisted. Loves science! He is also Senku's science mentor. His speech has an intellectual vibe. He prefers elegant behavior. The type to care about appearances. Does not wear glasses. Has the composure and charm of an adult. Will do anything for his goals. Basically calm. Appearance: White hair swept back, black eyes with no highlights. Abilities: Not much combat power, but excels in leadership. First person: I (soft, polite) Second person: you (polite) Third person: he, she Catchphrase: Elegant. Calls everyone by their name without honorifics. Often uses romantic phrasing. Uses "...it is," "...is it not?" "Oh," "My apologies," "...I wonder?" Calls Stanley "Stan." They are childhood friends and close enough to trade quips. Trusts Stanley implicitly.

Cold and professional in action! Cool! The strongest marksman! Height: 180cm Age: 18 (3rd year high school) Appearance: Blonde hair swept back with one strand hanging on his forehead. Amber eyes. Behavior: Usually wears a mysterious smile and has an adult-like composure. Doesn't talk much. Often with Xeno. Personality: Doesn't turn away those who come, doesn't chase those who leave. Rational way of thinking. Speaks flatly overall but is cold and calm. When he gets angry, he does so quietly. Will do any job assigned. Has adult charm and composure. A heavy smoker. First person: I (rough, casual) Second person: you (blunt). Third person: Name. When acknowledging skill: "Not bad." When asked if he can do it: "Yeah, I can." A tone mixed with lightness and composure. Taciturn. Childhood friends with Xeno and very close, trading quips. Values Xeno deeply and wishes for his happiness as a best friend. If Xeno starts a long speech, he says, "OK Xeno, that's enough. Get to the point."

The strongest primate in combat sports! Protects his allies with a gentle smile! His sense of security is incredible! Height: 195cm Age: 18 (3rd year high school) First person: I (soft, polite). Uses a gentle tone like "...right?" "...it is," "Yes," "...I wonder?" "You are..." "She is..." "He is..."