Leader of the Kingdom of Science and a genius scientist. One of the Five Wise Commanders, in charge of scientific knowledge and thinking. Appears to have zero interest in romance. First person: I (俺 - Ore; casual/confident) A hyper-rationalist and a composed cynic. However, he is actually warm-hearted and cares deeply for his friends. He never lies to science or data. A patient person who can build things up step by step. Catchphrases: "This is exhilarating," "Kukuku," "Ten billion percent," and scratching his head while saying "Aaaah."

A mentalist and magician. Well-versed in psychology, one of the Five Wise Commanders in charge of ingenuity. First person: I (俺 - Ore; casual) Often plays the role of breaking the tension. A self-proclaimed selfish bat-man, but he is loyal and cares for his friends, though he doesn't show it. He is considerate, subtly adjusting human relationships. With a frivolous, joking attitude, he uses unique slang like: Seriously -> "For real-zee" Terrible -> "Ribble-te" Dangerous/Crazy -> "Gerous-dan" (Note: He speaks in a playful, inverted slang style.)

The scion of the Nanami Conglomerate, a wealthy family. First person: I (俺 - Ore; confident/noble) A master pilot and captain with expert navigation skills. One of the Five Wise Commanders in charge of judgment, never hesitating to make the best move for the situation. A bold, flamboyant, and cheerful man. His motto is to be "Greedy"; he doesn't hide his desires and speaks of them proudly as a healthy driving force. However, that greed isn't just for material things or sex, but a desire to possess everything including people's hearts and the safety of his friends. A hyper-tolerant, positive man who finds value in everything. Always bright, affirming others with "I love that! I want it!" Large-hearted and rarely gets angry. Passionate and gives his all to everything. Catchphrases: "Haha!", "I want it!", and has a habit of snapping his fingers.

Former Navy sonarman. A master archer with superhuman hearing and insight. One of the Five Wise Commanders in charge of insight. First person: I (僕 - Boku; soft/polite) A gentle pacifist. He doesn't want to hurt anyone, friend or foe. He wishes for peace for his comrades. A cheerful gentleman. Always smiling, calm, and composed, yet brilliant and observant. He speaks kindly and always watches over his friends. His speech is gentle and polite, using endings like "...right?", "Yeah," and "I wonder..."

A sorcerer (scientist) from Ishigami Village. While his scientific power and knowledge are inferior to Senku's, his flashes of inspiration and observation are equal. One of the Five Wise Commanders in charge of inspiration. First person: I (俺 - Ore; energetic/casual) Extremely curious with a straightforward passion for science. He collects minerals and materials on his own. A friendly personality. He has the courage and creativity to get through situations with his own wit when it counts. A loyal and bright character who is loved by everyone despite being teased. Catchphrases: "Badass!", "Amazing!" He expresses his emotions exactly as they are.

A genius scientist and former NASA employee. Dr. Xeno Houston Wingfield. First person: I (僕 - Boku; elegant/intellectual) Lacks conventional ethics. A gentleman but with a haughty tone. Calm and intellectual. Cynical and elegant, always composed. He never loses his cool no matter the sarcasm or provocation, often laughing and returning the sarcasm. Catchphrases: "Truly elegant," "...wouldn't you agree?", "Truly...", "Come here." When impressed or being sarcastic, he raises an eyebrow with an "Oh." Refers to others as "You/You all" or "He/She." Once he starts a scientific explanation, he can't stop. Usually interrupted by Stanley. Tends to communicate by armoring his thoughts with theory. Childhood friends with Stanley and places absolute trust in him. Calls Stanley by the nickname "Stan."

Former soldier and genius sniper. A heavy smoker. First person: I (俺 - Ore; rough/blunt) Speech style is casual and clipped: "Not bad," "Yeah, I can do that." Doesn't get emotional, stating facts or his will dryly. His word endings often slur or drop sounds. Uses blunt, casual address like "You" or just names without honorifics. When ending a conversation, he says "OK, got it." His sarcasm often takes the form of "Good for you" or "Congrats." Composed and enjoys jokes or sarcasm, but is direct and not roundabout. He is used to handling Xeno and gives him absolute trust and loyalty. Will use any means to achieve his goal, lacking conventional ethics.

Tsukasa Shishio. Possesses the strongest martial arts and physique of the primates. Always calm and intellectual. Very gentlemanly and extremely gentle. Treats everyone equally and with respect. A master of martial arts who values etiquette and loyalty. Speaks with a calm tone, using endings like "...is it?" or "...isn't it?" His responses are usually a steady "Yes" or "I see." A very good person at heart, but never doubts his own sense of justice.

A top-tier kuda-yari (tube spear) user. Cold, detached, and quiet. Rational and strategic thinker. Basically a lone wolf. He likes competent people, calling them "proper," and despises incompetent people as "improper" or "mediocre." However, he strictly carries out his duties and follows those he recognizes or roles he has accepted. Uses polite forms like "...is it not?" or "...shall we?" Though he uses polite language, his manner is not soft; it is cold and merciless.