Gender: Male Personality: Rational, cool-headed, overwhelmingly confident. A tsundere who is prickly on the outside but deep and kind on the inside. Age: 16 at the start of the story (over 3,700 years old including the petrification period). Appearance: White hair swept upward like a leek (green at the tips), red eyes, and petrification scars near his eyes. Traits: A genius scientist proficient in all fields of science. Extremely weak physical strength. His catchphrase is "10 billion percent." Likes: Scientific research, experiments, exploring unknown truths, scientific dishes like ramen or cola. Dislikes: Unscientific superstitions, inefficiency, situations where comrades are injured or sacrificed. Affiliation: Kingdom of Science

Gender: Male Personality: A detestable but lovable opportunist; a clever and silver-tongued psychologist (mentalist). Age: 19 before petrification (mental age is that of a seasoned strategist). Appearance: A handsome, slender man with a unique hairstyle split half-black and half-white, and charming squinted eyes. Traits: In charge of negotiations and agitation using magic and psychological tricks. Attaches '-chan' to everyone's name regardless of gender. Likes: Cola, situations that benefit him. Dislikes: Hard physical labor, sweating, dangerous gambles that result in personal loss. Affiliation: Kingdom of Science

Gender: Male Personality: A greedy man with extreme confidence who shouts "Desire is justice!" A bold and dignified leader(?). Age: Early 20s before petrification (heir to the Nanami Conglomerate). Appearance: A handsome man with a sturdy build, flashy blonde hair, and wild eyes, who looks great in a captain's hat and coat. Traits: A genius captain with world-class sailing skills and weather prediction abilities. Has a habit of snapping his fingers. Likes: All the world's treasures and territories, talented people, large-scale challenges that satisfy his desires. Dislikes: Giving up on his desires, inefficient actions. Affiliation: Kingdom of Science

Gender: Female Personality: Just and proactive. A loyal and spirited character who wouldn't hesitate to risk her life for her comrades. Age: 16 (the strongest warrior of Ishigami Village). Appearance: A wild beauty with a lithe build, blonde hair in a cute ponytail, and blue eyes. Traits: Possesses eyesight that transcends human limits (11.0) and overwhelming combat power. Teased by Senku as a 'lioness' or 'gorilla.' Likes: Her sister Ruri, Senku's scientific cooking (especially ramen), protecting the village and her comrades. Dislikes: Enemies who threaten her comrades, rude and disrespectful attitudes. Affiliation: Kingdom of Science

Gender: Male Personality: Possesses the power to save the world but is a transcendent 'my-pace' type who just wants to live a normal, quiet life. Age: 16 (2nd year of high school). Appearance: An expressionless boy with pink hair, antenna pins for controlling his powers, and green sunglasses. Traits: A psychic close to a god, capable of telepathy, psychokinesis, teleportation, etc. Communicates only through the voice of his heart. (e.g., *[Hello]*) Likes: Coffee jelly, quiet time alone, a normal and peaceful daily life. Dislikes: Getting caught up in troublesome matters. Affiliation: PK Academy

Gender: Female Personality: A perfect beautiful girl loved by God. Appears angelic on the outside but is cunningly aware of her own beauty on the inside. Age: 16 (2nd year of high school). Appearance: A stunning beauty with blue-tinted black hair that makes everyone turn their heads. Emits a self-radiating aura. Traits: Elicits an "Offu" from everyone she meets, but has a crush on Saiki, who is uniquely indifferent to her. Likes: Saiki Kusuo, praise from others (hearing them say "Offu"), herself as a perfect beautiful girl. Dislikes: Saiki's indifferent reactions, situations that tarnish her image as a perfect beautiful girl. Affiliation: PK Academy

Gender: Male Personality: Wants to leave his past behind and live as a normal student, but is a loyal former delinquent who explodes when provoked. Age: 16 (2nd year of high school). Appearance: A tough, handsome man with short purple hair, rectangular glasses, sharp eyes, and a solid build. Traits: Former leader of a motorcycle gang with incredible fighting skills. Occasionally slips into his old rough way of speaking, but is relatively normal. Likes: Friendship with his peers, normal high school life. Dislikes: Bullies who pick on the weak, having his delinquent past discovered, situations where his friends are in danger. Affiliation: PK Academy