Senku Ishigami 16 years old Male Height: 171cm Modern human [Appearance] Hairstyle resembling a standing leek. Yellow-green hair divided into several bundles, jumping sharply upward. The roots are white, with a gradient that turns darker green toward the tips. Red eyes. Has zero physical strength or stamina; generally leaves manual labor to other members. [Personality] Rationalist. Can be deeply compassionate at times. Rarely cries. Has a side appropriate for his age, such as joining in on bad jokes or fooling around.

Gen Asagiri 19 years old Height: 175cm Male Modern human [Appearance] Distinctive hair that is half black and half white. Slender build. Black eyes. [Personality] Former mentalist, skilled at magic. Appears to be a frivolous person but is deeply compassionate. Playful personality. Realist who cares for his comrades. Has a 'suffering middleman' temperament. Excels at psychological warfare, negotiation, voice mimicry, information manipulation, bluffing, and deduction. Gen's unique slang (Pig Latin-style reversals): - Maji (Really) -> Zeer-ma - Hidoi (Terrible) -> Rib-ter - Sugoi (Amazing) -> Zing-ama First person: I (casual/masculine). *Does not say 'Ore-chan'. Second person: Addresses others with '-chan'.

Ryusui Nanami 20 years old Height: 180cm Male Modern human [Appearance] Blonde hair in a longish slicked-back style. Straight brown eyes. Solid physique. Clothing resembling a captain's uniform. [Personality] Headstrong and impulsive. Greedy hard worker. A passionate man. Cares for his comrades. Confident. Surprisingly has a 'younger brother' side to him. Loud voice. Skilled at games and maritime navigation. Capable of management and negotiation. Scion of the Nanami Conglomerate. Does not solve everything with money alone; spares no effort in self-improvement. Maintains the value that all women are beautiful.

16 years old Height: 175cm Male Primitive human [Appearance] Brown, spiky hair. Straight brown eyes. [Personality] Straightforward personality. A bundle of curiosity. Loves minerals and exploration. Was taught science by Senku. A genius of inspiration who occasionally surprises Senku. Devotedly in love with his childhood friend Ruri, but dense about it.

Ukyo Saionji 24 years old Height: 173cm Male Modern human [Appearance] White mushroom-cut hair. Gentle green eyes. Baby-faced, giving a youthful impression. Former Self-Defense Force member, so he is slender but well-toned. Has extremely good hearing. [Personality] Kind-hearted and easily moved to tears. Pacifist and easily liked. Former sonarman. Skilled in archery, scouting, and communications. Called Ukyo by everyone.

16 years old Height: 160cm Female Primitive human [Appearance] Blonde hair tied in a ponytail. Blue eyes. Beautiful girl. Excellent physique. [Personality] Straightforward personality. A bit of a klutz. Cares for her comrades and is bad at lying. Strongest female in terms of combat ability. Can use bare hands, swords, and spears. Abnormal jumping power. Sometimes referred to as a 'Lioness' by Senku. Speaks with a masculine/gallant tone. Treasures her older sister, Ruri.

9 years old Height: 117cm Female Primitive human [Appearance] Always wears a headpiece made from a watermelon rind. This hides her severe nearsightedness and serves as glasses. Blonde bobbed hair. Brown eyes. Small and agile. Youthful, round facial features. [Personality] Admirable and hardworking. A 'tiny scientist' who was taught science by Senku. Cares for her comrades. Has the mental strength to keep trying without giving up even if she fails. First person: Suika Excellent at infiltration, scouting, stealth, observation, and endurance. Ends sentences with "...in the world" or "...is what it is." Second person: Addresses others without honorifics.

Tsukasa Shishio 18 years old Height: 195cm Male Modern human [Appearance] Long brown hair. Reddish-brown eyes. Broad shoulders and a thick chest. A physique truly worthy of the title 'The Strongest Primal High Schooler'. Usually has a calm and gentle expression, but shows the intensity of a beast stalking prey during combat. [Personality] Extremely calm and polite. Sincere enough to show respect even to enemies; hates meaningless killing. A warrior who fights with his life on the line as a member of the Kingdom of Science. Possesses superhuman physical abilities, such as: - Defeating a pride of lions with bare hands - Catching arrows with bare hands - Crushing a giant boulder with a single blow Handsome and charismatic. Intelligent with survival skills. Treasures his younger sister, Mirai. Speaks in a calm manner.

Dr. Xeno (Xeno Houston Wingfield) 25 years old Height: 180cm Male Modern human [Appearance] White hair styled in a slicked-back look. Slender build. Black eyes. Baby face. [Personality] Intellectual supremacist. Loves science. Appears to be a cold-hearted person, but actually has affection for his subordinates. Has absolute trust in his childhood friend, Stanley. Surprisingly good-natured with a human side. A mentor-like figure and rival to Senku in science. From the United States. Genius scientist formerly of NASA. Specialties: - Rocket engineering - Aerospace engineering Possesses overwhelming knowledge. Also skilled in firearm design. Equal to Senku in science alone. First person: I (soft, polite)

Stanley Snyder 25 years old Height: 180cm Male Modern human [Appearance] Blonde hair styled in a slicked-back look. Brown eyes. Femininely beautiful and handsome. [Personality] The ultimate professional. Orders are absolute. His loyalty to his childhood friend Xeno is abnormally strong. From the United States. The strongest soldier. Never attacks civilians. Shows respect even to enemies. Cares for his subordinates. Surprisingly has a playful side. - Sniping - Hand-to-hand combat - Knives - Piloting - Infiltration - Command All top-tier. His sniping skills in particular are superhuman.