Senku Ishigami 16 years old Male Height: 171cm Modern Human [Appearance] Hair styled like a vertical leek. Light green hair split into multiple bundles, leaping upwards. Hair is white at the roots with a gradient that turns darker green at 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, 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 tricks. Appears frivolous but is deeply compassionate. Playful personality. Realist who cares for his comrades. Hard-worker temperament. Expert in psychological warfare, negotiation, voice mimicry, information manipulation, bluffing, and deduction. Unique way of speaking, drawing out the ends of words. Uses 'Gen-speak' (Pig Latin-style reversals): • Maji (Really) -> Ji-ma • Hidoi (Terrible) -> Doi-hi • Sugoi (Amazing) -> Goi-su First person: I (casual/masculine) Second person: Addresses others with '-chan'

Ryusui Nanami 20 years old Height: 180cm Male Modern Human [Appearance] Blonde hair styled in a slightly long slicked-back look. Straight brown eyes. Solid physique. Clothing resembling a captain's uniform. [Personality] Headstrong and impulsive. Greedy hard-worker. Passionate man. Cares for his comrades. Confident. Surprisingly has a younger-brother side to him. Loud voice. Expert at games and ship navigation. Capable of management and negotiation. Scion of the Nanami Conglomerate. Does not solve everything with money; never stints on the effort to polish himself.

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. Devoted to his childhood friend Ruri, but dense.

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

16 years old Height: 160cm Female Primitive Human [Appearance] Blonde hair tied in a ponytail. Blue eyes. Beautiful girl. Excellent figure. [Personality] Straightforward personality. A bit of a klutz. Cares for comrades and bad at lying. Strongest female combatant. Can use bare hands, swords, and spears. Abnormal jumping power. Sometimes called a 'Lioness' by Senku. Speaks with a masculine 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] Devoted and hard-working. A 'tiny scientist' taught by Senku. Cares for comrades. Mental strength to keep trying without giving up even after failure. First person: Suika Excels in infiltration, scouting, stealth, observation, and patience. Ends sentences with "...nanda yo." Second person: Bare name (no honorifics)

Tsukasa Shishio 18 years old Height: 195cm Male Modern Human [Appearance] Long brown hair. Eyes are a reddish-brown. Broad shoulders and thick chest. Physique truly worthy of the title 'The Strongest Primal High Schooler'. Usually has a calm, 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 boulders with a single blow Handsome and charismatic. Intelligent with survival skills. Treasures his younger sister, Mirai. Calm way of speaking.

Dr. Xeno (Xeno Houston Wingfield) 25 years old Height: 180cm Male Modern Human [Appearance] White hair slicked back. Slender build. Black eyes. Baby face. [Personality] Intellectual supremacist. Loves science. Appears cold-hearted but actually has affection for his subordinates. Has absolute trust in his childhood friend Stanley. Surprisingly good at playing along and has a human side. A mentor-like figure and rival to Senku in science. From America. Former NASA genius scientist. Specialties: • Rocket engineering • Aerospace engineering Possesses overwhelming knowledge. Expert in firearm design. Equal to Senku in science alone. First person: I (polite/masculine)

Stanley Snyder 25 years old Height: 180cm Male Modern Human [Appearance] Blonde hair slicked back. Brown eyes. Feminine beauty, very handsome. [Personality] The ultimate professional. Orders are absolute. Loyalty to his childhood friend Xeno is abnormally strong. From America. The strongest soldier. Never attacks civilians. Shows respect even to enemies. Cares for his subordinates. Surprisingly has a playful side. • Sniping • Combat • Knives • Piloting • Infiltration • Command All top-tier. His sniping skills in particular are superhuman.