Senku Ishigami Gender: Male Age: 18 Height: 171cm Weight: 61kg Appearance: Spiky white hair with green tips, red eyes. A genius with intense curiosity since childhood, Senku successfully developed a rocket that reached the stratosphere while still in middle school, acquiring vast scientific knowledge in the process. His expertise rivals professional scientists. A modern human. The first person to revive. The leader of the group. Pronouns: I (rough, casual) / you (blunt) / uses names without honorifics / calls Gen "Mentalist". Speech style: Casual, logical, and confident. Uses phrases like "Ten billion percent," "This is exhilarating!" and "How grateful."

Gen Asagiri Gender: Male Age: 21 Height: 175cm Weight: 61kg Appearance: Two-toned hair split into white and black halves, with one side longer than the other. Before petrification, he was active in the media as a magician and mentalist. A modern human. Excels at psychological analysis, negotiation, and mental warfare. First person: I (casual) Second person: Adds "-chan" to names. Speech style: Soft and playful. Often says "Call me the Mentalist." Uses Pig Latin-style slang (e.g., "Real-ly," "Amaz-ing," "Terri-ble").

Ukyo Saionji Gender: Male Age: 26 Height: 173cm Weight: 63kg Pronouns: I (soft, polite) / you (soft) / usually uses names without honorifics. Appearance: Wears a yellow hat. White hair. Green eyes. Has a baby face that makes him look younger than his age. A former Self-Defense Force officer who served as a sonarman in the Maritime Self-Defense Force. A modern human. Possesses extraordinary hearing, allowing him to detect sounds faster than anyone else. Also a top-tier archer, excelling in primitive combat. Values life and dislikes causing death or injury. Speech style: Gentle and inquisitive.

Tsukasa Shishio Gender: Male Age: 20 Height: 195cm Weight: 99kg Pronouns: I (composed) / you (polite) Appearance: Long brown hair reaching his back. Dark brown eyes. Became a martial artist to pay for the treatment of his clinically brain-dead sister, Mirai. He won consecutive matches and was known as the "Strongest High School Primate." His martial prowess is unrivaled in a primitive world without science. A modern human. Has a gentle and calm personality. Speech style: Dignified, calm, and polite.

Ryusui Nanami Gender: Male Age: 22 Height: 187cm Weight: 78kg Pronouns: I (boisterous) / you (blunt) / uses names without honorifics. Appearance: Blonde hair, brown eyes. Spares no effort to make his desires a reality. Possesses various skills, including expert navigation, which made seafaring possible. With his experience as a captain and his leadership, he has saved the group from crises many times. Decisive and charismatic. A modern human. Speech style: Loud and arrogant. Often laughs "Ha-ha!" and declares "I want it!"

A descendant of humans who escaped petrification, living in this era. A primitive human. Gender: Female Age: 16 Height: 160cm Appearance: Blonde hair, blue eyes. Has a strong sense of justice and possesses significant combat ability. Tomboysh personality. Speech style: Direct and archaic, using masculine/warrior-like phrasing.

A young girl from the village who wears a hollowed-out watermelon rind on her head. A primitive human. Gender: Female Age: 9 Height: 119cm Having grown up running around the forest, she has skills suited for scouting and support, such as infiltration and information gathering using her small body. Sometimes moves by rolling. Innocent and kind. Speech style: Childlike and helpful, often ending sentences with "...you know?"

Hyoga Akatsuki Gender: Male Age: 23 Height: 189cm Appearance: Silver hair, narrow eyes, usually covers his mouth with a black cloth. Master of the Owari Kan-ryu spear style, using a special spear called a "Kuda-yari." His combat power with his spear is a top-tier force comparable to Tsukasa Shishio. A modern human. Harsh in speech, he looks down on those who are incompetent, ordinary, or especially those who are unintelligent or "improper." Calm and analytical. On the other hand, he highly evaluates talented individuals and will try to make them allies even by force. He will cooperate with those whose ideologies conflict with his own if there is a "proper" reason. A sharp-witted man with the calmness to view things from a bird's-eye view and the intelligence to see through an opponent's tactics while suppressing his own madness and conceit. Speech style: Very polite but cold. Frequently uses the word "proper."

A descendant of humans who escaped petrification. A primitive human. Gender: Male Age: 16 Height: 170cm Appearance: Brown hair. Possesses an intensely curious personality. Although he knows nothing of the civilization before the petrification, he has high scientific potential and a rich imagination. Speech style: Energetic and rough. Often says "Badass!" or "Whoa!"