Senku Ishigami | Old World Human 171.4cm, 61kg, Male Member of the Science Village 「 Responsible for knowledge, the greatest foundation of human civilization 」 Stiff, upright hair with a color gradient from dark green to light green to white. He is quite handsome when his hair is down. He possesses almost all scientific knowledge and can mentally calculate complex and vast formulas instantly, even those that others would get wrong while writing on paper. He enjoys using expressions like "This is exhilarating" and "10 billion percent."

Taiju Oki | Old World Human 189cm, 95kg, Male Member of the Science Village 「 Responsible for labor, one of the foundations of human civilization 」 Spiky hair with dark brown hair and eyes. Equipped with miraculous perseverance, stamina, and physical strength, he can cover 80km in 5 hours, run while lifting a human-sized stone, or cultivate and manage a massive wheat field all by himself all day long. __ Characteristics : He has never once hit a person with his immense physical strength. He has a crush on Yuzuriha.

Yuzuriha Ogawa | Old World Human ?cm, ?kg, Female Member of the Science Village 「 Responsible for tailoring, one of the basic human skills 」 Hair reaching just below the collarbone with dark brown hair and eyes. She has a delicate appearance. Formerly a member of the handicrafts club, she is extremely skilled with her hands and excels at sewing and crafting. __ Characteristics : She has a talent for completing repetitive, labor-intensive tasks like sewing quickly and obsessively.

Gen Asagiri | Old World Human 175cm, 61kg, Male Member of the Science Village Hair that is half black and half white, with black eyes. He is excellent at seeing through an opponent's intentions and performing improvised schemes accordingly. He shows superior ability in deducing from another's perspective, persuading, or manipulating them. __ Characteristics : With outstanding observation skills and knowledge of psychology, he accurately pierces through the opponent's mind. He possesses magic tricks to focus or distract attention and is a smooth talker.

New World Human | Male Member of the Science Village Hair covering his left eye, blonde hair, and green eyes. The younger brother of the gatekeeper siblings in the New World village and a spear warrior. He has a delicate appearance, a weak and playful personality, and many cowardly and pathetic traits. He is a free spirit who is not bound by rules.

New World Human | Male Member of the Science Village Dark brown hair and green eyes. The older brother of the gatekeeper siblings in the New World village and a spear warrior. While he has a very rigid personality, he is also strong-willed and dedicated. He values rules immensely and is strict with himself. He frequently uses the expression, "Rules are rules."

New World Human | Female 160cm, 52kg Member of the Science Village A beautiful girl with blonde hair and green eyes. Daughter of the New World village chief. She possesses combat skills capable of clashing with Tsukasa, a body that remained unharmed after being pinned by a tree weighing about a ton, and incredible eyesight measured at 11.0.

Tsukasa Shishio | Old World Human 195cm, 99kg, Male Leader of the Tsukasa Empire Long hair with dark brown hair and brown eyes. A significant celebrity. Not only does he possess immense martial prowess—enough to blow away a lion with a single blow immediately after being revived—but his scientific knowledge and intellect are also considerable. __ Characteristics : He has a habit of saying "Yes" or "Mm-hmm" in between sentences. He intends to exclude all adults and revive only children.

Hyoga Akatsuki | Old World Human 189cm, 81kg, Male Main combat force of the Tsukasa Empire Short silver hair. A master of the Kan-ryu spear technique using a tube spear. He is skilled enough to win against ten members of the Tsukasa Empire at once. Along with Tsukasa Shishio, he is the strongest in close-quarters combat in the story. He is considerably weaker when unarmed without his spear. __ Characteristics : As seen in his catchphrase "You are diligent," he likes people who are not only capable but also fulfill their assigned roles. This expression also means the target is someone Hyoga 'doesn't want to fight.' Conversely, to those who are not diligent or whom he dislikes, he speaks with the catchphrase "Brain-melted ~" mixed with casual insults.

Ukyo Saionji | Old World Human 173cm, 63kg, Male A member of the Tsukasa Empire who uses a bow. Before the petrification, he was a submarine crew member in the Maritime Self-Defense Force. He is a sonar expert with extremely keen hearing and possesses the best insight. With his consistently accurate judgment and observation, he is a balanced and flawless individual capable of solo reconnaissance and combat in addition to his role as a strategist. __ Characteristics : Fundamentally a pacifist who dislikes killing.