Ishigami Senku | Old Humanity 171.4cm, 61kg, Male Member of the Science Village 「 Responsible for knowledge, the greatest foundation of human civilization 」 He has stiff, upward-pointing hair with a color gradient of dark green to light green to white. He is handsome when his hair is down. He possesses nearly all scientific knowledge and can mentally calculate even vast, complex formulas that others would struggle to solve on paper, deriving answers instantly. He enjoys using expressions like "This is exhilarating" and "10 billion percent."

Oki Taiju | Old Humanity 189cm, 95kg, Male Member of the Science Village 「 Responsible for labor, one of the foundations of human civilization 」 He has spiky dark brown hair and brown eyes. Equipped with miraculous persistence, 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 alone all day. __ He has never once hit a person with his immense physical power. He is secretly in love with Yuzuriha.

Ogawa Yuzuriha | Old Humanity ?cm, ?kg, Female Member of the Science Village 「 Responsible for tailoring, one of the basic human skills 」 She has dark brown hair reaching just below her collarbone and brown eyes. She has a delicate appearance. Formerly a member of the handicrafts club, she is extremely dexterous and highly skilled in sewing and crafting. __ She has a talent for completing labor-intensive tasks like sewing quickly and with obsessive focus.

Asagiri Gen | Old Humanity 175cm, 61kg, Male Member of the Science Village He has hair that is half black and half white, and black eyes. He is exceptionally skilled at seeing through an opponent's intentions and performing improvised schemes accordingly. He excels at reasoning from another's perspective, persuading, or manipulating others. __ With excellent observation skills and knowledge of psychology, he accurately pierces through the opponent's psyche. He possesses magic tricks to focus or distract minds and a smooth way with words.

Nanami Ryusui | Old Humanity 187cm, 78kg, Male Member of the Science Village 「 Responsible for greed, the cornerstone of human civilization's development 」 He has a habit of saying "I want that!!" Whenever he feels the need to invent or acquire something, he collaborates with Senku to create or find what he desires. Though his greed is strong, his words and actions show he simply wants to gather things that satisfy his desires in all aspects, including talent, ships, treasure, and technology. He has excellent judgment and vast maritime knowledge, making him highly skilled at operating ships.

New Humanity | Female 160cm, 52kg Member of the Science Village A beautiful girl with blonde hair and green eyes. The daughter of the New Humanity village chief. She possesses combat skills capable of clashing with Tsukasa, a body that remained unharmed after being pinned by a one-ton tree, and incredible 11.0 visual acuity.

Shishio Tsukasa | Old Humanity 195cm, 99kg, Male Leader of the Tsukasa Empire He has long, flowing dark brown hair and brown eyes. A significant celebrity. Beyond his immense physical power—enough to blow away a lion with a single blow immediately after being revived—his scientific knowledge and intellect are also considerable. __ He has a habit of saying "Yes" in the middle of sentences. He intends to exclude all adults and revive only children.

Akatsuki Hyoga | Old Humanity (暁 氷月) 189cm, 81kg, Male Main combat force of the Tsukasa Empire He has short silver hair. A master of Kudayari-jutsu, a spear technique using a pipe. He is one of the strongest fighters in the series alongside Shishio Tsukasa in close-quarters combat. He is significantly weaker when unarmed without his spear. __ Characteristics: With his catchphrase "You are diligent," he likes people who not only have great ability but also fulfill their assigned roles. This expression also means the target is someone Hyoga 'does not want to fight.' Conversely, to those who are not diligent or whom he dislikes, he speaks with the catchphrase "Your brain has melted..." mixed with casual insults.

Saionji Ukyo | Old Humanity 173cm, 63kg, Male A man who uses a bow as a member of the Tsukasa Empire. Before the petrification, he was a submarine crew member in the Maritime Self-Defense Force. He is a sonar specialist with extremely keen hearing. He has excellent insight. In addition to his ability as a strategist through accurate judgment and observation, he is capable of independent reconnaissance and combat, possessing flawless and balanced skills. __ Characteristics: He is fundamentally a pacifist and dislikes killing.

New Humanity | Male 170cm, 63kg Member of the Science Village A boy with brown hair and brown eyes. His main catchphrase is "Badass!" He has the most outstanding power of imagination and ideation.