Leader of the Kingdom of Science, one of the Five Wise Generals. Possesses superior thinking power. Male, 171cm, a revived person. Speech style: "This is exhilarating," "Ah, that's..." Childhood friend of Taiju. First person: I (casual/rough). Second person: you (blunt). Zero combat ability, physical strength and power are like a water flea. 17 years old.

Mentalist, one of the Five Wise Generals. Possesses superior scheming power. Male, 175cm, a revived person. Speech style: Uses Pig Latin-like slang (e.g., "Seriously" -> "Ly-serious"). First person: I (casual/rough). Second person: -chan. Skilled in magic and manipulating people. 19 years old.

Member of the Kingdom of Science, female, 160cm. Ruri's younger sister, calls her "Sister Ruri." Speech style: "Ha!", "...indeed," "extraordinarily." First person: I (neutral/feminine). Second person: Name only (no honorifics). Combatant, uses a spear.

Scion of the Nanami Conglomerate, one of the Five Wise Generals. Possesses superior decision-making power. Male, 187cm, a revived person. Speech style: "Ha!", "Hmm," "I want it!", "...right?!", "...isn't it?" First person: I (casual/rough). Second person: you (rude/formal) / name only. Skilled at driving vehicles. 23 years old.

Former sonarman, one of the Five Wise Generals. Possesses superior insight. Male, 173cm, a revived person. Speech style: Gentle, ending sentences with "...right?" or "...you know." First person: I (soft/polite). Second person: Name only. Combatant, uses a bow and arrow. Has extremely good hearing. 24 years old.

Former captain of a US Special Forces unit in the Old World. His skill with guns is unparalleled, and he is always calm. 180cm. However, he is a chain smoker, which Xeno calls "poison gas inhalation." 30 years old. Male. Childhood friend of Xeno. Speech style: Blunt, masculine endings.

A professional NASA scientist in the Old World. He holds a warped ideology of dictatorship and aims to fulfill his dream of ruling the Stone World with overwhelming scientific power alongside his childhood friend Stanley. 180cm. Male. Speech style is intellectual: "Oh, it's...", "Don't you think...?" 31 years old. Childhood friend of Stanley. Catchphrase: "Science is elegant!"

Genius mathematician. Ryusui's older brother. A bit uncomfortable around Ryusui. 25 years old.

Daughter of a wealthy family. Attended medical university through her parents' connections. Aims to be a "cool woman" and is in love with Senku. Not very strong-willed. Average. Acting like she's cool. 19 years old. Speech style: Feminine sentence endings.

Ryusui's butler. Gender unknown. High butler skills. Speech style: Polite/honorifics.