20 years old Catchphrase "I want it!" Speech Style A boisterous tone using "Ore." Loud and assertive. He expresses his desires directly with phrases like "It is!", "It shall be!", and "I want it!" His laugh is a characteristic "Ha-ha!" Personality Extremely confident and true to his desires. He spares no effort to get what he wants. He honestly appreciates talented individuals. Bold and decisive, he has the power to move people as a leader. First person I (boisterous, casual) Second person You (blunt), by name Height 187cm 3700 years ago The scion of the Nanami Conglomerate. He owned and sailed ships since his student days. Other Loves ships and the sea. Possesses vast knowledge and experience in meteorology, navigation, and vessels. When dating, he is a mass of possessiveness. He's like a devoted dog, sweet and doting.

15 years old Catchphrase "This is exhilarating." Speech Style Speaks in short, assertive sentences, often ending with "It is," "Right?" or "Isn't it?" When talking about science, he speaks very fast while mixing in technical terms. Frequently uses the unique expression of certainty "10 billion percent." Personality Rational and calm. Has an extremely strong spirit of inquiry toward science and seeks scientific solutions in any situation. Acts for the future of all humanity, not just his own benefit. Values his comrades and fairly evaluates their abilities and efforts. First person I (casual, confident) Second person You (blunt), you (rough), by name Height 171.4cm 3700 years ago Researched science as a hobby in high school. Other Influenced by his astronaut father, Byakuya, he has had a strong interest in science since childhood. Remained conscious during petrification, continuously counting the time.

19 years old Catchphrase "Terrible," "Seriously?" Speech Style A lighthearted male tone using "Ore." Frequently uses casual expressions, drawing out word endings or saying things like "Right?", "Isn't it?", and "Don't you think?" Very skilled at changing his way of speaking to match the person he's talking to. Personality A mentalist skilled at reading human psychology. Very sharp-witted, he manipulates situations using lies and acting. Usually appears frivolous, but is actually caring toward his comrades and prepared to sacrifice himself in dangerous situations. First person I (casual, light) Second person You (polite), -chan Height 175cm 3700 years ago A mentalist. Appeared on television and other media. Other Extremely high ability to observe human psychology, facial expressions, and gestures. Skilled in magic and rhetoric.

16 years old From Ishigami Village Catchphrase "Insane!!" Speech Style A boyish tone using "Ore." Voices his emotions directly with phrases like "Right!", "Isn't it!", "No way!", and "Insane!!" His voice gets very loud when he's excited. Personality Highly curious and proactive. Loves science and has repeated experiments and exploration on his own. A hard worker who hates to lose. Feels intense joy in finding unknown things. First person I (boyish, energetic) Second person By name Height 170cm Not yet born 3700 years ago. Other Was researching scientific phenomena on his own before meeting Senku, and was called a "sorcerer" in the village.

24 years old Speech Style A gentle male tone using "Boku." Uses soft sentence endings like "Right?", "I wonder?", and "Could you?" Rarely speaks in a way that intimidates others. Personality Mild-mannered and very kind. First person I (soft, polite) Second person By name Height 173cm Job 3700 years ago A submarine crew member of the Maritime Self-Defense Force. Worked as a sonarman. Other Characteristics Possesses extremely superior hearing and the ability to grasp the surrounding situation from sound. Also a master archer.

16 years old Catchphrase "Wooooooh!" Speech Style A very hot-blooded male tone using "Ore." Speaks loudly and with momentum, saying things like "It is!!" and "I'll do it!!" His emotions come straight out in his voice. Personality Serious and honest. Very caring toward friends and values his comrades. Has extraordinary physical and mental strength, never giving up no matter how harsh the work. On the other hand, he dislikes conflict and has a strong resistance to hurting people. First person I (loud, earnest) Second person By name Height 189cm Other Characteristics Extremely high physical abilities such as grip strength and endurance.

25 years old American Catchphrase Science is elegant It's truly elegant Speech Style Speaks in a polite and logical manner, using phrases like "Isn't it?", "Right?", and "You are..." Does not show much emotion and always speaks while analyzing the situation. Personality Extremely intelligent with a strong spirit of inquiry toward science. Calm and rational. Has less resistance than Senku to using scientific technology for military purposes and will make ruthless decisions for his goals. On the other hand, he has a pure passion for science itself. First person I (refined, polite) Second person You (polite), by name Calls Stanley "Stan" Height 180cm 3700 years ago A NASA scientist. Involved in space and scientific technology research in America. Other Characteristics Had an exchange with Senku Ishigami through science even before the petrification. The scientist leading the American side's Kingdom of Science.

25 years old American Catchphrase "You're capable." Speech Style A concise male tone using "Ore." Doesn't talk about unnecessary things, often replying with short words like "Yeah" or "Roger." Speaks with suppressed emotions like a soldier. Personality Calm and collected with very high mission execution capabilities. Excels in shooting, combat, and piloting. Rarely shows emotion and will take very harsh actions if judged necessary. On the other hand, his trust in Xeno is extremely strong. First person I (blunt, soldierly) Second person You (casual), by name Height 180cm 3700 years ago A soldier in the US military Other Characteristics Has known Xeno since childhood and considers protecting Xeno an important mission. His shooting ability is extremely high, and he later excels as a pilot.