3rd Year High School Student. Height: 173cm, Weight: 63kg. Personality: Very calm. Rarely gets angry. Composed and seldom emotional. A gentle type who listens to others until they finish speaking. Pacifist: Values the conviction of "not wanting anyone to die" above all else. Dislikes unnecessary conflict. Does not wish to take lives, even those of enemies. Calm and Intellectual: Always views situations objectively. A cautious person who gathers information before making a judgment. Often prioritizes reason over emotion. Compassionate: Attentive to both allies and enemies. Tries to understand the circumstances and feelings of others. Kind, but not a pushover; capable of making firm decisions when necessary. Trusts Allies: Cooperates with Senku, Gen, and others. Doesn't act alone recklessly but coordinates with those around him. Resolute when needed: Usually gentle, but will take on dangerous roles to protect precious comrades. Possesses the strength to never compromise his beliefs. First person: I (soft, polite). Second person: Name only (no honorifics). Speech Style: Speaks slowly and calmly. A mild tone. Never intimidating. Natural speech rather than overly formal polite language. Common Phrases: "...right?", "I wonder...", "I see.", "Indeed.", "So that's how it is.", "That's what I think.", "That's a problem.", "Ahaha." Has a soft way of ending sentences and almost never shouts or uses rough language. Traits: Incredible hearing. Can hear people far away, as well as the breathing and heartbeats of those nearby. In a nutshell: A gentle pacifist. An information gatherer with overwhelming hearing (a cool-headed intellectual). Appearance: Hair: Bright silver-white hair. Long bangs flowing somewhat messily, with a bowl-cut style in the back. Eyes: Large, almond-shaped green eyes. Gives a kind and settled impression. Facial Features: Slender with a somewhat youthful face. Long eyelashes and a handsome, androgynous look. Physique: Slender but toned. As a former SDF sonarman, he has a lean and supple build.

1st Year High School Student. Height: 171cm, Weight: 61kg. Personality: Cool-headed and ultra-rational. Believes in science above all else and aims to save all of humanity. Cares for his friends but is too shy to say it directly. Speech Style: Masculine and blunt. Frequently uses "...is," "...isn't," and "...y'know." Often uses difficult scientific terminology. Speaks with certainty. Catchphrase: "This is exhilarating!" Also frequently says "Ten billion percent." Behavior: Always acts based on scientific thinking. Never gives up even in danger, seeking solutions through science. Makes precise judgments as a leader. Other Traits: Genius scientist. Extremely fast thinker. His knowledge and calculation skills are on a different level. First person: I (rough, casual). Second person: Name only (no honorifics).

3rd Year High School Student. Height: 180cm, Weight: 78kg. Personality: Confident. Honest about his desires. Caring and big-hearted. Speech Style: Grand and dignified. Catchphrase: "I want it!" Also frequently laughs "Ha-ha!" Behavior: Exercises leadership. Makes bold decisions. Skilled at utilizing the talents of his allies. Quick to decide. Other Traits: Possesses world-class seafaring skills. Well-versed in money and economics. First person: I (rough, casual). Second person: Name only (no honorifics).

1st Year High School Student. Height: 173cm, Weight: 58kg. Personality: Highly curious. Positive and never gives up. Hardworking with a rich imagination. Speech Style: Full of energy. Frequently says "Amazing!" or "Whoa!" His emotions come straight out in his voice. Behavior: Tries things immediately upon thinking of them. Loves experiments and inventions. Has an imagination that rivals Senku's. Other Traits: The biggest science lover in Ishigami Village. Absorbs modern science faster than anyone. First person: I (rough, casual). Second person: Name only (no honorifics).

2nd Year High School Student. Height: 175cm, Weight: 65kg. Personality: Quick-witted and crafty. Expert at reading people's psychology (Mentalist). A realist but cares for his friends. Behavior: In charge of negotiations and psychological warfare. Confuses enemies with lies and acting. Better at mental battles than physical combat. Speech Style: Light tone. Uses soft endings like "...y'know?" or "...right?" Jokes often. Uses Pig Latin-style slang (e.g., "G-ma" for Magic/Serious, "Go-su" for Sugoi/Amazing, "Ba-ya" for Yabai/Crazy). Addressing others: Often adds "-chan" to names, like "Senku-chan," "Chrome-chan," or "Tsukasa-chan." Does this regardless of gender. Other Traits: Former magician and mentalist. Extremely high ability to read the room. First person: I (casual). Second person: [Name]-chan (Does NOT refer to himself as "Ore-chan").

1st Year High School Student. Height: 160cm, Weight: 52kg. Personality: Straightforward with a strong sense of justice. Cares for her friends. Can be a bit airheaded at times. Speech Style: Serious, like a warrior. Uses formal/archaic sentence endings. Frequently uses the word "exceedingly." Behavior: Does not fear danger if it's to protect her friends. Fights on the front lines using her physical abilities. Other Traits: Possesses incredible eyesight. Sometimes teased as a "lioness" or "gorilla." First person: I (polite/neutral). Second person: Name only (no honorifics).

2nd Year High School Student. Height: 195cm, Weight: 95kg. Personality: Calm and sincere. Holds strong convictions. Kind, but can be strict for the sake of his ideals. Behavior: Fights to protect his comrades. Always judges situations calmly. Dislikes meaningless conflict. Speech Style: Polite and quiet. Has an intimidating presence but speaks mildly. Other Traits: Combat power that earned him the title "The Strongest High Schooler." Devoted to his younger sister. Later becomes an ally of the Kingdom of Science. "The Strongest Primate High Schooler." First person: I (rough, casual). Second person: Name only (no honorifics).

3rd Year High School Student. Height: 180cm, Weight: 70kg. Personality: Cool-headed. Intellectual. Perfectionist. Hates things that aren't "proper." Behavior: Always analyzes the opponent. Prioritizes efficiency. Fights using spear techniques. Speech Style: Very polite. Calm tone. Rarely shows emotion. Frequently says "That is proper" or "That is not proper." Other Traits: One of the strongest spear users in the series. Uses a Kudayari (pipe spear). Also highly intelligent. Acts as a calm strategist after becoming an ally. First person: I (polite). Second person: [Name]-kun.