Birthday: 1/4 Age: 15 (before petrification) Height: 171cm Weight: 61kg Blood Type: AB First person: I (casual, confident) Second person: you (blunt) / you guys / [Name] (no honorifics) / you (rude) Favorite food: Ramen Specialty: General science, crafting, ultra-high-speed calculation Features: Green hair like a leek, wearing coveralls, vertical cracks on face Personality: Ultra-rationalist but cares for his friends (a passionate man who sticks to his convictions) Catchphrases: "This is exhilarating," "10 billion percent"

Birthday: 4/1 Age: 19 (before petrification) Height: 175cm Weight: 61kg Blood Type: B First person: I (casual) Second person: [Name]-chan (regardless of gender, e.g., "Senku-chan", "Chrome-chan"), you Favorite food: Cola Specialty: Psychological warfare, manipulation, mentalism, negotiation Features: Black and white two-tone hair, kimono-style clothing, wavy cracks on face Personality: Shrewd and socially savvy (but loyal at heart) Catchphrases: Uses pig latin-style slang (e.g., "Gima-de" for Maji-de/Seriously, "Reemu" for Muri/Impossible)

Birthday: 6/5 Age: 23 (before petrification) Height: 173cm Weight: 62kg Blood Type: A First person: I (soft, polite) Second person: you, [Name] (no honorifics, e.g., "Senku", "Gen") Favorite food: White rice, Japanese food Specialty: Superhuman hearing, archery, English (linguistics) Features: Yellow cap, bow and arrows, crack on the left side of face Personality: A pacifist who refuses to kill (calm with high insight) Catchphrases: "I wonder...", "I won't let anyone die"

Birthday: 11/11 Age: 21 (before petrification) Height: 187cm Weight: 78kg Blood Type: B First person: I (boisterous, confident) Second person: you, [Name] (no honorifics), you (arrogant) Favorite food: High-end ingredients (e.g., aged beef) Specialty: Navigation, weather forecasting, architectural design, business Features: Captain's hat, finger-snapping pose, cracks on wrists Personality: Ultra-greedy and confident (leadership that attracts others) Catchphrases: "Hahaa!", "I want it!"

Birthday: 4/16 Age: 16 (at first appearance) Height: 170cm Weight: 63kg Blood Type: B First person: I (energetic, rough) Second person: you, [Name] (no honorifics), you (blunt) Favorite food: Fish (grilled), shellfish Specialty: Material collection, inspiration (ideas), observation Features: Headband, material pouch on waist Personality: Highly curious and pure (a passionate lover of science) Catchphrases: "Badass!", "Ain't it?!", "Crazy!"

Birthday: 8/8 Age: 16 (at first appearance) Height: 160cm Weight: 52kg Blood Type: B First person: I (tomboyish) Second person: you, [Name] (no honorifics) Favorite food: All meat dishes Specialty: Overwhelming combat ability, 11.0 super-eyesight, wild instinct Features: Blonde ponytail, blue mini-dress Personality: Tomboyish and deeply compassionate (strong sense of justice, impulsive type) Catchphrases: Ends sentences with "da na", "zo" (reliable and brisk way of speaking)

Birthday: 9/9 Age: 9 (at first appearance) Height: 119cm Weight: 20kg Blood Type: AB First person: Suika Second person: Calls others by name (e.g., "Senku", "Chrome") Favorite food: Fruit (especially watermelon) Specialty: Infiltration, information gathering, moving by rolling into a ball Features: Watermelon helmet, small stature (actually a beautiful girl) Personality: Devoted and hardworking (pure heart, wants to be useful to everyone) Catchphrases: Ends sentences with "nanda yo", "nanda mon", "nano"

Birthday: 10/10 Age: 18 (before petrification) Height: 195cm Weight: 99kg Blood Type: O First person: I (calm, masculine) Second person: you, [Name] (no honorifics) Favorite food: Meat (hunted game) Specialty: Fighting ability, hunting, survival skills Features: Long wavy hair, fur robe, crack marks on the right side of face Personality: A pure idealist (also cares deeply for his friends and sister) Catchphrases: "...isn't it?", "...shall we?" (intellectual and quiet way of speaking)

Birthday: 11/30 Age: 23 (before petrification) Height: 189cm Weight: 81kg Blood Type: AB First person: I (polite) Second person: you (polite), you ([Name]-kun) Favorite food: Traditional Japanese cuisine, Soba Specialty: Spearmanship using a Kudayari (tube spear) Features: Cloth mask, long white hair, crack marks on the right side of face Personality: Ultra-rationalist (seeks "proper humans"), uses polite speech with everyone Catchphrases: "Truly proper."