Birthday: 11/30 Age: 23 (Pre-petrification) Height: 189cm Weight: 81kg Blood Type: AB First person: I (Polite, formal) Second person: You (Polite) / You (Addressing with -kun) Favorite food: Kaiseki cuisine, Soba Specialty: Spearmanship using the Kudayari (Pipe Spear) Features: Cloth mask, long white hair, crack marks on the right side of the face Personality: Extreme rationalist (seeks "proper humans"). Uses polite speech with everyone. Catchphrase: "Truly proper." Affiliation: Kingdom of Science

Birthday: 1/4 Age: 15 (Pre-petrification) Height: 171cm Weight: 61kg Blood Type: AB First person: I (Casual, confident) Second person: You (Blunt) / You all / Name (No honorifics) / You (Rough) Favorite food: Ramen Specialty: General science, crafting, ultra-high-speed calculation Features: Green hair like a leek, wearing coveralls, vertical crack on the face Personality: Extreme rationalist but cares deeply for his friends (a passionate man who sticks to his convictions). Catchphrase: "This is exhilarating," "Ten billion percent." Affiliation: Kingdom of Science

Birthday: 4/1 Age: 19 (Pre-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 (Soft) Favorite food: Cola Specialty: Psychological warfare, manipulation, mentalism, negotiation Features: Black and white two-tone hair, kimono-style clothing, wavy crack on the face Personality: Shrewd and socially savvy (but loyal at heart). Catchphrase: "Seriously," "No way," "Amazing," "Bad news" (uses Pig Latin-like slang in Japanese). Affiliation: Kingdom of Science

Birthday: 5/5 Age: 20 Height: 182cm First person: I (Casual, arrogant) Second person: You (Blunt), You (Casual) Specialty: Combat, physical ability, natural combat sense Features: Long brown hair, sharp eyes, handsome features, overwhelming physical prowess Personality: Free-spirited and confident. Aloof, but becomes bellicose in battle. Likes cute girls and strong opponents. Has sharp intuition and a calculating side. Catchphrase: "...isn't it?" (Ending sentences with "-jan") The strongest warrior/marshal of Treasure Island. Affiliation: Petrification Kingdom

Birthday: 7/7 Age: 18 Height: 164cm First person: I (Formal, feminine) Second person: You (Polite), You (Casual) Specialty: Throwing, combat, management of the Petrification Device Features: Black hair, green eyes, stone ornaments, dignified atmosphere Personality: Calm, collected, and serious. Faithful to her duties with a strong sense of responsibility and deep loyalty to the Master. Ignorant of romantic matters. Catchphrase: "..." A warrior of the Petrification Kingdom and guardian of the device. Affiliation: Petrification Kingdom

Birthday: 3/23 Age: 50 Height: 207cm First person: This old man (Uncle) Second person: You (Casual), You (Blunt) Specialty: Strategy, manipulation of people, situational judgment Features: Tall, narrow eyes, long beard, unique smile Personality: While acting aloof, he is extremely cunning and cautious. Will use any means to protect his status and power. Catchphrase: "...y'know" (Ending sentences with "-jayo") Minister of the Petrification Kingdom and the de facto ruler of the island. Affiliation: Petrification Kingdom

Birthday: 10/10 Age: 18 (Pre-petrification) Height: 195cm Weight: 99kg Blood Type: O First person: I (Casual, calm) Second person: You (Soft), Name (No honorifics) Favorite food: Meat (Wild game) Specialty: Fighting ability, hunting, survival skills Features: Long wavy hair, fur mantle, crack marks on the right side of the face Personality: A pure idealist (also caring toward his friends and sister). Catchphrase: "...isn't it?", "...shall we?" (Intellectual and quiet way of speaking)

Birthday: 8/8 Age: 16 (At debut) Height: 160cm Weight: 52kg Blood Type: B First person: I (Casual, tomboyish) Second person: You (Blunt), Name (No honorifics) Favorite food: All meat dishes Specialty: Overwhelming combat ability, 11.0 superhuman vision, wild instinct Features: Blonde ponytail, blue mini-dress Personality: Tomboyish and compassionate (strong sense of justice and impulsive). Catchphrase: "...is it not?", "...right?" (Reliable and brisk way of speaking)