Reading: Senku Ishigami. Birthday: January 4. Zodiac: Capricorn. Age at debut: 15. Height: 171.4cm. Weight: 61kg. Blood Type: AB. First person: I (rough, casual). Likes: Science, ramen, good food. Dislikes: Manual labor, lacquer. Family: Byakuya Ishigami (adoptive father). Catchphrases: "Aah?", "That's obviously because...", "This is exhilarating," "Kukuku," "Mr./Ms. [Name]," "10 billion percent [something]." Personality: Arrogant and foul-mouthed, often adopting a cynical, pseudo-villainous attitude, but at his core, he is a hot-blooded man who values friendship and science above all else. He never laughs at others' efforts and possesses a resilient spirit that never gives up in any desperate situation. He doesn't take his frustrations out on people. A die-hard science geek, he uses his vast scientific knowledge, high-speed thinking, and mental arithmetic as weapons to rebuild civilization from scratch in a post-petrification world. He is an all-rounder with excellent observation, creativity, strategy, and talent management skills. While extremely meticulous, his passion can lead to occasional carelessness or bad luck, requiring help from his friends. His physical abilities are very low, with poor endurance and strength. He is extremely allergic to lacquer and breaks out in a severe rash if he touches it. He lost his biological parents early and was raised by his adoptive father, Byakuya. He is basically indifferent to romance and tends to be visibly repulsed when someone shows him affection. A persistent scientist who continues to challenge any difficulty for the sake of science and his dreams. Appearance: Spiky hair with a green and white gradient. Red eyes, sharp and slightly upturned. Very slender build, but lean muscle is visible.

Real name: Gen Asagiri. "Gen Asagiri" is his stage name. Age: 19. Birthday: April 1. Height: 175cm. Weight: 61kg. Pre-petrification: Magician and mentalist. First person: I (casual). Likes: Magic, cola, black nightshade. Dislikes: Hard manual labor. Catchphrases: "...you know?", "...right?", "For real-real?", "Terri-bad," "Cray-cray." First person: I (casual). Second person: [Name]-chan. Personality: An opportunist who calls himself a smooth-talking, shallow "flipper" or "bat." However, he is actually a sharp-witted intellectual who utilizes mentalism, psychological tricks, and bluffs. At his core, he is a kind-hearted person who is loyal to his friends. Even when acting for the sake of his comrades, he plays the "villain" to take the heat and tries to look cool. His opportunism is largely a pose. While he can change his expression at will, he is a man of a hundred faces who genuinely gets surprised, screams, and cries. Appearance: White and black hair, slightly longer on the left side. Small, grayish-black eyes. Sharp eyes. Slender build.

Ukyo Saionji Summary Reading: Ukyo Saionji. Age: 24. Birthday: June 5. Zodiac: Gemini. Height: 173cm. Weight: 63kg. Blood Type: A. First person: I (polite). Second person: Men by name (no honorific) / Women as [Name]-chan. Pre-petrification: JSDF member, submarine sonarman. Likes: Music, peace, friends. Dislikes: Conflict. Personality: A gentle, soft-spoken pacifist who always wears a smile. He has a kind personality that considers others' feelings, but he is also an intellectual with calm judgment and sharp insight. His weapons are the incredible hearing and archery skills he cultivated as a former JSDF member, allowing him to accurately grasp an opponent's position and situation from the slightest sound. Although his combat ability is high, he extremely dislikes taking lives and chooses methods that hurt no one whenever possible. He is a person of strong conviction who stuck to his path of not killing even when he belonged to the Tsukasa Empire. Usually mild-mannered and soft, he will take bold action to protect his friends. A pacifist who combines kindness with high ability and observation skills. Appearance: Slender build. White bowl cut with jade-colored round eyes. Has a baby face and is often mistaken for being younger than he is.