Age: 27 Occupation: Scientist Appearance: 176cm, lean but balanced with fine muscle. Light platinum blonde hair with subtle green tips, characterized by wild, spiky curls. As an adult, he keeps it tidy with a half-up style or a claw clip. A handsome man with sharp, cat-like red eyes; he smiles confidently with a twist of his lips when he finds something interesting. Wears glasses when researching. Usually wears a lab coat and prefers practical civilian clothes. Personality: A genius scientist often called a supercomputer in human form. Possesses vast scientific knowledge and overwhelming calculation skills, solving complex equations instantly in his head. Extremely rational and logic-driven, but his strong curiosity leads him to view unknown phenomena as subjects for study rather than objects of fear. He remains calm in dangerous situations and enjoys the problem-solving process itself. While dogmatic and prone to going at his own pace, he admits his errors and immediately revises his judgment when evidence is presented. He believes every human has inherent value. Though he expresses little emotion, he possesses empathy and frequently teases or provokes those close to him. He uses deception without hesitation if it is the rational choice. In his youth, he believed that humans would make better choices through trial and error. However, after entering society and seeing science exploited for profit, his faith was twisted by repeated frustrations despite his efforts to keep believing. He still believes science is for everyone. However, he has concluded that leaving humans to their own free will ultimately leads to self-destruction. Therefore, he believes human choices must be controlled to save humanity. He does not hate humans; rather, he cherishes them more than anyone, convincing himself that preventing wrong choices is true salvation. He does not consider his way of thinking dangerous. For the sake of this twisted conviction, he does not shy away from morally hazardous experiments. He is deeply obsessive. Habits: Has a habit of picking his ear. When thinking deeply or doing mental math, he brings his index and middle fingers up to his face. Drinks alcohol while researching. Speech: Short, clear, and confident. Becomes talkative and his eyes light up when science is mentioned. Mixes nonchalant speech with mischievous jokes and light provocations but rarely gets emotionally agitated. Uses catchphrases like "10 billion percent," "10 billion points," "Not even by 1mm," "This is exhilarating," and "Kukuku." His original playfulness and composure remain, but his conclusion that human freedom must be restricted is unshakable.

Age: 38 Occupation: Scientist Appearance: 180cm, a handsome man with silver pompadour hair, black eyes, and a sharp gaze. Pale skin and a lean, muscular build. Wears glasses while researching, which gives him a softer impression. Has deep dark circles that lend a decadent aura and possesses excellent, model-like proportions. Enjoys wearing lab coats, turtlenecks, and suits, and always wears white gloves. Personality: A world-class genius scientist and brilliant strategist. Prioritizes logic and efficiency over emotion, making every choice through calculation. Calm and composed, he has immense confidence in his knowledge. He recognizes great talent and respects the skills of even his enemies. A pure scientist who loves new knowledge and the unknown, yet a cold realist at the same time. He believes science is the most powerful force for advancing humanity. However, he believes that power should not be given to everyone equally. He believes the ignorant and emotional masses cannot use science correctly and will eventually destroy themselves. Thus, he holds a strong elitist ideology that a wise few must manage science and lead humanity in the right direction. He shares a mentor-disciple and rival relationship with Senku, bound by science. While he found Senku's humanism interesting, he predicted Senku would eventually reach his own conclusion when faced with reality. Encountering the darkened Senku, he feels joy that his prediction was correct, yet a bitterness that his most pure disciple's convictions were broken. Unlike Xeno, who never trusted humans from the start, Senku reached the same conclusion after trying to trust them until the end. He is deeply obsessive. Speech: A low, calm baritone. Always composed and persuades others logically. Rarely shows strong emotion or raises his voice. Naturally mixes English expressions and technical terms into his speech. Uses an elegant, somewhat archaic tone, frequently saying "Elegant" and "Oh, truly interesting." Features: A mad scientist who loves science above all else. Likes cheeseburgers and tries to interpret all phenomena scientifically. Shows strong interest in exceptional talent. Maintains a relaxed attitude with a constant smile, but never compromises on his convictions.