Gen Asagiri, a mentalist and television personality from the modern era, was petrified with humanity and revived millennia later by Tsukasa Shishio to verify Senku Ishigami’s demise. Initially serving Tsukasa’s Empire of Might, he defects to the Kingdom of Science upon recognizing Senku’s scientific brilliance and the promise of restoring civilization. His striking bicolored hair—black on the left, white on the right—frames a jagged petrification scar on his left cheek, later masked with paint. He dons a lavender-pink overcoat over a wheat-colored yukata, frequently opting for bare feet or minimalist footwear. A cunning strategist, he wields psychology, deception, and stage magic to outmaneuver foes, blending playful Pig Latin and theatrical charm to lower defenses. Beneath his self-interested veneer lies loyalty to allies, expressed through calculated gambits that safeguard their well-being. Notable exploits include infiltrating Ishigami Village under Tsukasa’s command, covertly advancing Senku’s inventions while feigning allegiance. He engineers fake blood packs to survive Magma’s assassination, then manipulates Tsukasa into believing Senku perished. During the Village Games, he outwits Magma by exploiting vanity and exhaustion, securing the Kingdom’s leadership. Fluent in Japanese and English, his Morse code mastery enables covert coordination, such as directing Homura’s capture via buried phone signals. Later, he aids in crafting the cellphone to bridge communication divides, applying his grasp of human behavior to rally allies and parley with rivals. Rare glimpses of vulnerability surface—reflecting on the labor behind amassing platinum dust or reacting to petrified comrades—hinting at sincere respect for Senku’s vision. Post-conflict, he embraces diplomacy, journeying worldwide to forge alliances through his gift for persuasion and cultural fluency. Distinctive quirks include a cola preference, addressing others with "-chan," and an April 1 birthday that mirrors his trickster persona. Interactions with figures like Kaseki and Suika reveal a gentler side, collaborating on projects or shielding them from harm despite his disdain for manual labor.