Gen Asagiri, revived by Tsukasa Shishio to confirm Senku Ishigami’s death, emerges from self-proclaimed opportunist to the Kingdom of Science’s indispensable strategist. His striking bicolored hair—black left, white right—frames a jagged petrification scar on his left cheek, a relic of his deceptive past. Once healed and artfully recreated with paint, the scar fades as his loyalty to Senku eclipses self-interest, reflecting his shift from manipulation to genuine allegiance. A former mentalist and magician, Gen employs psychological acumen, calculated deception, and theatrical flair to outwit adversaries. He anticipates dangers like Magma’s assassination attempt with preplanned tricks such as fake blood packs, misdirects foes like Tsukasa and Hyoga through strategic falsehoods, and utilizes multilingual fluency and Morse code for covert communication. His chameleonic acting enables convincing impersonations, including mimicking feminine voices to infiltrate enemy ranks. Gen’s alliance with Senku evolves from mutual exploitation to trusted partnership. Initially intrigued by Senku’s scientific brilliance, he grows to admire the vision of rebuilding civilization, openly acknowledging fascination with Senku’s relentless resolve. Their bond solidifies through collaborative gambits—swindling Ryusui into funding the hot air balloon project and orchestrating the cellphone ruse during the Tsukasa conflict. Interactions with allies reveal layered dynamics: Kohaku’s initial distrust softens into respect, while Kaseki cultivates an unlikely camaraderie, persistently roping Gen into projects despite his aversion to labor. As Chrome’s mentor, Gen bridges modern science and primal curiosity, guiding him through complex theories and tactical ploys. Gen’s defining metamorphosis occurs when he willingly undergoes petrification to protect Senku, discarding his superficial persona. The scar’s disappearance mirrors this transformation, marking his transition from self-serving tactician to selfless ally. Former affectations of laziness and desire for a harem yield to steadfast collaboration, sharing living quarters and routines with Senku to fortify their unity. Beyond manipulation, Gen pioneers food preservation methods, rallies allies in crises, and engineers psychological warfare—such as sabotaging Hyoga’s weapons to sow discord. His unshakable composure during Dr. Xeno’s interrogations and high-stakes infiltrations underscores his value as a strategist. The eradicated scar stands as a visual testament to his redemption, shedding remnants of deceit to align fully with the Kingdom’s ideals. Abandoning frivolous pretenses, he commits wholly to Senku’s mission, his evolution complete—from cunning illusionist to cornerstone of humanity’s revival.