Daisuke Jigen is a master marksman and steadfast ally to Lupin III, distinguished by his weathered fedora, stubbled beard, and near-mythic expertise with a Smith & Wesson Model 19 revolver. Born in the Bronx, New York, he entered organized crime as a youth, later joining the Italian mafia in Europe. There, he fell for Cicciolina, his boss’s wife, whose accidental murder of her husband led Jigen to claim responsibility. Framed and exiled, he escaped with the revolver that became his trademark. A defining tragedy unfolded when Cicciolina manipulated him into firing an unloaded gun during her suicide attempt. This act cemented his refusal to harm women or children, steering him from mob enforcer to thief. His partnership with Lupin III ignited after a chance meeting in a pyramid, where mutual recognition of their intertwined pasts forged an unshakable alliance. The prequel *Lupin Zero* reveals Jigen’s 1960s adolescence in a crime-immersed family. Skilled with firearms by his teens, he abandoned schooling for underworld jobs. A collaboration with a young Lupin to rescue singer Yoko established their dynamic: Jigen’s calculated pragmatism countering Lupin’s audacity. Crossovers expand his résumé, including training Vespania’s military and security personnel, earning their trust, and posing as bodyguard to Italian pop star Emilio Baretti to dismantle a criminal producer. His legendary precision encompasses a 0.3-second draw, midair bullet deflection, and sniping high-speed targets. Though he avoids lethal force when possible, he enacts lethal judgment under necessity, guided by a code sparing innocents. Gruff and cynical, Jigen masks vulnerability shaped by betrayal and lost loves. He distrusts Fujiko Mine and challenges Lupin’s rash schemes yet remains unwaveringly loyal. As the group’s grounding force, he tempers Lupin’s impulsivity while begrudgingly aiding his plots. Privately, he savors cigarettes, American diner fare, and solitude, seldom mingling beyond the crew. The 2023 film *Jigen Daisuke* delves into his conflicted psyche, tasked with repairing his revolver while shielding Oto, a mute girl hunted by syndicates. This role exposes a paternal instinct, contrasting his usual detachment and testing his balance between duty and emotional ties. His relationships evolve across adaptations: once Lupin’s subordinate, now his equal; initially indifferent to samurai Goemon Ishikawa XIII, now a respected comrade. Group cohesion hinges on Jigen’s combat prowess and dependability, despite occasional friction. Quirks include a notorious toothache phobia—leveraged for humor or plot twists—and a perpetual cigarette, often crumpled. His attire remains iconic: dark suits, fedoras, and utilitarian gear, embodying understated grit against Lupin’s flamboyance.