Lupin III is the grandson of the legendary gentleman thief Arsène Lupin and carries on his family tradition as the world's most wanted thief. He is a master of disguise, deduction, marksmanship, and improvisation, often creating elaborate gadgets and escape plans on the fly. Behind a fun-loving, foolhardy demeanor lies a sharp and resourceful mind that always adapts to changing circumstances. In the story of The Secret Page of Marco Polo, Lupin becomes embroiled in a mystery surrounding a long-lost page from Marco Polo's Travels. He initially swipes a tablet containing the clue but ends up leaving empty‑handed and is framed for the murder of Professor Theo Argent, forcing him to clear his name and uncover the truth. His motivations are driven by the thrill of the heist, intellectual curiosity, and a personal code that leads him to help those in need, even at his own risk. Key relationships include his relentless pursuit by Inspector Koichi Zenigata of the ICPO, his complicated romantic obsession with the femme fatale Fujiko Mine, and his loyal partnership with the sharpshooter Daisuke Jigen and the swordsman Goemon Ishikawa XIII. In this special, he receives unexpected assistance from the professor's granddaughter, Lisa Argent. Lupin rarely shows genuine development in a conventional sense, but his experiences often reinforce his cunning, his sense of honor, and his refusal to kill unless absolutely necessary. His notable abilities include flawless impersonation, safe‑cracking, escaping from any restraint, expert driving, and a vast knowledge of history and science, which he applies to solve puzzles and outwit adversaries.